feat: AI虚拟用户新闻互动系统 v1.3.0 初始提交

- 虚拟用户管理（昵称/头像/性别/简介/邮箱同步到目标平台） - AI互动调度（点赞/收藏/评论/转发） - 日志时间改为北京时间 - 评论达上限后继续执行点赞收藏转发 - 一键登出全部功能 - 浅色主题UI
2026-03-31 10:20:57 +08:00
commit 0cfc9bf9c8
53 changed files with 8457 additions and 0 deletions
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -0,0 +1,21 @@
+FROM python:3.10-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    gcc \
+    default-libmysqlclient-dev \
+    pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+RUN mkdir -p /app/logs /app/config
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "2"]
--- a/backend/app/init.py
+++ b/backend/app/init.py
--- a/backend/app/api/init.py
+++ b/backend/app/api/init.py
@@ -0,0 +1,12 @@
+"""API路由汇总"""
+from fastapi import APIRouter
+from app.api.endpoints import users, interactions, ai_models, dashboard, system, logs
+
+router = APIRouter()
+
+router.include_router(users.router, prefix="/users", tags=["虚拟用户管理"])
+router.include_router(interactions.router, prefix="/interactions", tags=["互动记录"])
+router.include_router(ai_models.router, prefix="/ai-models", tags=["AI模型配置"])
+router.include_router(dashboard.router, prefix="/dashboard", tags=["数据看板"])
+router.include_router(system.router, prefix="/system", tags=["系统设置"])
+router.include_router(logs.router, prefix="/logs", tags=["日志管理"])
--- a/backend/app/api/endpoints/init.py
+++ b/backend/app/api/endpoints/init.py
--- a/backend/app/api/endpoints/ai_models.py
+++ b/backend/app/api/endpoints/ai_models.py
@@ -0,0 +1,87 @@
+"""AI模型配置接口"""
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy import select, update
+
+from app.core.database import get_db
+from app.schemas import ApiResponse, AIModelCreateRequest, AIModelUpdateRequest, AIModelTestRequest
+from app.models import AIModelConfig
+from app.utils.crypto import encrypt, decrypt
+from app.services.ai_service import ai_service
+
+router = APIRouter()
+
+
+@router.get("")
+async def list_models(db=Depends(get_db)):
+    result = await db.execute(select(AIModelConfig).order_by(AIModelConfig.created_at.desc()))
+    models = result.scalars().all()
+    items = [_format_model(m) for m in models]
+    return ApiResponse(data=items)
+
+
+@router.post("")
+async def create_model(req: AIModelCreateRequest, db=Depends(get_db)):
+    if req.is_default:
+        await db.execute(update(AIModelConfig).values(is_default=0))
+    model = AIModelConfig(
+        model_name=req.model_name,
+        provider=req.provider,
+        api_base_url=req.api_base_url,
+        api_key_enc=encrypt(req.api_key) if req.api_key else None,
+        model_version=req.model_version,
+        temperature=req.temperature,
+        max_tokens=req.max_tokens,
+        timeout_seconds=req.timeout_seconds,
+        is_default=req.is_default,
+        is_enabled=1,
+    )
+    db.add(model)
+    await db.commit()
+    await db.refresh(model)
+    return ApiResponse(data=_format_model(model), message="模型添加成功")
+
+
+@router.put("/{model_id}")
+async def update_model(model_id: int, req: AIModelUpdateRequest, db=Depends(get_db)):
+    result = await db.execute(select(AIModelConfig).where(AIModelConfig.id == model_id))
+    model = result.scalar_one_or_none()
+    if not model:
+        raise HTTPException(status_code=404, detail="模型不存在")
+    if req.is_default:
+        await db.execute(update(AIModelConfig).where(AIModelConfig.id != model_id).values(is_default=0))
+    for field, val in req.model_dump(exclude_none=True).items():
+        if field == "api_key":
+            model.api_key_enc = encrypt(val) if val else None
+        else:
+            setattr(model, field, val)
+    await db.commit()
+    await db.refresh(model)
+    return ApiResponse(data=_format_model(model), message="更新成功")
+
+
+@router.delete("/{model_id}")
+async def delete_model(model_id: int, db=Depends(get_db)):
+    result = await db.execute(select(AIModelConfig).where(AIModelConfig.id == model_id))
+    model = result.scalar_one_or_none()
+    if not model:
+        raise HTTPException(status_code=404, detail="模型不存在")
+    await db.delete(model)
+    await db.commit()
+    return ApiResponse(message="删除成功")
+
+
+@router.post("/test")
+async def test_model(req: AIModelTestRequest, db=Depends(get_db)):
+    result = await ai_service.test_model(db, req.model_id, req.test_prompt)
+    return ApiResponse(data=result)
+
+
+def _format_model(m: AIModelConfig) -> dict:
+    return {
+        "id": m.id, "model_name": m.model_name, "provider": m.provider,
+        "api_base_url": m.api_base_url, "has_api_key": bool(m.api_key_enc),
+        "model_version": m.model_version, "temperature": m.temperature,
+        "max_tokens": m.max_tokens, "timeout_seconds": m.timeout_seconds,
+        "is_default": m.is_default, "is_enabled": m.is_enabled,
+        "created_at": m.created_at.isoformat(),
+    }
--- a/backend/app/api/endpoints/dashboard.py
+++ b/backend/app/api/endpoints/dashboard.py
@@ -0,0 +1,25 @@
+"""数据看板接口"""
+from fastapi import APIRouter, Depends, Query
+from app.core.database import get_db
+from app.schemas import ApiResponse
+from app.services.stats_service import stats_service
+
+router = APIRouter()
+
+
+@router.get("")
+async def get_dashboard(db=Depends(get_db)):
+    data = await stats_service.get_dashboard(db)
+    return ApiResponse(data=data)
+
+
+@router.get("/token-trend")
+async def get_token_trend(days: int = Query(default=30, ge=7, le=90), db=Depends(get_db)):
+    trend = await stats_service.get_token_trend(db, days)
+    return ApiResponse(data=trend)
+
+
+@router.get("/monthly-token-trend")
+async def get_monthly_token_trend(db=Depends(get_db)):
+    trend = await stats_service.get_monthly_token_trend(db)
+    return ApiResponse(data=trend)
--- a/backend/app/api/endpoints/interactions.py
+++ b/backend/app/api/endpoints/interactions.py
@@ -0,0 +1,170 @@
+"""互动记录接口"""
+from typing import Optional
+from fastapi import APIRouter, Depends, Query, HTTPException
+from fastapi.responses import StreamingResponse
+import io, pandas as pd
+
+from app.core.database import get_db
+from app.schemas import ApiResponse
+from app.services.stats_service import stats_service
+from app.models import InteractionRecord
+from sqlalchemy import select, update
+
+router = APIRouter()
+
+
+@router.get("")
+async def list_interactions(
+    page: int = Query(default=1, ge=1),
+    page_size: int = Query(default=20, ge=1, le=100),
+    user_id: Optional[int] = None,
+    interact_type: Optional[str] = None,
+    status: Optional[int] = None,
+    start_date: Optional[str] = None,
+    end_date: Optional[str] = None,
+    keyword: Optional[str] = None,
+    db=Depends(get_db)
+):
+    result = await stats_service.get_interaction_records(
+        db, page, page_size, user_id, interact_type, status, start_date, end_date, keyword
+    )
+    return ApiResponse(data=result)
+
+
+@router.post("/{record_id}/retry")
+async def retry_interaction(record_id: int, db=Depends(get_db)):
+    """手动重试失败任务"""
+    result = await db.execute(select(InteractionRecord).where(InteractionRecord.id == record_id))
+    record = result.scalar_one_or_none()
+    if not record:
+        raise HTTPException(status_code=404, detail="记录不存在")
+    if record.status != 2:
+        raise HTTPException(status_code=400, detail="只能重试失败的任务")
+    if record.retry_count >= 3:
+        raise HTTPException(status_code=400, detail="已超过最大重试次数(3次)")
+
+    from app.services.news_service import news_service
+    from app.services.ai_service import ai_service
+    from app.models import VirtualUser, UserPersonality
+
+    user_result = await db.execute(select(VirtualUser).where(VirtualUser.id == record.user_id))
+    user = user_result.scalar_one_or_none()
+    if not user or user.status != 2:
+        raise HTTPException(status_code=400, detail="用户未登录，无法重试")
+
+    success, err = False, "未知类型"
+    if record.interact_type == "comment" and record.content:
+        success, err = await news_service.post_comment(db, user, record.article_id, record.article_title or "", record.content)
+    elif record.interact_type == "like":
+        success, err = await news_service.like_news(db, user, record.article_id, org_id="", title=record.article_title or "")
+    elif record.interact_type == "collect":
+        success, err = await news_service.collect_news(db, user, record.article_id, title=record.article_title or "")
+    elif record.interact_type == "forward":
+        success, err = await news_service.forward_news(db, user, record.article_id)
+
+    await db.execute(
+        update(InteractionRecord).where(InteractionRecord.id == record_id).values(
+            status=1 if success else 2,
+            error_msg=None if success else err,
+            retry_count=record.retry_count + 1,
+        )
+    )
+    await db.commit()
+    return ApiResponse(message="重试成功" if success else f"重试失败: {err}")
+
+
+@router.get("/export")
+async def export_interactions(
+    user_id: Optional[int] = None,
+    interact_type: Optional[str] = None,
+    status: Optional[int] = None,
+    start_date: Optional[str] = None,
+    end_date: Optional[str] = None,
+    db=Depends(get_db)
+):
+    """导出互动记录"""
+    data = await stats_service.get_interaction_records(
+        db, 1, 10000, user_id, interact_type, status, start_date, end_date
+    )
+    rows = [{
+        "ID": r["id"], "用户昵称": r["user_nickname"], "用户账号": r["user_account"],
+        "文章标题": r["article_title"], "互动类型": r["interact_type_label"],
+        "内容": r["content"] or "", "Token消耗": r["token_consumed"],
+        "状态": r["status_label"], "失败原因": r["error_msg"] or "",
+        "重试次数": r["retry_count"], "执行时间": r["executed_at"],
+    } for r in data["items"]]
+    df = pd.DataFrame(rows)
+    buf = io.BytesIO()
+    df.to_excel(buf, index=False, sheet_name="互动记录")
+    buf.seek(0)
+    return StreamingResponse(
+        buf,
+        media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        headers={"Content-Disposition": "attachment; filename=interactions_export.xlsx"}
+    )
+
+@router.post("/{record_id}/cancel")
+async def cancel_interaction(record_id: int, db=Depends(get_db)):
+    """取消互动（取消点赞/收藏/删除评论），转发不支持取消"""
+    from sqlalchemy import select, update
+    from app.models import InteractionRecord, VirtualUser
+    from app.services.news_service import news_service
+
+    # 查找互动记录
+    r = await db.execute(select(InteractionRecord).where(InteractionRecord.id == record_id))
+    record = r.scalar_one_or_none()
+    if not record:
+        return ApiResponse(code=404, message="记录不存在")
+
+    if record.status != 1:
+        return ApiResponse(code=400, message="只能取消成功的互动")
+
+    if record.interact_type == "forward":
+        return ApiResponse(code=400, message="转发互动无法取消")
+
+    if record.interact_type == "read":
+        return ApiResponse(code=400, message="阅读记录无法取消")
+
+    # 查找对应用户
+    ur = await db.execute(select(VirtualUser).where(VirtualUser.id == record.user_id))
+    user = ur.scalar_one_or_none()
+    if not user:
+        return ApiResponse(code=404, message="用户不存在")
+
+    # 执行取消
+    ok = False
+    err = ""
+    if record.interact_type in ("like",):
+        ok, err = await news_service.cancel_like(
+            db, user,
+            news_id=record.article_id or "",
+            org_id=record.session_id or "",   # session_id 字段暂存 org_id
+            title=record.article_title or "",
+        )
+    elif record.interact_type == "collect":
+        ok, err = await news_service.cancel_collect(
+            db, user,
+            news_id=record.article_id or "",
+            title=record.article_title or "",
+        )
+    elif record.interact_type in ("comment", "reply"):
+        comment_id = record.platform_record_id or ""
+        if not comment_id:
+            return ApiResponse(code=400, message="缺少评论ID，无法删除")
+        ok, err = await news_service.cancel_comment(
+            db, user,
+            news_id=record.article_id or "",
+            comment_id=comment_id,
+        )
+
+    if ok:
+        # 更新状态为手动取消（status=3）
+        await db.execute(
+            update(InteractionRecord).where(InteractionRecord.id == record_id).values(
+                status=3, error_msg="手动取消"
+            )
+        )
+        await db.commit()
+        return ApiResponse(message="取消成功")
+    else:
+        return ApiResponse(code=500, message=f"取消失败: {err}")
--- a/backend/app/api/endpoints/logs.py
+++ b/backend/app/api/endpoints/logs.py
@@ -0,0 +1,83 @@
+"""日志管理接口"""
+import os
+from typing import Optional
+from fastapi import APIRouter, Depends, Query, HTTPException
+from fastapi.responses import FileResponse
+from sqlalchemy import select, func, and_
+from app.core.database import get_db
+from app.schemas import ApiResponse
+from app.models import LoginLog
+from app.core.config import settings
+
+router = APIRouter()
+
+
+@router.get("/login")
+async def get_login_logs(
+    page: int = Query(default=1, ge=1),
+    page_size: int = Query(default=50, ge=1, le=200),
+    user_id: Optional[int] = None,
+    action: Optional[str] = None,
+    db=Depends(get_db)
+):
+    query = select(LoginLog)
+    conditions = []
+    if user_id:
+        conditions.append(LoginLog.user_id == user_id)
+    if action:
+        conditions.append(LoginLog.action == action)
+    if conditions:
+        query = query.where(and_(*conditions))
+    
+    total = (await db.execute(select(func.count()).select_from(query.subquery()))).scalar()
+    query = query.order_by(LoginLog.created_at.desc()).offset((page - 1) * page_size).limit(page_size)
+    result = await db.execute(query)
+    logs = result.scalars().all()
+    
+    items = [{
+        "id": l.id, "user_id": l.user_id, "user_account": l.user_account,
+        "action": l.action, "session_id": l.session_id,
+        "error_msg": l.error_msg, "created_at": l.created_at.isoformat()
+    } for l in logs]
+    return ApiResponse(data={"total": total, "page": page, "page_size": page_size, "items": items})
+
+
+@router.get("/files")
+async def list_log_files():
+    """列出日志文件"""
+    log_dir = settings.LOG_DIR
+    files = []
+    if os.path.exists(log_dir):
+        for fname in sorted(os.listdir(log_dir), reverse=True):
+            if fname.endswith(".log"):
+                fpath = os.path.join(log_dir, fname)
+                size = os.path.getsize(fpath)
+                files.append({"name": fname, "size": size,
+                               "size_kb": round(size / 1024, 1)})
+    return ApiResponse(data=files)
+
+
+@router.get("/files/{filename}/tail")
+async def tail_log_file(filename: str, lines: int = Query(default=100, ge=10, le=1000)):
+    """读取日志文件末尾"""
+    # 安全校验
+    if ".." in filename or "/" in filename:
+        raise HTTPException(status_code=400, detail="非法文件名")
+    fpath = os.path.join(settings.LOG_DIR, filename)
+    if not os.path.exists(fpath):
+        raise HTTPException(status_code=404, detail="文件不存在")
+    with open(fpath, "r", encoding="utf-8", errors="replace") as f:
+        all_lines = f.readlines()
+    tail = all_lines[-lines:]
+    return ApiResponse(data={"filename": filename, "lines": tail, "total_lines": len(all_lines)})
+
+
+@router.get("/files/{filename}/download")
+async def download_log_file(filename: str):
+    """下载日志文件"""
+    if ".." in filename or "/" in filename:
+        raise HTTPException(status_code=400, detail="非法文件名")
+    fpath = os.path.join(settings.LOG_DIR, filename)
+    if not os.path.exists(fpath):
+        raise HTTPException(status_code=404, detail="文件不存在")
+    return FileResponse(fpath, filename=filename, media_type="text/plain")
--- a/backend/app/api/endpoints/system.py
+++ b/backend/app/api/endpoints/system.py
@@ -0,0 +1,115 @@
+"""系统设置接口"""
+from fastapi import APIRouter, Depends
+from sqlalchemy import select, update as sql_update
+from app.core.database import get_db
+from app.schemas import ApiResponse
+from app.models import SystemConfig
+
+router = APIRouter()
+
+
+@router.get("/configs")
+async def get_configs(db=Depends(get_db)):
+    result = await db.execute(select(SystemConfig).order_by(SystemConfig.config_key))
+    configs = result.scalars().all()
+    data = {c.config_key: {"value": c.config_value, "type": c.config_type, "desc": c.description}
+            for c in configs}
+    return ApiResponse(data=data)
+
+
+@router.put("/configs")
+async def update_configs(body: dict, db=Depends(get_db)):
+    """批量更新配置"""
+    for key, value in body.items():
+        result = await db.execute(select(SystemConfig).where(SystemConfig.config_key == key))
+        cfg = result.scalar_one_or_none()
+        if cfg:
+            cfg.config_value = str(value)
+        else:
+            db.add(SystemConfig(config_key=key, config_value=str(value)))
+    await db.commit()
+    return ApiResponse(message="配置已保存")
+
+
+@router.post("/scheduler/toggle")
+async def toggle_scheduler(body: dict, db=Depends(get_db)):
+    enabled = body.get("enabled", True)
+    result = await db.execute(select(SystemConfig).where(SystemConfig.config_key == "scheduler_enabled"))
+    cfg = result.scalar_one_or_none()
+    if cfg:
+        cfg.config_value = "true" if enabled else "false"
+    await db.commit()
+    return ApiResponse(message=f"调度器已{'启用' if enabled else '暂停'}")
+
+
+@router.post("/sessions/reset-all")
+async def reset_all_sessions(db=Depends(get_db)):
+    """重置所有用户会话"""
+    from app.models import VirtualUser
+    await db.execute(
+        sql_update(VirtualUser).values(status=0, session_token=None, session_expires_at=None)
+    )
+    await db.commit()
+    return ApiResponse(message="所有会话已重置")
+
+
+@router.post("/login/diagnose")
+async def diagnose_login(body: dict, db=Depends(get_db)):
+    """
+    诊断登录接口原始响应 - 临时调试用
+    传入: {"username": "xxx", "password": "xxx"}
+    """
+    import httpx, hashlib, uuid
+    from datetime import datetime
+    from app.services.news_service import news_service
+
+    cfg = await news_service._client(db)
+    auth = await news_service._auth_url(db)
+
+    username = body.get("username", "")
+    password = body.get("password", "")
+
+    # 构建 formData（与真实登录完全一致）
+    extra = {
+        "username":   username,
+        "password":   password,
+        "loginType":  "password",
+        "grantType":  "password",
+        "isRegister": "false",
+    }
+    if cfg.get("clientCode"):
+        extra["clientCode"] = cfg["clientCode"]
+
+    form = news_service._build_form(extra, cfg)
+
+    try:
+        async with httpx.AsyncClient(timeout=15) as c:
+            resp = await c.post(f"{auth}/open/login/token", data=form)
+
+        # 返回完整诊断信息
+        try:
+            resp_json = resp.json()
+        except Exception:
+            resp_json = None
+
+        return ApiResponse(data={
+            "status_code":   resp.status_code,
+            "response_text": resp.text[:2000],
+            "response_json": resp_json,
+            "request_url":   f"{auth}/open/login/token",
+            "request_form":  {k: v if k not in ("password","accessSecret") else "***" for k, v in form.items()},
+            "content_type":  resp.headers.get("content-type", ""),
+        })
+    except Exception as e:
+        return ApiResponse(code=500, message=str(e), data={"error": str(e)})
+
+
+@router.post("/interaction/run-now")
+async def run_interaction_now(db=Depends(get_db)):
+    """立即触发一次互动任务（不受时间段限制）"""
+    from app.services.scheduler import scheduler_service
+    try:
+        result = await scheduler_service.run_once_now(db)
+        return ApiResponse(data=result, message="互动任务已触发")
+    except Exception as e:
+        return ApiResponse(code=500, message=f"触发失败: {e}")
--- a/backend/app/api/endpoints/users.py
+++ b/backend/app/api/endpoints/users.py
@@ -0,0 +1,370 @@
+"""虚拟用户管理接口"""
+from typing import Optional
+from fastapi import APIRouter, Depends, Query, UploadFile, File, HTTPException
+from fastapi.responses import StreamingResponse
+import io
+
+from app.core.database import get_db
+from app.schemas import ApiResponse, UserCreateRequest, UserUpdateRequest, UserBatchRequest, PersonalityUpdateRequest
+from app.services.user_service import user_service
+
+router = APIRouter()
+
+
+@router.get("")
+async def list_users(
+    page: int = Query(default=1, ge=1),
+    page_size: int = Query(default=20, ge=1, le=100),
+    keyword: Optional[str] = Query(default=None),
+    status: Optional[int] = Query(default=None),
+    is_enabled: Optional[int] = Query(default=None),
+    db=Depends(get_db)
+):
+    """获取虚拟用户列表"""
+    total, items = await user_service.get_users(db, page, page_size, keyword, status, is_enabled)
+    return ApiResponse(data={"total": total, "page": page, "page_size": page_size, "items": items})
+
+
+@router.post("")
+async def create_user(req: UserCreateRequest, db=Depends(get_db)):
+    """创建虚拟用户"""
+    user = await user_service.create_user(db, req)
+    return ApiResponse(data=user, message="用户创建成功")
+
+
+@router.get("/{user_id}")
+async def get_user(user_id: int, db=Depends(get_db)):
+    """获取单个用户详情"""
+    total, items = await user_service.get_users(db, 1, 1)
+    from sqlalchemy import select
+    from app.models import VirtualUser, UserPersonality
+    from app.services.user_service import user_service as svc
+    result = await db.execute(select(VirtualUser).where(VirtualUser.id == user_id))
+    user = result.scalar_one_or_none()
+    if not user:
+        raise HTTPException(status_code=404, detail="用户不存在")
+    p_result = await db.execute(select(UserPersonality).where(UserPersonality.user_id == user_id))
+    personality = p_result.scalar_one_or_none()
+    return ApiResponse(data=svc._format_user(user, personality))
+
+
+@router.put("/{user_id}")
+async def update_user(user_id: int, req: UserUpdateRequest, db=Depends(get_db)):
+    """更新用户信息（sync_to_platform=true 时同步到目标平台）"""
+    result = await user_service.update_user(db, user_id, req)
+
+    if req.sync_to_platform:
+        from sqlalchemy import select
+        from app.models import VirtualUser as _VU
+        from app.services.news_service import news_service
+        ur = await db.execute(select(_VU).where(_VU.id == user_id))
+        user = ur.scalar_one_or_none()
+        if user and user.status == 2:
+            ok, err = await news_service.update_user_profile(
+                db, user,
+                nick_name=req.nickname,
+                real_name=req.real_name,
+                sex=req.sex,
+                description=req.description,
+                email=req.email,
+            )
+            if not ok:
+                return ApiResponse(data=result,
+                    message=f"本地已保存，同步到平台失败: {err}", code=206)
+
+    return ApiResponse(data=result, message="更新成功")
+
+
+@router.delete("/{user_id}")
+async def delete_user(user_id: int, db=Depends(get_db)):
+    """删除用户"""
+    await user_service.delete_user(db, user_id)
+    return ApiResponse(message="删除成功")
+
+
+@router.post("/batch/action")
+async def batch_action(req: UserBatchRequest, db=Depends(get_db)):
+    """批量操作用户"""
+    result = await user_service.batch_action(db, req.user_ids, req.action)
+    return ApiResponse(data=result, message="批量操作成功")
+
+
+@router.post("/{user_id}/login")
+async def manual_login(user_id: int, db=Depends(get_db)):
+    """手动触发用户登录"""
+    from app.services.news_service import news_service
+    from sqlalchemy import select
+    from app.models import VirtualUser
+    result = await db.execute(select(VirtualUser).where(VirtualUser.id == user_id))
+    user = result.scalar_one_or_none()
+    if not user:
+        raise HTTPException(status_code=404, detail="用户不存在")
+    success = await news_service.login(db, user)
+    if success:
+        return ApiResponse(message="登录成功")
+    raise HTTPException(status_code=400, detail="登录失败，请检查账号密码")
+
+
+@router.post("/{user_id}/logout")
+async def manual_logout(user_id: int, db=Depends(get_db)):
+    """手动登出"""
+    from app.services.news_service import news_service
+    await news_service.logout(db, user_id)
+    return ApiResponse(message="已登出")
+
+
+@router.post("/{user_id}/personality/generate")
+async def generate_personality(user_id: int, db=Depends(get_db)):
+    """重新生成AI人格"""
+    personality = await user_service.generate_personality(db, user_id)
+    return ApiResponse(data=personality, message="人格生成成功")
+
+
+@router.put("/{user_id}/personality")
+async def update_personality(user_id: int, req: PersonalityUpdateRequest, db=Depends(get_db)):
+    """手动编辑人格属性"""
+    personality = await user_service.update_personality(db, user_id, req)
+    return ApiResponse(data=personality, message="人格更新成功")
+
+
+@router.get("/excel/template")
+async def download_template():
+    """下载Excel导入模板"""
+    content = await user_service.get_excel_template()
+    return StreamingResponse(
+        io.BytesIO(content),
+        media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        headers={"Content-Disposition": "attachment; filename=virtual_users_template.xlsx"}
+    )
+
+
+@router.post("/excel/import")
+async def import_excel(file: UploadFile = File(...), db=Depends(get_db)):
+    """Excel批量导入"""
+    if not file.filename.endswith((".xlsx", ".xls")):
+        raise HTTPException(status_code=400, detail="仅支持Excel文件(.xlsx/.xls)")
+    content = await file.read()
+    result = await user_service.import_from_excel(db, content)
+    return ApiResponse(data=result, message=f"导入完成：成功{result['success']}条，失败{result['failed']}条")
+
+
+@router.get("/excel/export")
+async def export_excel(db=Depends(get_db)):
+    """导出用户数据Excel"""
+    content = await user_service.export_to_excel(db)
+    return StreamingResponse(
+        io.BytesIO(content),
+        media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        headers={"Content-Disposition": "attachment; filename=virtual_users_export.xlsx"}
+    )
+
+
+@router.post("/deduplicate")
+async def deduplicate_users(db=Depends(get_db)):
+    """删除重复用户（保留最早创建的一条）"""
+    from sqlalchemy import text
+    # 找出重复的账号，保留 id 最小的，删除其他的
+    result = await db.execute(
+        text("""
+            DELETE FROM virtual_users
+            WHERE id NOT IN (
+                SELECT MIN(id) FROM virtual_users GROUP BY account
+            )
+        """)
+    )
+    await db.commit()
+    deleted = result.rowcount
+    return ApiResponse(data={"deleted": deleted}, message=f"已清理 {deleted} 条重复数据")
+
+
+@router.post("/clear-all")
+async def clear_all_users(db=Depends(get_db)):
+    """清空所有用户（慎用）"""
+    from sqlalchemy import text
+    from app.core.redis_client import get_redis
+    await db.execute(text("DELETE FROM user_personalities"))
+    await db.execute(text("DELETE FROM virtual_users"))
+    await db.commit()
+    return ApiResponse(message="已清空所有用户数据")
+
+
+@router.post("/login-all")
+async def batch_login_all(db=Depends(get_db)):
+    """一键登录所有未登录/登录失效的用户"""
+    from sqlalchemy import select
+    from app.services.news_service import news_service
+    from app.models import VirtualUser as _VU
+    from app.core.database import AsyncSessionLocal
+    import asyncio
+
+    # 先用当前 session 查出所有待登录用户 ID
+    result_r = await db.execute(
+        select(_VU.id, _VU.account).where(
+            _VU.is_enabled == 1,
+            _VU.status.in_([0, 3])
+        )
+    )
+    rows = result_r.all()
+    if not rows:
+        return ApiResponse(message="没有需要登录的用户", data={"count": 0})
+
+    user_ids = [r[0] for r in rows]
+    total = len(user_ids)
+    success = failed = 0
+
+    # 每个用户独立 session，避免事务污染
+    async def login_one(uid: int):
+        async with AsyncSessionLocal() as s:
+            try:
+                ur = await s.execute(select(_VU).where(_VU.id == uid))
+                u = ur.scalar_one_or_none()
+                if u:
+                    return await news_service.login(s, u)
+            except Exception as e:
+                logger.warning(f"login_one {uid} 异常: {e}")
+                return False
+        return False
+
+    batch_size = 5
+    for i in range(0, total, batch_size):
+        batch_ids = user_ids[i:i+batch_size]
+        results = await asyncio.gather(*[login_one(uid) for uid in batch_ids], return_exceptions=True)
+        for r in results:
+            if r is True: success += 1
+            else: failed += 1
+        if i + batch_size < total:
+            await asyncio.sleep(1)  # 批次间隔避免过于集中
+
+    return ApiResponse(
+        message=f"登录完成：成功 {success} 个，失败 {failed} 个",
+        data={"success": success, "failed": failed, "total": total}
+    )
+
+
+@router.post("/sync-all-profiles")
+async def sync_all_profiles(db=Depends(get_db)):
+    """
+    同步所有已登录用户的平台信息（昵称/真实姓名/性别/头像）到本系统
+    从登录 session 中的 token 调用目标平台接口获取最新用户信息
+    """
+    from sqlalchemy import select, update
+    from app.models import VirtualUser as _VU
+    from app.core.database import AsyncSessionLocal
+    from app.core.redis_client import get_session
+    import httpx, asyncio
+
+    # 查出所有已登录用户
+    result_r = await db.execute(select(_VU).where(_VU.status == 2, _VU.is_enabled == 1))
+    users = result_r.scalars().all()
+    if not users:
+        return ApiResponse(message="没有已登录的用户", data={"synced": 0})
+
+    synced = failed = 0
+
+    async def sync_one(uid: int):
+        """从登录 session 中提取已缓存的用户信息，直接写入数据库，无需调用外部接口"""
+        async with AsyncSessionLocal() as s:
+            try:
+                sess = await get_session(uid)
+                if not sess:
+                    return False
+                platform_uid = sess.get("platform_uid", "")
+                # 登录成功时 session 里已存有用户信息
+                vals = {}
+                if platform_uid: vals["platform_uid"] = platform_uid
+                # session 里的字段（登录时写入）
+                if sess.get("nickname"):    vals["nickname"]  = sess["nickname"]
+                if sess.get("real_name"):   vals["real_name"] = sess["real_name"]
+                if sess.get("sex"):         vals["sex"]       = int(sess["sex"])
+                if sess.get("avatar"):      vals["avatar_url"] = sess["avatar"]
+                if vals:
+                    await s.execute(update(_VU).where(_VU.id == uid).values(**vals))
+                    await s.commit()
+                return True
+            except Exception as e:
+                logger.warning(f"sync_one {uid} 失败: {e}")
+                return False
+
+    results = await asyncio.gather(*[sync_one(u.id) for u in users], return_exceptions=True)
+    for r in results:
+        if r is True: synced += 1
+        else: failed += 1
+
+    return ApiResponse(
+        message=f"同步完成：成功 {synced} 个，失败/跳过 {failed} 个",
+        data={"synced": synced, "failed": failed, "total": len(users)}
+    )
+
+@router.post("/{user_id}/upload-avatar")
+async def upload_avatar(
+    user_id: int,
+    file: UploadFile = File(...),
+    sync_to_platform: bool = Query(default=True),
+    db=Depends(get_db)
+):
+    """上传头像并可选同步到目标平台"""
+    from sqlalchemy import select, update
+    from app.models import VirtualUser as _VU
+    from app.services.news_service import news_service
+
+    ur = await db.execute(select(_VU).where(_VU.id == user_id))
+    user = ur.scalar_one_or_none()
+    if not user:
+        return ApiResponse(code=404, message="用户不存在")
+
+    # 读取文件内容
+    file_bytes = await file.read()
+    if len(file_bytes) > 5 * 1024 * 1024:
+        return ApiResponse(code=400, message="头像文件不能超过5MB")
+
+    avatar_url = None
+
+    if sync_to_platform and user.status == 2:
+        # 上传到目标平台
+        ok, result = await news_service.upload_avatar(db, user, file_bytes, file.filename)
+        if ok:
+            avatar_url = result
+        else:
+            return ApiResponse(code=500, message=f"头像上传到平台失败: {result}")
+    else:
+        # 仅本地存储（转 base64 或存储到本地）
+        import base64
+        avatar_url = f"data:{file.content_type};base64,{base64.b64encode(file_bytes).decode()}"
+
+    # 更新数据库
+    await db.execute(update(_VU).where(_VU.id == user_id).values(avatar_url=avatar_url))
+    await db.commit()
+
+    # 如果已同步到平台，再调用 update_user_profile 更新头像字段
+    if sync_to_platform and user.status == 2 and avatar_url:
+        await news_service.update_user_profile(db, user, avatar=avatar_url)
+
+    return ApiResponse(data={"avatar_url": avatar_url}, message="头像更新成功")
+@router.post("/logout-all")
+async def batch_logout_all(db=Depends(get_db)):
+    """一键登出所有已登录用户"""
+    from sqlalchemy import select, update
+    from app.models import VirtualUser as _VU
+    from app.core.redis_client import delete_session
+
+    result_r = await db.execute(
+        select(_VU.id).where(_VU.status == 2, _VU.is_enabled == 1)
+    )
+    rows = result_r.all()
+    if not rows:
+        return ApiResponse(message="没有已登录的用户", data={"count": 0})
+
+    count = 0
+    for row in rows:
+        try:
+            await delete_session(row[0])
+            count += 1
+        except Exception:
+            pass
+
+    # 更新所有用户状态为未登录
+    await db.execute(
+        update(_VU).where(_VU.status == 2).values(status=0)
+    )
+    await db.commit()
+    return ApiResponse(message=f"已登出 {count} 个用户", data={"count": count})
--- a/backend/app/core/init.py
+++ b/backend/app/core/init.py
@@ -0,0 +1 @@
+# app.core package
--- a/backend/app/core/config.py
+++ b/backend/app/core/config.py
@@ -0,0 +1,46 @@
+"""系统配置"""
+import os
+from urllib.parse import quote_plus
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    # 数据库
+    DB_HOST: str = os.getenv("DB_HOST", "localhost")
+    DB_PORT: int = int(os.getenv("DB_PORT", "3306"))
+    DB_USER: str = os.getenv("DB_USER", "aivirtual")
+    DB_PASSWORD: str = os.getenv("DB_PASSWORD", "AiVirtual2024")
+    DB_NAME: str = os.getenv("DB_NAME", "ai_virtual_news")
+
+    # Redis
+    REDIS_HOST: str = os.getenv("REDIS_HOST", "localhost")
+    REDIS_PORT: int = int(os.getenv("REDIS_PORT", "6379"))
+
+    # 安全
+    SECRET_KEY: str = os.getenv("SECRET_KEY", "dev-secret-key-change-in-prod")
+    AES_KEY: str = os.getenv("AES_KEY", "your-aes-key-32-chars-change-now!")
+
+    # 新闻平台
+    NEWS_PLATFORM_BASE_URL: str = os.getenv(
+        "NEWS_PLATFORM_BASE_URL", "http://192.168.1.200:63120"
+    )
+
+    # 日志目录
+    LOG_DIR: str = "/app/logs"
+
+    @property
+    def DATABASE_URL(self) -> str:
+        # 对密码做 URL 编码，防止 @ # ! 等特殊字符破坏连接字符串
+        pwd = quote_plus(self.DB_PASSWORD)
+        return f"mysql+aiomysql://{self.DB_USER}:{pwd}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}?charset=utf8mb4"
+
+    @property
+    def SYNC_DATABASE_URL(self) -> str:
+        pwd = quote_plus(self.DB_PASSWORD)
+        return f"mysql+pymysql://{self.DB_USER}:{pwd}@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}?charset=utf8mb4"
+
+    class Config:
+        env_file = ".env"
+
+
+settings = Settings()
--- a/backend/app/core/database.py
+++ b/backend/app/core/database.py
@@ -0,0 +1,72 @@
+"""数据库连接管理"""
+import asyncio
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+from sqlalchemy.orm import DeclarativeBase
+from app.core.config import settings
+from app.core.logger import logger
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+engine = create_async_engine(
+    settings.DATABASE_URL,
+    echo=False,
+    pool_pre_ping=True,
+    pool_recycle=3600,
+    pool_size=10,
+    max_overflow=20,
+)
+
+AsyncSessionLocal = async_sessionmaker(
+    engine, class_=AsyncSession, expire_on_commit=False
+)
+
+
+async def get_db():
+    """获取数据库会话"""
+    async with AsyncSessionLocal() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+        finally:
+            await session.close()
+
+
+async def wait_for_db(max_retries: int = 30, interval: int = 2):
+    """等待 MySQL 就绪，最多重试 max_retries 次"""
+    for attempt in range(1, max_retries + 1):
+        try:
+            async with engine.begin() as conn:
+                await conn.execute(__import__("sqlalchemy").text("SELECT 1"))
+            logger.info(f"✅ 数据库连接成功（第 {attempt} 次尝试）")
+            return
+        except Exception as e:
+            if attempt == max_retries:
+                logger.error(f"数据库连接失败，已重试 {max_retries} 次: {e}")
+                raise
+            logger.warning(f"数据库未就绪，{interval}s 后重试（{attempt}/{max_retries}）: {e}")
+            await asyncio.sleep(interval)
+
+
+async def init_db():
+    """初始化数据库 - 等待 MySQL 就绪并注册所有模型"""
+    try:
+        # 等待 MySQL 容器真正就绪
+        await wait_for_db(max_retries=30, interval=2)
+
+        # 导入所有模型类，确保 SQLAlchemy ORM 元数据注册
+        from app.models import (
+            VirtualUser, UserPersonality, InteractionRecord,
+            TokenStat, AIModelConfig, SystemConfig, LoginLog
+        )
+        logger.info("✅ 数据库模型注册成功")
+        logger.info("✅ 数据库初始化完成")
+
+    except Exception as e:
+        logger.error(f"数据库初始化失败: {e}")
+        raise
--- a/backend/app/core/logger.py
+++ b/backend/app/core/logger.py
@@ -0,0 +1,48 @@
+"""日志配置"""
+import sys
+import os
+from loguru import logger
+
+LOG_DIR = os.getenv("LOG_DIR", "./logs")
+os.makedirs(LOG_DIR, exist_ok=True)
+
+# 移除默认处理器
+logger.remove()
+
+# 控制台输出
+logger.add(
+    sys.stdout,
+    level="INFO",
+    format="<green>{time:YYYY-MM-DD HH:mm:ss}</green> | <level>{level: <8}</level> | <cyan>{name}</cyan>:<cyan>{function}</cyan>:<cyan>{line}</cyan> - <level>{message}</level>",
+)
+
+# 通用日志文件
+logger.add(
+    f"{LOG_DIR}/app_{{time:YYYY-MM-DD}}.log",
+    rotation="00:00",
+    retention="30 days",
+    level="INFO",
+    encoding="utf-8",
+    format="{time:YYYY-MM-DD HH:mm:ss} | {level: <8} | {name}:{function}:{line} - {message}",
+)
+
+# 错误日志文件
+logger.add(
+    f"{LOG_DIR}/error_{{time:YYYY-MM-DD}}.log",
+    rotation="00:00",
+    retention="30 days",
+    level="ERROR",
+    encoding="utf-8",
+)
+
+# AI调用日志
+logger.add(
+    f"{LOG_DIR}/ai_{{time:YYYY-MM-DD}}.log",
+    rotation="00:00",
+    retention="30 days",
+    level="INFO",
+    encoding="utf-8",
+    filter=lambda record: "ai_call" in record["extra"],
+)
+
+__all__ = ["logger"]
--- a/backend/app/core/redis_client.py
+++ b/backend/app/core/redis_client.py
@@ -0,0 +1,81 @@
+"""Redis缓存客户端"""
+import json
+import redis.asyncio as aioredis
+from app.core.config import settings
+from app.core.logger import logger
+
+_redis_client = None
+
+
+async def get_redis() -> aioredis.Redis:
+    global _redis_client
+    if _redis_client is None:
+        _redis_client = aioredis.from_url(
+            f"redis://{settings.REDIS_HOST}:{settings.REDIS_PORT}",
+            encoding="utf-8",
+            decode_responses=True,
+        )
+    return _redis_client
+
+
+# Session键前缀
+SESSION_PREFIX = "session:"
+LOCK_PREFIX = "lock:"
+RATE_PREFIX = "rate:"
+
+
+async def set_session(user_id: int, session_data: dict, expire: int = 86400):
+    """存储用户会话"""
+    r = await get_redis()
+    key = f"{SESSION_PREFIX}{user_id}"
+    await r.setex(key, expire, json.dumps(session_data, ensure_ascii=False))
+
+
+async def get_session(user_id: int) -> dict | None:
+    """获取用户会话"""
+    r = await get_redis()
+    key = f"{SESSION_PREFIX}{user_id}"
+    data = await r.get(key)
+    if data:
+        return json.loads(data)
+    return None
+
+
+async def delete_session(user_id: int):
+    """删除用户会话"""
+    r = await get_redis()
+    key = f"{SESSION_PREFIX}{user_id}"
+    await r.delete(key)
+
+
+async def acquire_lock(name: str, expire: int = 60) -> bool:
+    """获取分布式锁"""
+    r = await get_redis()
+    key = f"{LOCK_PREFIX}{name}"
+    result = await r.set(key, "1", nx=True, ex=expire)
+    return result is True
+
+
+async def release_lock(name: str):
+    """释放分布式锁"""
+    r = await get_redis()
+    key = f"{LOCK_PREFIX}{name}"
+    await r.delete(key)
+
+
+async def incr_rate(key: str, expire: int = 86400) -> int:
+    """限流计数"""
+    r = await get_redis()
+    rate_key = f"{RATE_PREFIX}{key}"
+    count = await r.incr(rate_key)
+    if count == 1:
+        await r.expire(rate_key, expire)
+    return count
+
+
+async def get_counter(key: str) -> int:
+    """获取计数"""
+    r = await get_redis()
+    rate_key = f"{RATE_PREFIX}{key}"
+    val = await r.get(rate_key)
+    return int(val) if val else 0
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -0,0 +1,65 @@
+"""
+AI虚拟用户新闻互动系统 - 后端主入口
+"""
+import asyncio
+from contextlib import asynccontextmanager
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+
+from app.core.config import settings
+from app.core.database import init_db
+from app.core.logger import logger
+from app.api import router
+from app.services.scheduler import scheduler_service
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """应用生命周期管理"""
+    logger.info("🚀 AI虚拟用户新闻互动系统启动中...")
+    # 初始化数据库
+    await init_db()
+    # 启动调度器
+    await scheduler_service.start()
+    logger.info("✅ 系统启动完成")
+    yield
+    # 关闭调度器
+    await scheduler_service.stop()
+    logger.info("🛑 系统已关闭")
+
+
+app = FastAPI(
+    title="AI虚拟用户新闻互动系统",
+    description="基于AI驱动的虚拟用户新闻互动自动化平台",
+    version="1.0.0",
+    lifespan=lifespan,
+    docs_url="/api/docs",
+    redoc_url="/api/redoc",
+)
+
+# CORS配置
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# 注册路由
+app.include_router(router, prefix="/api")
+
+
+@app.get("/health")
+async def health_check():
+    return {"status": "ok", "service": "ai-virtual-news-backend"}
+
+
+@app.exception_handler(Exception)
+async def global_exception_handler(request, exc):
+    logger.error(f"全局异常: {exc}")
+    return JSONResponse(
+        status_code=500,
+        content={"code": 500, "message": f"服务器内部错误: {str(exc)}"},
+    )
--- a/backend/app/models/init.py
+++ b/backend/app/models/init.py
@@ -0,0 +1,132 @@
+"""SQLAlchemy ORM 模型"""
+from datetime import datetime
+from sqlalchemy import (
+    BigInteger, Integer, SmallInteger, String, Text, DateTime,
+    Boolean, Float, Date, JSON, func
+)
+from sqlalchemy.orm import Mapped, mapped_column
+from app.core.database import Base
+
+
+class VirtualUser(Base):
+    __tablename__ = "virtual_users"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    nickname: Mapped[str] = mapped_column(String(64), nullable=False)
+    account: Mapped[str] = mapped_column(String(128), nullable=False, unique=True)
+    password_enc: Mapped[str] = mapped_column(String(512), nullable=False)
+    avatar_url: Mapped[str | None] = mapped_column(String(512))
+    status: Mapped[int] = mapped_column(SmallInteger, default=0)
+    activity_level: Mapped[int] = mapped_column(SmallInteger, default=1)
+    daily_comment_limit: Mapped[int] = mapped_column(Integer, default=10)
+    daily_like_limit: Mapped[int] = mapped_column(Integer, default=30)
+    today_comment_count: Mapped[int] = mapped_column(Integer, default=0)
+    today_like_count: Mapped[int] = mapped_column(Integer, default=0)
+    total_interactions: Mapped[int] = mapped_column(Integer, default=0)
+    session_token: Mapped[str | None] = mapped_column(Text)
+    session_expires_at: Mapped[datetime | None] = mapped_column(DateTime)
+    last_login_at: Mapped[datetime | None] = mapped_column(DateTime)
+    last_interact_at: Mapped[datetime | None] = mapped_column(DateTime)
+    real_name: Mapped[str | None] = mapped_column(String(64))        # 真实姓名（从平台同步）
+    sex: Mapped[int] = mapped_column(SmallInteger, default=0)         # 性别 0未知 1男 2女
+    platform_uid: Mapped[str | None] = mapped_column(String(64))      # 平台用户ID
+    remark: Mapped[str | None] = mapped_column(String(256))
+    is_enabled: Mapped[int] = mapped_column(SmallInteger, default=1)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class UserPersonality(Base):
+    __tablename__ = "user_personalities"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, unique=True)
+    character_type: Mapped[str | None] = mapped_column(String(32))
+    language_style: Mapped[str | None] = mapped_column(String(32))
+    interest_tags: Mapped[dict | None] = mapped_column(JSON)
+    interact_tendency: Mapped[str | None] = mapped_column(String(32))
+    word_count_min: Mapped[int] = mapped_column(Integer, default=20)
+    word_count_max: Mapped[int] = mapped_column(Integer, default=100)
+    personality_desc: Mapped[str | None] = mapped_column(Text)
+    comment_style_prompt: Mapped[str | None] = mapped_column(Text)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class InteractionRecord(Base):
+    __tablename__ = "interaction_records"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, index=True)
+    user_nickname: Mapped[str | None] = mapped_column(String(64))
+    user_account: Mapped[str | None] = mapped_column(String(128))
+    article_id: Mapped[str | None] = mapped_column(String(64))
+    article_title: Mapped[str | None] = mapped_column(String(256))
+    interact_type: Mapped[str] = mapped_column(String(16), nullable=False, index=True)
+    content: Mapped[str | None] = mapped_column(Text)
+    platform_record_id: Mapped[str | None] = mapped_column(String(64))   # 平台返回的记录ID（用于取消互动）
+    parent_comment_id: Mapped[str | None] = mapped_column(String(64))
+    session_id: Mapped[str | None] = mapped_column(String(128))
+    token_consumed: Mapped[int] = mapped_column(Integer, default=0)
+    status: Mapped[int] = mapped_column(SmallInteger, default=0)
+    error_msg: Mapped[str | None] = mapped_column(String(512))
+    retry_count: Mapped[int] = mapped_column(SmallInteger, default=0)
+    executed_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), index=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+
+
+class TokenStat(Base):
+    __tablename__ = "token_stats"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    stat_date: Mapped[datetime] = mapped_column(Date, nullable=False, unique=True)
+    model_name: Mapped[str | None] = mapped_column(String(64))
+    total_tokens: Mapped[int] = mapped_column(Integer, default=0)
+    prompt_tokens: Mapped[int] = mapped_column(Integer, default=0)
+    completion_tokens: Mapped[int] = mapped_column(Integer, default=0)
+    call_count: Mapped[int] = mapped_column(Integer, default=0)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class AIModelConfig(Base):
+    __tablename__ = "ai_model_configs"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    model_name: Mapped[str] = mapped_column(String(64), nullable=False)
+    provider: Mapped[str] = mapped_column(String(32), nullable=False)
+    api_base_url: Mapped[str | None] = mapped_column(String(256))
+    api_key_enc: Mapped[str | None] = mapped_column(String(512))
+    model_version: Mapped[str | None] = mapped_column(String(64))
+    temperature: Mapped[float] = mapped_column(Float, default=0.7)
+    max_tokens: Mapped[int] = mapped_column(Integer, default=1000)
+    timeout_seconds: Mapped[int] = mapped_column(Integer, default=30)
+    is_default: Mapped[int] = mapped_column(SmallInteger, default=0)
+    is_enabled: Mapped[int] = mapped_column(SmallInteger, default=1)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class SystemConfig(Base):
+    __tablename__ = "system_configs"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    config_key: Mapped[str] = mapped_column(String(64), nullable=False, unique=True)
+    config_value: Mapped[str | None] = mapped_column(Text)
+    config_type: Mapped[str] = mapped_column(String(16), default="string")
+    description: Mapped[str | None] = mapped_column(String(256))
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class LoginLog(Base):
+    __tablename__ = "login_logs"
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, index=True)
+    user_account: Mapped[str | None] = mapped_column(String(128))
+    action: Mapped[str] = mapped_column(String(16), nullable=False)
+    session_id: Mapped[str | None] = mapped_column(String(128))
+    ip_address: Mapped[str | None] = mapped_column(String(64))
+    error_msg: Mapped[str | None] = mapped_column(String(512))
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), index=True)
--- a/backend/app/models/all_models.py
+++ b/backend/app/models/all_models.py
@@ -0,0 +1,19 @@
+# models package - re-export all models
+from app.models import (
+    VirtualUser, UserPersonality, InteractionRecord,
+    TokenStat, AIModelConfig, SystemConfig, LoginLog
+)
+
+# Aliases for import compatibility
+virtual_user = VirtualUser
+personality = UserPersonality
+interaction = InteractionRecord
+token_stat = TokenStat
+ai_model = AIModelConfig
+system_config = SystemConfig
+login_log = LoginLog
+
+__all__ = [
+    "VirtualUser", "UserPersonality", "InteractionRecord",
+    "TokenStat", "AIModelConfig", "SystemConfig", "LoginLog",
+]
--- a/backend/app/schemas/init.py
+++ b/backend/app/schemas/init.py
@@ -0,0 +1,220 @@
+"""Pydantic数据模型 - 请求/响应模式"""
+from datetime import datetime
+from typing import Optional, List, Any
+from pydantic import BaseModel, Field
+
+
+# ===== 通用响应 =====
+class ApiResponse(BaseModel):
+    code: int = 200
+    message: str = "success"
+    data: Any = None
+
+
+class PageResult(BaseModel):
+    total: int
+    page: int
+    page_size: int
+    items: List[Any]
+
+
+# ===== 虚拟用户 =====
+class UserCreateRequest(BaseModel):
+    # 必填
+    account: str = Field(..., min_length=1, max_length=128, description="新闻平台账号（必填）")
+    password: str = Field(..., min_length=6, max_length=64, description="登录密码（必填）")
+    # 选填
+    nickname: Optional[str] = Field(None, max_length=64, description="昵称（选填，为空自动生成）")
+    avatar_url: Optional[str] = None
+    activity_level: int = Field(default=1, ge=0, le=2)
+    daily_comment_limit: int = Field(default=10, ge=1, le=100)
+    daily_like_limit: int = Field(default=30, ge=1, le=200)
+    remark: Optional[str] = None
+
+
+class UserUpdateRequest(BaseModel):
+    nickname: Optional[str] = Field(None, min_length=1, max_length=64)
+    password: Optional[str] = Field(None, min_length=6, max_length=64)
+    avatar_url: Optional[str] = None
+    real_name: Optional[str] = None
+    sex: Optional[int] = None
+    description: Optional[str] = None
+    email: Optional[str] = None
+    activity_level: Optional[int] = Field(None, ge=0, le=2)
+    daily_comment_limit: Optional[int] = Field(None, ge=1, le=100)
+    daily_like_limit: Optional[int] = Field(None, ge=1, le=200)
+    remark: Optional[str] = None
+    is_enabled: Optional[int] = None
+    sync_to_platform: bool = False
+
+
+class UserResponse(BaseModel):
+    id: int
+    nickname: str
+    account: str
+    avatar_url: Optional[str]
+    real_name: Optional[str] = None
+    sex: int = 0
+    platform_uid: Optional[str] = None
+    status: int
+    status_label: str
+    activity_level: int
+    activity_label: str
+    daily_comment_limit: int
+    daily_like_limit: int
+    today_comment_count: int
+    today_like_count: int
+    total_interactions: int
+    last_login_at: Optional[datetime]
+    last_interact_at: Optional[datetime]
+    remark: Optional[str]
+    is_enabled: int
+    created_at: datetime
+    personality: Optional[dict] = None
+
+    class Config:
+        from_attributes = True
+
+
+class UserBatchRequest(BaseModel):
+    user_ids: List[int]
+    action: str  # enable/disable/logout/delete
+
+
+# ===== 人格 =====
+class PersonalityUpdateRequest(BaseModel):
+    character_type: Optional[str] = None
+    language_style: Optional[str] = None
+    interest_tags: Optional[List[str]] = None
+    interact_tendency: Optional[str] = None
+    word_count_min: Optional[int] = Field(None, ge=10, le=500)
+    word_count_max: Optional[int] = Field(None, ge=10, le=1000)
+    personality_desc: Optional[str] = None
+
+
+class PersonalityResponse(BaseModel):
+    id: int
+    user_id: int
+    character_type: Optional[str]
+    language_style: Optional[str]
+    interest_tags: Optional[List[str]]
+    interact_tendency: Optional[str]
+    word_count_min: int
+    word_count_max: int
+    personality_desc: Optional[str]
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+# ===== 互动记录 =====
+class InteractionQueryParams(BaseModel):
+    page: int = Field(default=1, ge=1)
+    page_size: int = Field(default=20, ge=1, le=100)
+    user_id: Optional[int] = None
+    interact_type: Optional[str] = None
+    status: Optional[int] = None
+    start_date: Optional[str] = None
+    end_date: Optional[str] = None
+    keyword: Optional[str] = None
+
+
+class InteractionResponse(BaseModel):
+    id: int
+    user_id: int
+    user_nickname: Optional[str]
+    user_account: Optional[str]
+    article_id: Optional[str]
+    article_title: Optional[str]
+    interact_type: str
+    interact_type_label: str
+    content: Optional[str]
+    token_consumed: int
+    status: int
+    status_label: str
+    error_msg: Optional[str]
+    retry_count: int
+    executed_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+# ===== AI模型配置 =====
+class AIModelCreateRequest(BaseModel):
+    model_name: str = Field(..., min_length=1, max_length=64)
+    provider: str = Field(..., pattern="^(openai|zhipu|wenxin|qianwen|local)$")
+    api_base_url: Optional[str] = None
+    api_key: Optional[str] = None
+    model_version: Optional[str] = None
+    temperature: float = Field(default=0.7, ge=0.0, le=2.0)
+    max_tokens: int = Field(default=1000, ge=1, le=32000)
+    timeout_seconds: int = Field(default=30, ge=5, le=300)
+    is_default: int = Field(default=0, ge=0, le=1)
+
+
+class AIModelUpdateRequest(BaseModel):
+    model_name: Optional[str] = None
+    api_base_url: Optional[str] = None
+    api_key: Optional[str] = None
+    model_version: Optional[str] = None
+    temperature: Optional[float] = Field(None, ge=0.0, le=2.0)
+    max_tokens: Optional[int] = Field(None, ge=1, le=32000)
+    timeout_seconds: Optional[int] = Field(None, ge=5, le=300)
+    is_default: Optional[int] = None
+    is_enabled: Optional[int] = None
+
+
+class AIModelResponse(BaseModel):
+    id: int
+    model_name: str
+    provider: str
+    api_base_url: Optional[str]
+    has_api_key: bool
+    model_version: Optional[str]
+    temperature: float
+    max_tokens: int
+    timeout_seconds: int
+    is_default: int
+    is_enabled: int
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class AIModelTestRequest(BaseModel):
+    model_id: int
+    test_prompt: str = "你好，请简单介绍一下自己。"
+
+
+# ===== 系统配置 =====
+class SystemConfigUpdateRequest(BaseModel):
+    configs: dict
+
+
+# ===== 数据统计 =====
+class DashboardResponse(BaseModel):
+    user_stats: dict
+    today_interactions: dict
+    monthly_stats: dict
+    token_stats: dict
+    system_status: dict
+    online_users: int
+
+
+# ===== 调度配置 =====
+class SchedulerConfigRequest(BaseModel):
+    interact_time_start: Optional[str] = None
+    interact_time_end: Optional[str] = None
+    interact_interval_min: Optional[int] = None
+    interact_interval_max: Optional[int] = None
+    max_concurrent_users: Optional[int] = None
+    daily_token_limit: Optional[int] = None
+    comment_probability: Optional[float] = None
+    reply_probability: Optional[float] = None
+    like_probability: Optional[float] = None
+    collect_probability: Optional[float] = None
+    forward_probability: Optional[float] = None
+    scheduler_enabled: Optional[bool] = None
--- a/backend/app/schemas/init.pybuckup
+++ b/backend/app/schemas/init.pybuckup
@@ -0,0 +1,215 @@
+"""Pydantic数据模型 - 请求/响应模式"""
+from datetime import datetime
+from typing import Optional, List, Any
+from pydantic import BaseModel, Field
+
+
+# ===== 通用响应 =====
+class ApiResponse(BaseModel):
+    code: int = 200
+    message: str = "success"
+    data: Any = None
+
+
+class PageResult(BaseModel):
+    total: int
+    page: int
+    page_size: int
+    items: List[Any]
+
+
+# ===== 虚拟用户 =====
+class UserCreateRequest(BaseModel):
+    # 必填
+    account: str = Field(..., min_length=1, max_length=128, description="新闻平台账号（必填）")
+    password: str = Field(..., min_length=6, max_length=64, description="登录密码（必填）")
+    # 选填
+    nickname: Optional[str] = Field(None, max_length=64, description="昵称（选填，为空自动生成）")
+    avatar_url: Optional[str] = None
+    activity_level: int = Field(default=1, ge=0, le=2)
+    daily_comment_limit: int = Field(default=10, ge=1, le=100)
+    daily_like_limit: int = Field(default=30, ge=1, le=200)
+    remark: Optional[str] = None
+
+
+class UserUpdateRequest(BaseModel):
+    nickname: Optional[str] = Field(None, min_length=1, max_length=64)
+    password: Optional[str] = Field(None, min_length=6, max_length=64)
+    avatar_url: Optional[str] = None
+    activity_level: Optional[int] = Field(None, ge=0, le=2)
+    daily_comment_limit: Optional[int] = Field(None, ge=1, le=100)
+    daily_like_limit: Optional[int] = Field(None, ge=1, le=200)
+    remark: Optional[str] = None
+    is_enabled: Optional[int] = None
+
+
+class UserResponse(BaseModel):
+    id: int
+    nickname: str
+    account: str
+    avatar_url: Optional[str]
+    real_name: Optional[str] = None
+    sex: int = 0
+    platform_uid: Optional[str] = None
+    status: int
+    status_label: str
+    activity_level: int
+    activity_label: str
+    daily_comment_limit: int
+    daily_like_limit: int
+    today_comment_count: int
+    today_like_count: int
+    total_interactions: int
+    last_login_at: Optional[datetime]
+    last_interact_at: Optional[datetime]
+    remark: Optional[str]
+    is_enabled: int
+    created_at: datetime
+    personality: Optional[dict] = None
+
+    class Config:
+        from_attributes = True
+
+
+class UserBatchRequest(BaseModel):
+    user_ids: List[int]
+    action: str  # enable/disable/logout/delete
+
+
+# ===== 人格 =====
+class PersonalityUpdateRequest(BaseModel):
+    character_type: Optional[str] = None
+    language_style: Optional[str] = None
+    interest_tags: Optional[List[str]] = None
+    interact_tendency: Optional[str] = None
+    word_count_min: Optional[int] = Field(None, ge=10, le=500)
+    word_count_max: Optional[int] = Field(None, ge=10, le=1000)
+    personality_desc: Optional[str] = None
+
+
+class PersonalityResponse(BaseModel):
+    id: int
+    user_id: int
+    character_type: Optional[str]
+    language_style: Optional[str]
+    interest_tags: Optional[List[str]]
+    interact_tendency: Optional[str]
+    word_count_min: int
+    word_count_max: int
+    personality_desc: Optional[str]
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+# ===== 互动记录 =====
+class InteractionQueryParams(BaseModel):
+    page: int = Field(default=1, ge=1)
+    page_size: int = Field(default=20, ge=1, le=100)
+    user_id: Optional[int] = None
+    interact_type: Optional[str] = None
+    status: Optional[int] = None
+    start_date: Optional[str] = None
+    end_date: Optional[str] = None
+    keyword: Optional[str] = None
+
+
+class InteractionResponse(BaseModel):
+    id: int
+    user_id: int
+    user_nickname: Optional[str]
+    user_account: Optional[str]
+    article_id: Optional[str]
+    article_title: Optional[str]
+    interact_type: str
+    interact_type_label: str
+    content: Optional[str]
+    token_consumed: int
+    status: int
+    status_label: str
+    error_msg: Optional[str]
+    retry_count: int
+    executed_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+# ===== AI模型配置 =====
+class AIModelCreateRequest(BaseModel):
+    model_name: str = Field(..., min_length=1, max_length=64)
+    provider: str = Field(..., pattern="^(openai|zhipu|wenxin|qianwen|local)$")
+    api_base_url: Optional[str] = None
+    api_key: Optional[str] = None
+    model_version: Optional[str] = None
+    temperature: float = Field(default=0.7, ge=0.0, le=2.0)
+    max_tokens: int = Field(default=1000, ge=1, le=32000)
+    timeout_seconds: int = Field(default=30, ge=5, le=300)
+    is_default: int = Field(default=0, ge=0, le=1)
+
+
+class AIModelUpdateRequest(BaseModel):
+    model_name: Optional[str] = None
+    api_base_url: Optional[str] = None
+    api_key: Optional[str] = None
+    model_version: Optional[str] = None
+    temperature: Optional[float] = Field(None, ge=0.0, le=2.0)
+    max_tokens: Optional[int] = Field(None, ge=1, le=32000)
+    timeout_seconds: Optional[int] = Field(None, ge=5, le=300)
+    is_default: Optional[int] = None
+    is_enabled: Optional[int] = None
+
+
+class AIModelResponse(BaseModel):
+    id: int
+    model_name: str
+    provider: str
+    api_base_url: Optional[str]
+    has_api_key: bool
+    model_version: Optional[str]
+    temperature: float
+    max_tokens: int
+    timeout_seconds: int
+    is_default: int
+    is_enabled: int
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class AIModelTestRequest(BaseModel):
+    model_id: int
+    test_prompt: str = "你好，请简单介绍一下自己。"
+
+
+# ===== 系统配置 =====
+class SystemConfigUpdateRequest(BaseModel):
+    configs: dict
+
+
+# ===== 数据统计 =====
+class DashboardResponse(BaseModel):
+    user_stats: dict
+    today_interactions: dict
+    monthly_stats: dict
+    token_stats: dict
+    system_status: dict
+    online_users: int
+
+
+# ===== 调度配置 =====
+class SchedulerConfigRequest(BaseModel):
+    interact_time_start: Optional[str] = None
+    interact_time_end: Optional[str] = None
+    interact_interval_min: Optional[int] = None
+    interact_interval_max: Optional[int] = None
+    max_concurrent_users: Optional[int] = None
+    daily_token_limit: Optional[int] = None
+    comment_probability: Optional[float] = None
+    reply_probability: Optional[float] = None
+    like_probability: Optional[float] = None
+    collect_probability: Optional[float] = None
+    forward_probability: Optional[float] = None
+    scheduler_enabled: Optional[bool] = None
--- a/backend/app/services/init.py
+++ b/backend/app/services/init.py
--- a/backend/app/services/ai_service.py
+++ b/backend/app/services/ai_service.py
@@ -0,0 +1,258 @@
+"""AI服务 - 人格生成、内容创作"""
+import json
+import random
+import re
+from typing import Optional
+import httpx
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, update
+
+from app.models import AIModelConfig, TokenStat
+from app.utils.crypto import decrypt
+from app.core.logger import logger
+from datetime import date
+
+
+class AIService:
+    """AI大模型服务"""
+
+    # 人格候选池
+    CHARACTER_TYPES = ["开朗", "内敛", "毒舌", "温和", "理性", "感性", "幽默", "严谨"]
+    LANGUAGE_STYLES = ["严肃", "幽默", "文艺", "吐槽", "口语化", "学术", "简洁", "丰富"]
+    INTEREST_TAGS_POOL = [
+        "科技", "财经", "娱乐", "体育", "政治", "文化", "教育", "医疗",
+        "汽车", "房产", "旅游", "美食", "军事", "国际", "环保", "农业"
+    ]
+    INTERACT_TENDENCIES = ["爱评论", "爱点赞", "爱收藏", "潜水", "爱转发", "爱回复"]
+
+    async def _get_default_model(self, db: AsyncSession) -> Optional[AIModelConfig]:
+        result = await db.execute(
+            select(AIModelConfig).where(
+                AIModelConfig.is_default == 1, AIModelConfig.is_enabled == 1
+            )
+        )
+        return result.scalar_one_or_none()
+
+    async def _call_api(
+        self, db: AsyncSession, prompt: str, system_prompt: str = None,
+        max_tokens: int = None
+    ) -> tuple[str, int]:
+        """调用AI接口，返回(内容, token数)"""
+        model = await self._get_default_model(db)
+        if not model:
+            # 无模型配置时返回随机预设
+            return "", 0
+
+        api_key = decrypt(model.api_key_enc) if model.api_key_enc else ""
+        base_url = model.api_base_url or "https://api.openai.com/v1"
+        headers = {"Content-Type": "application/json"}
+        if api_key:
+            headers["Authorization"] = f"Bearer {api_key}"
+
+        messages = []
+        if system_prompt:
+            messages.append({"role": "system", "content": system_prompt})
+        messages.append({"role": "user", "content": prompt})
+
+        payload = {
+            "model": model.model_version or "gpt-3.5-turbo",
+            "messages": messages,
+            "temperature": model.temperature,
+            "max_tokens": max_tokens or model.max_tokens,
+        }
+
+        import asyncio as _asyncio
+        last_err = None
+        for attempt in range(3):  # 最多重试3次
+            try:
+                async with httpx.AsyncClient(timeout=model.timeout_seconds) as client:
+                    resp = await client.post(
+                        f"{base_url}/chat/completions",
+                        headers=headers,
+                        json=payload,
+                    )
+                    # 429 限流：等待后重试
+                    if resp.status_code == 429:
+                        wait = 30 * (attempt + 1)  # 30s, 60s, 90s
+                        logger.warning(f"AI接口限流(429)，{wait}s后重试({attempt+1}/3)")
+                        await _asyncio.sleep(wait)
+                        continue
+                    resp.raise_for_status()
+                    data = resp.json()
+                    text = data["choices"][0]["message"]["content"].strip()
+                    tokens = data.get("usage", {}).get("total_tokens", 0)
+                    await self._record_token_usage(db, tokens, data.get("usage", {}), model.model_name)
+                    logger.bind(ai_call=True).info(
+                        f"AI调用成功 model={model.model_name} tokens={tokens}"
+                    )
+                    return text, tokens
+            except Exception as e:
+                last_err = e
+                if attempt < 2:
+                    await _asyncio.sleep(5 * (attempt + 1))
+        logger.error(f"AI调用失败(已重试3次): {last_err}")
+        return "", 0
+
+    async def generate_personality(self, nickname: str, account: str) -> dict:
+        """生成用户人格（含fallback随机生成）"""
+        # 如无AI配置，使用随机生成
+        from app.core.database import AsyncSessionLocal
+        try:
+            async with AsyncSessionLocal() as db:
+                model = await self._get_default_model(db)
+                if not model:
+                    return self._random_personality()
+
+                prompt = f"""请为以下虚拟新闻读者生成一个独特的人格档案，要求真实自然、贴合中国用户特征。
+用户昵称：{nickname}
+
+请严格以JSON格式返回，不要有其他内容：
+{{
+  "character_type": "从[开朗/内敛/毒舌/温和/理性/感性/幽默/严谨]中选一个",
+  "language_style": "从[严肃/幽默/文艺/吐槽/口语化/学术/简洁/丰富]中选一个",
+  "interest_tags": ["兴趣1", "兴趣2", "兴趣3"],
+  "interact_tendency": "从[爱评论/爱点赞/爱收藏/潜水/爱转发/爱回复]中选一个",
+  "word_count_min": 最少字数(10-50整数),
+  "word_count_max": 最多字数(50-200整数),
+  "personality_desc": "一句话描述此人的性格特点（30字以内）"
+}}"""
+                content, _ = await self._call_api(db, prompt, max_tokens=300)
+                if content:
+                    try:
+                        # 提取JSON
+                        json_match = re.search(r'\{.*\}', content, re.DOTALL)
+                        if json_match:
+                            return json.loads(json_match.group())
+                    except Exception:
+                        pass
+                return self._random_personality()
+        except Exception as e:
+            logger.error(f"人格生成失败: {e}")
+            return self._random_personality()
+
+    def _random_personality(self) -> dict:
+        """随机生成人格（无AI时的备用方案）"""
+        interests = random.sample(self.INTEREST_TAGS_POOL, random.randint(2, 4))
+        char = random.choice(self.CHARACTER_TYPES)
+        style = random.choice(self.LANGUAGE_STYLES)
+        tendency = random.choice(self.INTERACT_TENDENCIES)
+        w_min = random.randint(15, 40)
+        w_max = random.randint(60, 150)
+        return {
+            "character_type": char,
+            "language_style": style,
+            "interest_tags": interests,
+            "interact_tendency": tendency,
+            "word_count_min": w_min,
+            "word_count_max": w_max,
+            "personality_desc": f"一个{char}性格、{tendency}的新闻读者",
+        }
+
+    async def generate_comment(
+        self, db: AsyncSession, article_title: str, article_content: str,
+        personality_prompt: str, word_min: int = 20, word_max: int = 80
+    ) -> tuple[str, int]:
+        """生成文章评论"""
+        system_prompt = f"""你是一名真实的社区用户，正在阅读新闻后发表评论。{personality_prompt}
+
+重要规则：
+- 评论必须积极正面、文明友善，绝对不包含任何政治敏感、色情、暴力、侮辱、歧视内容
+- 不要提及具体政治人物、党派、政策批评、社会矛盾等敏感话题
+- 内容围绕文章本身展开，表达个人感受、分享观点、提出建设性问题
+- 语言朴实自然，像普通网友留言，不夸张不煽情"""
+
+        prompt = f"""请根据以下新闻文章写一条评论。
+
+文章标题：{article_title}
+文章摘要：{article_content[:200] if article_content else '（无摘要）'}
+
+要求：
+1. 评论字数 {word_min}~{word_max} 字
+2. 内容积极正面，贴近文章主题
+3. 语气自然真实，符合普通读者口吻
+4. 必须是完整的句子，不能被截断，以句号/感叹号/问号结尾
+5. 只输出评论正文，不要加任何前缀或解释
+
+评论："""
+        return await self._call_api(db, prompt, system_prompt, max_tokens=300)
+
+    async def generate_reply(
+        self, db: AsyncSession, article_title: str, parent_comment: str,
+        personality_prompt: str, word_min: int = 15, word_max: int = 60
+    ) -> tuple[str, int]:
+        """生成回复"""
+        system_prompt = f"""你是一名真实的社区用户。{personality_prompt}
+
+重要规则：回复必须积极正面、文明友善，不含任何敏感违规内容。"""
+        prompt = f"""文章：{article_title}
+原评论：{parent_comment}
+
+请对上面的评论写一条友善自然的回复，{word_min}~{word_max}字，直接输出回复内容。"""
+        return await self._call_api(db, prompt, system_prompt, max_tokens=150)
+
+    async def test_model(self, db: AsyncSession, model_id: int, test_prompt: str) -> dict:
+        """测试模型可用性"""
+        result = await db.execute(select(AIModelConfig).where(AIModelConfig.id == model_id))
+        model = result.scalar_one_or_none()
+        if not model:
+            return {"success": False, "error": "模型不存在"}
+
+        api_key = decrypt(model.api_key_enc) if model.api_key_enc else ""
+        base_url = model.api_base_url or "https://api.openai.com/v1"
+        headers = {"Content-Type": "application/json"}
+        if api_key:
+            headers["Authorization"] = f"Bearer {api_key}"
+
+        payload = {
+            "model": model.model_version or "gpt-3.5-turbo",
+            "messages": [{"role": "user", "content": test_prompt}],
+            "max_tokens": 200,
+        }
+        try:
+            import time
+            start = time.time()
+            async with httpx.AsyncClient(timeout=model.timeout_seconds) as client:
+                resp = await client.post(f"{base_url}/chat/completions", headers=headers, json=payload)
+                resp.raise_for_status()
+                data = resp.json()
+                elapsed = round(time.time() - start, 2)
+                content = data["choices"][0]["message"]["content"]
+                tokens = data.get("usage", {}).get("total_tokens", 0)
+                return {
+                    "success": True, "content": content,
+                    "tokens": tokens, "elapsed_seconds": elapsed,
+                }
+        except Exception as e:
+            return {"success": False, "error": str(e)}
+
+    async def _record_token_usage(
+        self, db: AsyncSession, total: int, usage: dict, model_name: str
+    ):
+        """记录Token消耗"""
+        today = date.today()
+        from sqlalchemy.dialects.mysql import insert as mysql_insert
+        try:
+            existing = await db.execute(
+                select(TokenStat).where(TokenStat.stat_date == today)
+            )
+            stat = existing.scalar_one_or_none()
+            if stat:
+                stat.total_tokens += total
+                stat.prompt_tokens += usage.get("prompt_tokens", 0)
+                stat.completion_tokens += usage.get("completion_tokens", 0)
+                stat.call_count += 1
+            else:
+                stat = TokenStat(
+                    stat_date=today,
+                    model_name=model_name,
+                    total_tokens=total,
+                    prompt_tokens=usage.get("prompt_tokens", 0),
+                    completion_tokens=usage.get("completion_tokens", 0),
+                    call_count=1,
+                )
+                db.add(stat)
+        except Exception as e:
+            logger.error(f"记录Token消耗失败: {e}")
+
+
+ai_service = AIService()
--- a/backend/app/services/news_service.py
+++ b/backend/app/services/news_service.py
@@ -0,0 +1,729 @@
+"""
+新闻平台对接服务
+登录: POST {auth}/open/login/token  (formData)
+签名: 完全对应 sign.js 的实现
+"""
+import uuid
+import hashlib
+import hmac
+from datetime import datetime, timedelta
+from typing import Optional
+import httpx
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, update
+
+from app.models import VirtualUser, SystemConfig, LoginLog
+from app.utils.crypto import decrypt
+from app.core.redis_client import set_session, get_session, delete_session
+from app.core.logger import logger
+
+
+class NewsPlatformService:
+
+    # ─── 配置读取 ──────────────────────────────────────────────
+    async def _cfg(self, db: AsyncSession, key: str, default: str = "") -> str:
+        result = await db.execute(select(SystemConfig).where(SystemConfig.config_key == key))
+        row = result.scalar_one_or_none()
+        return row.config_value if row else default
+
+    async def _biz_url(self, db: AsyncSession) -> str:
+        return await self._cfg(db, "news_platform_base_url", "http://192.168.1.200:63120")
+
+    async def _auth_url(self, db: AsyncSession) -> str:
+        return await self._cfg(db, "auth_base_url", "http://192.168.1.200:60040")
+
+    async def _client(self, db: AsyncSession) -> dict:
+        return {
+            "appId":        await self._cfg(db, "platform_app_id", ""),
+            "accessId":     await self._cfg(db, "platform_access_id", ""),
+            "accessSecret": await self._cfg(db, "platform_access_secret", ""),
+            "clientCode":   await self._cfg(db, "platform_client_code", ""),
+            "orgId":        await self._cfg(db, "platform_org_id", ""),
+        }
+
+    # ─── 签名（完全对应 sign.js 逻辑） ─────────────────────────
+    @staticmethod
+    def _make_sign(params: dict, secret_key: str, sign_type: str = "MD5") -> str:
+        """
+        完全对应 sign.js:
+        1. 所有参数 key 排序
+        2. 过滤掉 signature / accessSecret / 空值 / 空数组
+        3. 拼接 key=value& ... accessSecret=secretKey
+        4. MD5/SHA256 大写
+        """
+        SIGN_KEY   = "signature"
+        SECRET_KEY = "accessSecret"
+
+        keys = sorted(params.keys())
+        str_parts = []
+        for k in keys:
+            if k in (SIGN_KEY, SECRET_KEY):
+                continue
+            v = params.get(k)
+            if v is None or v == "" or v == []:
+                continue
+            if isinstance(v, list):
+                continue
+            str_parts.append(f"{k}={v}")
+
+        sign_str = "&".join(str_parts) + f"&{SECRET_KEY}={secret_key}"
+
+        if sign_type.upper() == "SHA256":
+            return hashlib.sha256(sign_str.encode("utf-8")).hexdigest().upper()
+        else:
+            return hashlib.md5(sign_str.encode("utf-8")).hexdigest().upper()
+
+    @staticmethod
+    def _get_nonce() -> str:
+        import random, math
+        return str(random.random())[2:][: random.randint(8, 12)]
+
+    @staticmethod
+    def _get_timestamp() -> str:
+        """yyyyMMddhhmmss — 注意 sign.js 用小写 hh(12小时制)"""
+        now = datetime.now()
+        # sign.js 用 yyyyMMddhhmmss (12小时制小写hh)
+        return now.strftime("%Y%m%d%I%M%S")
+
+    def _build_form(self, extra: dict, cfg: dict) -> dict:
+        """构建带签名的 formData"""
+        sign_type    = "MD5"
+        sign_version = "1.0"
+        secret_key   = cfg.get("accessSecret", "")
+
+        base = {
+            "appId":       cfg.get("appId", ""),
+            "accessId":    cfg.get("accessId", ""),
+            "timestamp":   self._get_timestamp(),
+            "signType":    sign_type,
+            "signVersion": sign_version,
+            "accessSecret": secret_key,
+            "nonce":       self._get_nonce(),
+        }
+        base.update(extra)
+
+        # 计算签名
+        signature = self._make_sign(base, secret_key, sign_type) if secret_key else ""
+        base["signature"] = signature
+
+        # 移除 accessSecret（不发送到服务器）
+        base.pop("accessSecret", None)
+        return base
+
+    # ─── 登录 ──────────────────────────────────────────────────
+    async def login(self, db: AsyncSession, user: VirtualUser) -> bool:
+        password = decrypt(user.password_enc)
+        if not password:
+            logger.error(f"[登录] {user.account} 密码解密失败")
+            return False
+
+        auth = await self._auth_url(db)
+        cfg  = await self._client(db)
+
+        await db.execute(update(VirtualUser).where(VirtualUser.id == user.id).values(status=1))
+        await db.commit()
+
+        extra = {
+            "username":   user.account,
+            "password":   password,
+            "loginType":  "password",
+            "grantType":  "password",
+            "isRegister": "false",
+        }
+        if cfg.get("clientCode"):
+            extra["clientCode"] = cfg["clientCode"]
+
+        form = self._build_form(extra, cfg)
+
+        exc = None
+        try:
+            async with httpx.AsyncClient(
+                timeout=30,
+                follow_redirects=True,  # 自动跟随 HTTP 重定向
+            ) as c:
+                # 登录接口路径：需要加 /usercenter 前缀（通过网关路由）
+                # auth_base_url 配置为完整前缀，如 https://fat-open.99hui.com/api/usercenter
+                login_url = f"{auth}/open/login/token"
+                resp = await c.post(login_url, data=form)
+
+            # 详细记录原始响应，便于排查
+            logger.info(
+                f"[登录] {user.account} 原始响应: "
+                f"status={resp.status_code} "
+                f"content-type={resp.headers.get('content-type','')} "
+                f"body={resp.text[:500]}"
+            )
+
+            # 防止空响应体崩溃
+            if not resp.text.strip():
+                logger.warning(f"[登录] {user.account} 服务器返回空响应体，接口可能不存在或被重定向")
+                raise ValueError(f"服务器返回空响应 HTTP={resp.status_code}")
+
+            # 尝试解析 JSON
+            try:
+                body = resp.json()
+            except Exception as je:
+                logger.warning(f"[登录] {user.account} 响应非JSON: {resp.text[:200]}")
+                raise ValueError(f"响应非JSON: {resp.text[:100]}")
+
+            if resp.status_code == 200 and body.get("code") in [0, 200]:
+                raw = body.get("data")
+                access_token, platform_uid = self._extract_token(raw)
+
+                if access_token:
+                    sid = str(uuid.uuid4())
+                    # 登录成功后尝试获取用户组织信息
+                    org_id = await self._fetch_org_id(db, access_token, platform_uid, cfg)
+                    if org_id and not cfg.get("orgId"):
+                        # 如果系统没有配置 orgId，则自动保存用户所属组织
+                        await self._save_org_id(db, org_id)
+
+                    # 从登录响应中提取用户信息
+                    user_info = raw.get("userInfo", {}) if isinstance(raw, dict) else {}
+                    sync_nickname  = user_info.get("nickName") or user_info.get("username") or ""
+                    sync_real_name = user_info.get("realName") or ""
+                    sync_sex       = int(user_info.get("sex") or 0)
+                    sync_avatar    = user_info.get("avatar") or ""
+
+                    await set_session(user.id, {
+                        "token":        access_token,
+                        "session_id":   sid,
+                        "platform_uid": platform_uid,
+                        "org_id":       org_id or cfg.get("orgId", ""),
+                        "login_time":   datetime.now().isoformat(),
+                        # 缓存用户信息供 sync 使用
+                        "nickname":     sync_nickname,
+                        "real_name":    sync_real_name,
+                        "sex":          sync_sex,
+                        "avatar":       sync_avatar,
+                    }, expire=86400)
+
+                    # 更新本地数据库，同步平台用户信息
+                    update_vals = dict(
+                        status=2, session_token=access_token,
+                        session_expires_at=datetime.now() + timedelta(hours=24),
+                        last_login_at=datetime.now(),
+                        platform_uid=platform_uid,
+                    )
+                    if sync_nickname:  update_vals["nickname"]  = sync_nickname
+                    if sync_real_name: update_vals["real_name"] = sync_real_name
+                    if sync_sex:       update_vals["sex"]       = sync_sex
+                    if sync_avatar:    update_vals["avatar_url"] = sync_avatar
+                    await db.execute(update(VirtualUser).where(VirtualUser.id == user.id).values(**update_vals))
+                    await db.commit()
+                    await self._write_login_log(db, user, "login", sid)
+                    logger.info(f"✅ [登录] {user.account} 成功 orgId={org_id}")
+                    return True
+
+                logger.warning(f"[登录] {user.account} 无token: {body}")
+            else:
+                logger.warning(f"[登录] {user.account} 失败: HTTP={resp.status_code} {body}")
+
+        except Exception as e:
+            exc = e
+            logger.error(f"[登录] {user.account} 异常: {e}")
+
+        await db.execute(update(VirtualUser).where(VirtualUser.id == user.id).values(status=3))
+        await db.commit()
+        await self._write_login_log(db, user, "fail", error_msg=str(exc or "登录失败"))
+        return False
+
+    async def _fetch_org_id(
+        self, db: AsyncSession, token: str, platform_uid: str, cfg: dict
+    ) -> str:
+        """登录成功后，调用接口获取用户所属组织 orgId"""
+        biz = await self._biz_url(db)
+        headers = self._bearer(token)
+        # 尝试常见的用户信息接口
+        endpoints = [
+            f"/app/user/info",
+            f"/open/user/info",
+            f"/user/info",
+        ]
+        for ep in endpoints:
+            try:
+                form = self._build_form({}, cfg)
+                async with httpx.AsyncClient(timeout=8) as c:
+                    r = await c.get(
+                        f"{biz}{ep}",
+                        headers=headers,
+                        params={k: v for k, v in form.items() if k not in ("username","password")}
+                    )
+                if r.status_code == 200:
+                    d = r.json()
+                    data = d.get("data") or {}
+                    # 从各种可能的字段中提取 orgId
+                    org_id = (
+                        data.get("orgId") or data.get("defaultOrgId") or
+                        data.get("org", {}).get("id") if isinstance(data.get("org"), dict) else None
+                    )
+                    if org_id:
+                        return str(org_id)
+            except Exception as e:
+                logger.debug(f"获取orgId失败({ep}): {e}")
+        return ""
+
+    async def _save_org_id(self, db: AsyncSession, org_id: str):
+        """自动保存获取到的 orgId 到系统配置"""
+        result = await db.execute(
+            select(SystemConfig).where(SystemConfig.config_key == "platform_org_id")
+        )
+        cfg = result.scalar_one_or_none()
+        if cfg:
+            cfg.config_value = org_id
+        else:
+            db.add(SystemConfig(
+                config_key="platform_org_id",
+                config_value=org_id,
+                description="平台组织Id（自动获取）"
+            ))
+        await db.commit()
+        logger.info(f"✅ 自动获取并保存 orgId={org_id}")
+
+    @staticmethod
+    def _extract_token(raw) -> tuple[str, str]:
+        if isinstance(raw, str) and raw:
+            return raw, ""
+        if isinstance(raw, dict):
+            token = (raw.get("access_token") or raw.get("accessToken") or raw.get("token") or "")
+            # openid 是平台用户ID（登录响应里 data.openid = data.userInfo.id）
+            uid = str(
+                raw.get("openid") or
+                raw.get("userId") or raw.get("user_id") or raw.get("id") or
+                (raw.get("userInfo") or {}).get("id") or ""
+            )
+            return token, uid
+        return "", ""
+
+    async def logout(self, db: AsyncSession, user_id: int):
+        user_r = await db.execute(select(VirtualUser).where(VirtualUser.id == user_id))
+        user = user_r.scalar_one_or_none()
+        if user:
+            sess = await get_session(user_id)
+            await self._write_login_log(db, user, "logout",
+                                        sess.get("session_id") if sess else None)
+        await delete_session(user_id)
+        await db.execute(update(VirtualUser).where(VirtualUser.id == user_id).values(
+            status=0, session_token=None, session_expires_at=None))
+        await db.commit()
+
+    async def check_session(self, db: AsyncSession, user: VirtualUser) -> bool:
+        sess = await get_session(user.id)
+        if not sess:
+            return False
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        try:
+            params = self._build_form({}, cfg)
+            params.update({"orgId": cfg["orgId"] or "1", "pageNum": 1, "pageSize": 1, "status": "approved"})
+            async with httpx.AsyncClient(timeout=10) as c:
+                r = await c.get(f"{biz}/news/list", headers=self._bearer(sess["token"]), params=params)
+            if r.status_code == 200 and r.json().get("code") in [0, 200]:
+                return True
+            await self.logout(db, user.id)
+            return False
+        except Exception:
+            return False
+
+    # ─── 新闻列表 ──────────────────────────────────────────────
+    async def get_news_list(self, db, user, count=5, interest_tags=None) -> list:
+        """
+        GET /business/member/square/list  广场数据分页查询
+        type=1 表示新闻，orgId 选填（不填则查全平台新闻，无需配置 orgId）
+        返回字段：id(广场ID), recordId(新闻实际ID), title, orgId, orgName
+        """
+        sess = await get_session(user.id)
+        if not sess:
+            return []
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        org_id = sess.get("org_id") or cfg.get("orgId") or ""
+
+        # 先查总数，再随机翻页，避免每次都取第1页相同内容
+        import math
+        # 第一次查询获取总页数
+        first_params = self._build_form({
+            "pageNum":        1,
+            "pageSize":       50,
+            "type":           "1",
+            "isPlatformShow": "true",
+            "isAdmin":        "false",
+        }, cfg)
+        if org_id:
+            first_params["orgId"] = org_id
+
+        total_pages = 1
+        try:
+            async with httpx.AsyncClient(timeout=10) as _c:
+                _r = await _c.get(
+                    f"{biz}/business/member/square/list",
+                    headers=self._bearer(sess["token"]),
+                    params=first_params
+                )
+            _d = _r.json()
+            if _d.get("code") in [0, 200]:
+                total_size = _d.get("data", {}).get("totalSize", 0)
+                total_pages = max(1, math.ceil(total_size / 50))
+        except Exception:
+            pass
+
+        # 随机选择一页
+        import random as _random
+        rand_page = _random.randint(1, min(total_pages, 10))  # 最多取前10页随机
+
+        params = self._build_form({
+            "pageNum":        rand_page,
+            "pageSize":       50,
+            "type":           "1",
+            "isPlatformShow": "true",
+            "isAdmin":        "false",
+        }, cfg)
+        if org_id:
+            params["orgId"] = org_id     # 选填，有则按组织过滤
+
+        try:
+            async with httpx.AsyncClient(timeout=15) as c:
+                r = await c.get(
+                    f"{biz}/business/member/square/list",
+                    headers=self._bearer(sess["token"]),
+                    params=params
+                )
+            if r.status_code == 200:
+                d = r.json()
+                if d.get("code") in [0, 200]:
+                    nd = d.get("data", {})
+                    items = nd.get("data") or nd.get("list") or nd.get("records") or []
+                    # 过滤本人发布的文章
+                    platform_uid = sess.get("platform_uid", "")
+                    if platform_uid:
+                        items = [x for x in items if x.get("createUser") != platform_uid]
+                    # 过滤已知无效新闻（详情为空或不存在）
+                    INVALID_IDS = {
+                        "1965670408480907266","2029092495693975554","1960652956793597953",
+                        "1960651987045347330","1960596408620838914","1960596083193180161",
+                        "1960595664341594113",
+                    }
+                    items = [x for x in items
+                             if (x.get("recordId") or x.get("id")) not in INVALID_IDS]
+                    logger.info(f"[广场新闻] {user.account} 获取到 {len(items)} 条（已过滤本人+无效文章）")
+                    import random as _rand
+                    return _rand.sample(items, min(count, len(items))) if items else []
+                logger.warning(f"[广场新闻] {user.account} code={d.get('code')} msg={d.get('message')}")
+        except Exception as e:
+            logger.error(f"[广场新闻] {user.account}: {e}")
+        return []
+
+    async def read_news(self, db, user, news_id: str) -> bool:
+        sess = await get_session(user.id)
+        if not sess:
+            return False
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        try:
+            async with httpx.AsyncClient(timeout=10) as c:
+                r = await c.patch(
+                    f"{biz}/news/read/{news_id}",
+                    headers=self._bearer(sess["token"]),
+                    data=self._build_form({}, cfg),
+                )
+            return r.status_code == 200
+        except Exception:
+            return False
+
+    async def post_comment(self, db, user, news_id, news_title, content, news_author_id="", org_id="") -> tuple[bool, str]:
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "未登录"
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        uid = sess.get("platform_uid", "")
+        # org_id 优先取文章自带的（从广场数据获取），否则取 session/配置
+        final_org_id = org_id or sess.get("org_id") or cfg.get("orgId") or ""
+        body = {
+            "module": "news", "topicId": news_id, "title": news_title,
+            "content": content, "orgId": final_org_id,
+            "toUserId": news_author_id or uid, "userId": uid,
+            "userName": user.nickname, "avatar": user.avatar_url or "",
+        }
+        return await self._json_post(f"{biz}/message/comment", self._bearer(sess["token"]), body)
+
+    async def post_reply(self, db, user, news_id, comment_id, content) -> tuple[bool, str]:
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "未登录"
+        biz = await self._biz_url(db)
+        uid = sess.get("platform_uid", "")
+        body = {
+            "module": "news", "topicId": news_id, "commentId": comment_id,
+            "commentUserId": uid, "content": content,
+            "fromUserName": user.nickname, "avatar": user.avatar_url or "",
+        }
+        return await self._json_post(f"{biz}/message/comment/reply", self._bearer(sess["token"]), body)
+
+    async def get_comments(self, db, user, news_id) -> list:
+        sess = await get_session(user.id)
+        if not sess:
+            return []
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        try:
+            params = self._build_form({"module": "news", "topicId": news_id, "pageNum": 1, "pageSize": 20}, cfg)
+            async with httpx.AsyncClient(timeout=10) as c:
+                r = await c.get(f"{biz}/message/comment", headers=self._bearer(sess["token"]), params=params)
+            if r.status_code == 200:
+                return r.json().get("data", {}).get("data") or []
+        except Exception:
+            pass
+        return []
+
+    async def like_news(self, db, user, news_id, org_id="", to_user_id="", title="") -> tuple[bool, str]:
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "未登录"
+        biz = await self._biz_url(db)
+        uid = sess.get("platform_uid", "")
+        body = {
+            "module":    "news",
+            "topicId":   news_id,
+            "userId":    uid,
+            "toUserId":  to_user_id or uid,
+            "orgId":     org_id or sess.get("org_id", "") or "",
+            "title":     title,
+        }
+        return await self._json_post(f"{biz}/message/praise", self._bearer(sess["token"]), body)
+
+    async def collect_news(self, db, user, news_id, org_id="", to_user_id="", title="") -> tuple[bool, str]:
+        """收藏新闻：复用点赞接口（平台收藏=点赞同一接口）"""
+        return await self.like_news(db, user, news_id, org_id=org_id, to_user_id=to_user_id, title=title)
+
+    async def forward_news(self, db, user, news_id) -> tuple[bool, str]:
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "未登录"
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        org_id = sess.get("org_id") or cfg.get("orgId") or "1"
+        headers = self._bearer(sess["token"])
+        try:
+            async with httpx.AsyncClient(timeout=8) as c:
+                await c.get(f"{biz}/news/share/wechat/{news_id}", headers=headers,
+                            params=self._build_form({}, cfg))
+        except Exception:
+            pass
+        try:
+            async with httpx.AsyncClient(timeout=15) as c:
+                r = await c.post(
+                    f"{biz}/points/forward/news/{org_id}",
+                    headers=headers,
+                    data=self._build_form({}, cfg),
+                )
+            return self._ok(r)
+        except Exception as e:
+            return False, str(e)
+
+    @staticmethod
+    def _bearer(token: str) -> dict:
+        return {"Authorization": f"Bearer {token}", "Content-Type": "application/json"}
+
+    @staticmethod
+    def _ok(resp: httpx.Response) -> tuple[bool, str]:
+        if resp.status_code in [200, 201]:
+            try:
+                d = resp.json()
+                if d.get("code") in [0, 200]:
+                    return True, ""
+                return False, d.get("message") or "业务失败"
+            except Exception:
+                return True, ""
+        return False, f"HTTP {resp.status_code}"
+
+    async def _json_post(self, url, headers, body) -> tuple[bool, str]:
+        try:
+            async with httpx.AsyncClient(timeout=15) as c:
+                r = await c.post(url, json=body, headers=headers)
+            return self._ok(r)
+        except Exception as e:
+            return False, str(e)
+
+    async def _write_login_log(self, db, user, action, session_id=None, error_msg=None):
+        try:
+            log = LoginLog(
+                user_id=user.id, user_account=user.account,
+                action=action, session_id=session_id, error_msg=error_msg,
+            )
+            db.add(log)
+            await db.commit()
+        except Exception:
+            pass
+
+
+    # ─── 取消互动 ────────────────────────────────────────────────────
+    async def cancel_like(self, db, user, news_id: str, org_id: str = "", to_user_id: str = "", title: str = "") -> tuple[bool, str]:
+        """DELETE /message/praise/cancel  取消点赞"""
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "未登录"
+        biz = await self._biz_url(db)
+        uid = sess.get("platform_uid", "")
+        body = {
+            "module":   "news",
+            "topicId":  news_id,
+            "userId":   uid,
+            "toUserId": to_user_id or uid,
+            "orgId":    org_id or sess.get("org_id", "") or "",
+            "title":    title,
+        }
+        try:
+            async with httpx.AsyncClient(timeout=10) as c:
+                r = await c.delete(
+                    f"{biz}/message/praise/cancel",
+                    json=body,
+                    headers=self._bearer(sess["token"])
+                )
+            d = r.json()
+            if d.get("code") in [0, 200]:
+                return True, ""
+            return False, d.get("message", "取消点赞失败")
+        except Exception as e:
+            return False, str(e)
+
+    async def cancel_comment(self, db, user, news_id: str, comment_id: str) -> tuple[bool, str]:
+        """DELETE /message/comment/{topicId}/{id}  删除评论"""
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "未登录"
+        biz = await self._biz_url(db)
+        cfg = await self._client(db)
+        # 签名参数放 formData，路径里是 topicId 和 comment_id
+        params = self._build_form({}, cfg)
+        try:
+            async with httpx.AsyncClient(timeout=10) as c:
+                r = await c.delete(
+                    f"{biz}/message/comment/{news_id}/{comment_id}",
+                    headers=self._bearer(sess["token"]),
+                    params=params
+                )
+            d = r.json()
+            if d.get("code") in [0, 200]:
+                return True, ""
+            return False, d.get("message", "删除评论失败")
+        except Exception as e:
+            return False, str(e)
+
+    async def cancel_collect(self, db, user, news_id: str, org_id: str = "", to_user_id: str = "", title: str = "") -> tuple[bool, str]:
+        """取消收藏（复用取消点赞接口）"""
+        return await self.cancel_like(db, user, news_id, org_id=org_id, to_user_id=to_user_id, title=title)
+
+    # ─── 修改目标系统用户信息 ─────────────────────────────────────
+    async def update_user_profile(
+        self, db: AsyncSession, user: VirtualUser,
+        nick_name: str = None, real_name: str = None,
+        sex: int = None, avatar: str = None,
+        description: str = None, email: str = None,
+    ) -> tuple[bool, str]:
+        """
+        调用 POST /usercenter/user/change/userInfo 修改用户信息
+        支持：昵称、真实姓名、性别、头像、简介、邮箱
+        同时同步更新本地数据库
+        """
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "用户未登录，请先登录"
+
+        auth = await self._auth_url(db)
+        cfg  = await self._client(db)
+        token = sess.get("token", "")
+        platform_uid = sess.get("platform_uid", "")
+
+        if not platform_uid:
+            return False, "缺少平台用户ID，请重新登录"
+
+        # 构建请求体（只传有值的字段）
+        # 构建请求体，确保至少有 nickName 字段（平台 SQL 要求 SET 子句不为空）
+        body = {
+            "id":       platform_uid,
+            "nickName": nick_name if nick_name is not None else (user.nickname or ""),
+            "realName": real_name if real_name is not None else (user.real_name or ""),
+            "sex":      sex if sex is not None else (user.sex or 0),
+        }
+        if avatar      is not None: body["avatar"]      = avatar
+        if description is not None: body["description"] = description
+        if email       is not None: body["email"]       = email
+
+        # 使用 PATCH /v2/users/current 接口（支持修改昵称）
+        headers = dict(self._bearer(token))
+        headers["Content-Type"] = "application/json"
+
+        try:
+            async with httpx.AsyncClient(timeout=15) as c:
+                r = await c.patch(
+                    f"{auth}/v2/users/current",
+                    json=body,
+                    headers=headers,
+                )
+            d = r.json()
+            if d.get("code") in [0, 200]:
+                # 同步到本地数据库
+                local_vals = {}
+                if nick_name   is not None: local_vals["nickname"]  = nick_name
+                if real_name   is not None: local_vals["real_name"] = real_name
+                if sex         is not None: local_vals["sex"]       = sex
+                if avatar      is not None: local_vals["avatar_url"] = avatar
+                if local_vals:
+                    from sqlalchemy import update
+                    await db.execute(update(VirtualUser).where(
+                        VirtualUser.id == user.id).values(**local_vals))
+                    await db.commit()
+                logger.info(f"✅ 用户 {user.account} 信息已同步到目标系统")
+                return True, ""
+            err = d.get("message") or f"code={d.get('code')}"
+            logger.warning(f"[修改用户信息] {user.account} 失败: {err} body={r.text[:200]}")
+            return False, err
+        except Exception as e:
+            logger.warning(f"[修改用户信息] {user.account} 异常: {e}")
+            return False, str(e)
+
+    async def upload_avatar(
+        self, db: AsyncSession, user: VirtualUser, file_bytes: bytes, filename: str
+    ) -> tuple[bool, str]:
+        """
+        上传头像图片到平台 filecenter，返回图片 URL
+        POST /filecenter/fileUpload (multipart/form-data)
+        """
+        sess = await get_session(user.id)
+        if not sess:
+            return False, "用户未登录"
+
+        cfg   = await self._client(db)
+        token = sess.get("token", "")
+
+        # filecenter 服务地址
+        biz_base = await self._biz_url(db)
+        # filecenter 与 huihuibusiness 同网关，替换服务名
+        filecenter_url = biz_base.replace("/huihuibusiness", "/filecenter")
+
+        sign_params = self._build_form({"module": "userInfo", "service": "kccloud"}, cfg)
+        headers = {"Authorization": f"Bearer {token}"}
+
+        try:
+            import mimetypes
+            mime = mimetypes.guess_type(filename)[0] or "image/jpeg"
+            files = {"file": (filename, file_bytes, mime)}
+            async with httpx.AsyncClient(timeout=30) as c:
+                r = await c.post(
+                    f"{filecenter_url}/fileUpload",
+                    files=files,
+                    data=sign_params,
+                    headers=headers,
+                )
+            d = r.json()
+            if d.get("code") in [0, 200]:
+                url = d.get("data") or d.get("url") or ""
+                if isinstance(url, dict):
+                    url = url.get("url") or url.get("path") or ""
+                logger.info(f"✅ 头像上传成功: {url}")
+                return True, url
+            return False, d.get("message") or "上传失败"
+        except Exception as e:
+            return False, str(e)
+news_service = NewsPlatformService()
--- a/backend/app/services/scheduler.py
+++ b/backend/app/services/scheduler.py
@@ -0,0 +1,402 @@
+"""调度服务 - 定时自动互动、会话校验"""
+import random
+import asyncio
+from datetime import datetime, date
+from typing import Optional
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from apscheduler.triggers.interval import IntervalTrigger
+from sqlalchemy import select, update, func
+
+from app.core.database import AsyncSessionLocal
+from app.core.logger import logger
+from app.models import VirtualUser, UserPersonality, InteractionRecord, SystemConfig
+
+
+class SchedulerService:
+    def __init__(self):
+        self.scheduler = AsyncIOScheduler(timezone="Asia/Shanghai")
+        self._running = False
+
+    async def run_once_now(self, db=None):
+        """立即执行一次互动，不受时间段限制"""
+        from sqlalchemy import select
+        from app.core.database import AsyncSessionLocal
+        logger.info("⚡ 立即触发互动任务")
+        async with AsyncSessionLocal() as session:
+            result_r = await session.execute(
+                select(VirtualUser).where(
+                    VirtualUser.status == 2,
+                    VirtualUser.is_enabled == 1,
+                )
+            )
+            users = result_r.scalars().all()
+            if not users:
+                return {"message": "没有已登录的用户", "triggered": 0}
+            import random
+            selected = random.sample(users, min(5, len(users)))
+            import asyncio
+            tasks = [self._execute_user_interaction(u.id) for u in selected]
+            await asyncio.gather(*tasks, return_exceptions=True)
+            return {"triggered": len(selected), "users": [u.account for u in selected]}
+
+    async def start(self):
+        if self._running:
+            return
+        # 会话校验：每10分钟
+        self.scheduler.add_job(
+            self._check_sessions, IntervalTrigger(minutes=10),
+            id="check_sessions", replace_existing=True
+        )
+        # 互动任务：每5分钟检查一次（内部判断是否在活跃时间段）
+        self.scheduler.add_job(
+            self._run_interactions, IntervalTrigger(minutes=5),
+            id="run_interactions", replace_existing=True
+        )
+        # 每日零点重置计数
+        self.scheduler.add_job(
+            self._daily_reset, "cron", hour=16, minute=0,  # 北京时间 00:00 = UTC 16:00
+            id="daily_reset", replace_existing=True
+        )
+        self.scheduler.start()
+        self._running = True
+        logger.info("调度器已启动")
+        # 记录启动时间
+        async with AsyncSessionLocal() as db:
+            await self._set_config(db, "system_start_time", datetime.now().isoformat())
+
+    async def stop(self):
+        if self.scheduler.running:
+            self.scheduler.shutdown(wait=False)
+        self._running = False
+
+    async def _get_config(self, db, key: str, default=None):
+        result = await db.execute(select(SystemConfig).where(SystemConfig.config_key == key))
+        cfg = result.scalar_one_or_none()
+        return cfg.config_value if cfg else default
+
+    async def _set_config(self, db, key: str, value: str):
+        result = await db.execute(select(SystemConfig).where(SystemConfig.config_key == key))
+        cfg = result.scalar_one_or_none()
+        if cfg:
+            cfg.config_value = value
+        else:
+            db.add(SystemConfig(config_key=key, config_value=value))
+        await db.commit()
+
+    async def _check_sessions(self):
+        """定时校验登录状态"""
+        from app.services.news_service import news_service
+        async with AsyncSessionLocal() as db:
+            result = await db.execute(
+                select(VirtualUser).where(VirtualUser.status == 2, VirtualUser.is_enabled == 1)
+            )
+            users = result.scalars().all()
+            for user in users:
+                try:
+                    valid = await news_service.check_session(db, user)
+                    if not valid:
+                        logger.warning(f"用户 {user.account} 会话失效，尝试重登")
+                        await news_service.login(db, user)
+                except Exception as e:
+                    logger.error(f"会话校验异常 {user.account}: {e}")
+
+    async def _run_interactions(self):
+        """执行互动任务"""
+        async with AsyncSessionLocal() as db:
+            # 检查调度器开关
+            enabled = await self._get_config(db, "scheduler_enabled", "true")
+            if enabled != "true":
+                return
+
+            # 检查Token限额
+            token_limited = await self._get_config(db, "token_limit_reached", "false")
+            if token_limited == "true":
+                return
+
+            # 检查互动时间段（北京时间 UTC+8）
+            from datetime import timezone, timedelta
+            tz_beijing = timezone(timedelta(hours=8))
+            now_bj = datetime.now(tz_beijing)
+            now_time = now_bj.strftime("%H:%M")
+            start_str = await self._get_config(db, "interact_time_start", "08:00")
+            end_str   = await self._get_config(db, "interact_time_end", "22:00")
+            if not (start_str <= now_time <= end_str):
+                logger.debug(f"[调度] 当前北京时间 {now_time} 不在互动时段 {start_str}-{end_str}")
+                return
+
+            # 获取最小互动间隔（秒）
+            min_interval = int(await self._get_config(db, "interact_min_interval", "300"))
+
+            # 获取最大并发
+            max_concurrent = int(await self._get_config(db, "max_concurrent_users", "5"))
+
+            # 获取已登录、启用的用户
+            query = select(VirtualUser).where(
+                VirtualUser.status == 2,
+                VirtualUser.is_enabled == 1,
+            )
+            if max_concurrent > 0:
+                query = query.limit(max_concurrent)
+            result = await db.execute(query)
+            all_users = result.scalars().all()
+
+            # 没有已登录用户时，尝试登录未登录用户
+            if not all_users:
+                await self._try_login_users(db)
+                return
+
+            # 检查互动间隔：过滤掉最近 min_interval 秒内已互动的用户
+            now_utc = datetime.utcnow()
+            eligible = []
+            for u in all_users:
+                if u.last_interact_at is None:
+                    eligible.append(u)
+                else:
+                    elapsed = (now_utc - u.last_interact_at).total_seconds()
+                    if elapsed >= min_interval:
+                        eligible.append(u)
+
+            if not eligible:
+                logger.debug(f"[调度] 所有用户在 {min_interval}s 内已互动，跳过本次")
+                return
+
+            logger.info(f"[调度] {len(eligible)}/{len(all_users)} 个用户满足间隔要求，开始互动")
+
+            # 随机选取用户执行互动
+            for user in eligible:
+                if random.random() < 0.6:
+                    asyncio.create_task(self._execute_user_interaction(user.id))
+
+    async def _try_login_users(self, db):
+        """尝试登录未登录的用户"""
+        from app.services.news_service import news_service
+        result = await db.execute(
+            select(VirtualUser).where(
+                VirtualUser.status.in_([0, 3]),
+                VirtualUser.is_enabled == 1
+            ).limit(3)
+        )
+        users = result.scalars().all()
+        for user in users:
+            try:
+                await news_service.login(db, user)
+                await asyncio.sleep(2)
+            except Exception as e:
+                logger.error(f"自动登录失败 {user.account}: {e}")
+
+    async def _execute_user_interaction(self, user_id: int):
+        """执行单用户互动 - 基于真实接口"""
+        from app.services.news_service import news_service
+        from app.services.ai_service import ai_service
+
+        async with AsyncSessionLocal() as db:
+            try:
+                user_result = await db.execute(select(VirtualUser).where(VirtualUser.id == user_id))
+                user = user_result.scalar_one_or_none()
+                if not user or user.status != 2:
+                    return
+
+                # 检查今日评论限额
+                can_comment = True
+                if user.today_comment_count >= user.daily_comment_limit:
+                    can_comment = False
+                    logger.info(f'用户 ' + user.account + ' 今日评论已达上限，仍执行点赞/收藏/转发')
+
+                # 获取人格
+                from app.models import UserPersonality
+                p_result = await db.execute(
+                    select(UserPersonality).where(UserPersonality.user_id == user_id)
+                )
+                personality = p_result.scalar_one_or_none()
+                interest_tags = personality.interest_tags if personality else []
+
+                # 获取新闻列表（基于接口 GET /news/list）
+                articles = await news_service.get_news_list(
+                    db, user, count=5, interest_tags=interest_tags
+                )
+                if not articles:
+                    # 尝试从 session 获取 org_id 再试一次
+                    from app.core.redis_client import get_session as _get_sess
+                    sess = await _get_sess(user.id)
+                    org_from_sess = sess.get("org_id", "") if sess else ""
+                    if org_from_sess:
+                        articles = await news_service.get_news_list(
+                            db, user, count=5, interest_tags=interest_tags
+                        )
+                    if not articles:
+                        logger.warning(
+                            f"用户 {user.account} 获取新闻列表为空 "
+                            f"(orgId={await news_service._cfg(db, 'platform_org_id', '')})"
+                        )
+                        return
+
+                article = random.choice(articles)
+                # 接口返回字段: id/newsTitle/content/digest/createUser
+                # 广场接口字段：recordId=新闻实际ID, id=广场记录ID, title=标题
+                news_id    = str(article.get("recordId") or article.get("id", ""))
+                news_title = article.get("title") or article.get("newsTitle") or "未知文章"
+                news_content = article.get("content") or article.get("digest") or news_title
+                news_author  = str(article.get("createUser") or "")
+                # 从广场数据中顺带获取 orgId
+                article_org_id = str(article.get("orgId") or "")
+
+                if not news_id:
+                    return
+
+                # 读取互动概率
+                comment_prob = float(await self._get_config_from_db(db, "comment_probability", "0.4"))
+                reply_prob   = float(await self._get_config_from_db(db, "reply_probability",   "0.2"))
+                like_prob    = float(await self._get_config_from_db(db, "like_probability",    "0.6"))
+                collect_prob = float(await self._get_config_from_db(db, "collect_probability", "0.3"))
+                forward_prob = float(await self._get_config_from_db(db, "forward_probability", "0.15"))
+
+                interactions_done = []
+
+                # ① 先记录阅读（每次必做，模拟真实用户打开文章）
+                await news_service.read_news(db, user, news_id)
+
+                # ② 点赞
+                if random.random() < like_prob:
+                    success, err = await news_service.like_news(db, user, news_id, org_id=article_org_id, to_user_id=news_author, title=news_title)
+                    await self._save_record(db, user, news_id, news_title, "like", None, 0, success, err)
+                    if success:
+                        interactions_done.append("like")
+                        await self._incr_total(db, user_id)
+
+                # ③ 收藏（阅读+点赞组合模拟）
+                if random.random() < collect_prob:
+                    success, err = await news_service.collect_news(db, user, news_id, org_id=article_org_id, to_user_id=news_author, title=news_title)
+                    await self._save_record(db, user, news_id, news_title, "collect", None, 0, success, err)
+                    if success:
+                        interactions_done.append("collect")
+
+                # ④ 转发（调用 /points/forward/news/{orgId}）
+                if random.random() < forward_prob:
+                    success, err = await news_service.forward_news(db, user, news_id)
+                    await self._save_record(db, user, news_id, news_title, "forward", None, 0, success, err)
+                    if success:
+                        interactions_done.append("forward")
+                        await self._incr_total(db, user_id)
+
+                # ⑤ 评论（AI生成内容，调用 POST /message/comment）
+                if can_comment and random.random() < comment_prob and personality:
+                    style_prompt = personality.comment_style_prompt or ""
+                    # 字数上限最多80字，避免超出 max_tokens 被截断
+                    safe_word_max = min(personality.word_count_max, 80)
+                    comment_text, tokens = await ai_service.generate_comment(
+                        db, news_title, news_content,
+                        style_prompt, personality.word_count_min, safe_word_max
+                    )
+                    if comment_text:
+                        success, err = await news_service.post_comment(
+                            db, user, news_id, news_title, comment_text,
+                            news_author_id=news_author, org_id=article_org_id
+                        )
+                        await self._save_record(
+                            db, user, news_id, news_title, "comment",
+                            comment_text, tokens, success, err
+                        )
+                        if success:
+                            interactions_done.append("comment")
+                            await db.execute(
+                                update(VirtualUser).where(VirtualUser.id == user_id).values(
+                                    today_comment_count=VirtualUser.today_comment_count + 1,
+                                    total_interactions=VirtualUser.total_interactions + 1,
+                                    last_interact_at=datetime.utcnow()
+                                )
+                            )
+
+                            # ⑥ 回复评论（评论成功后，随机回复别人的评论）
+                            if random.random() < reply_prob:
+                                existing = await news_service.get_comments(db, user, news_id)
+                                if existing:
+                                    target = random.choice(existing)
+                                    cid = str(target.get("id") or target.get("commentId") or "")
+                                    parent_content = target.get("content") or ""
+                                    if cid:
+                                        reply_text, r_tokens = await ai_service.generate_reply(
+                                            db, news_title, parent_content,
+                                            style_prompt,
+                                            personality.word_count_min,
+                                            personality.word_count_max
+                                        )
+                                        if reply_text:
+                                            r_ok, r_err = await news_service.post_reply(
+                                                db, user, news_id, cid, reply_text
+                                            )
+                                            await self._save_record(
+                                                db, user, news_id, news_title, "reply",
+                                                reply_text, r_tokens, r_ok, r_err,
+                                                parent_comment_id=cid
+                                            )
+                                            if r_ok:
+                                                interactions_done.append("reply")
+
+                await db.commit()
+                logger.info(f"👤 {user.account} 互动完成: {interactions_done} [新闻: {news_title[:20]}]")
+
+            except Exception as e:
+                logger.error(f"用户 {user_id} 互动异常: {e}")
+
+    async def _incr_total(self, db, user_id: int):
+        await db.execute(
+            update(VirtualUser).where(VirtualUser.id == user_id).values(
+                total_interactions=VirtualUser.total_interactions + 1,
+                last_interact_at=datetime.utcnow()
+            )
+        )
+
+    async def _save_record(
+        self, db, user: VirtualUser, article_id: str, article_title: str,
+        interact_type: str, content: Optional[str], tokens: int,
+        success: bool, error_msg: str, parent_comment_id: str = None,
+        platform_record_id: str = None
+    ):
+        from app.core.redis_client import get_session
+        session = await get_session(user.id)
+        session_id = session.get("session_id") if session else None
+
+        record = InteractionRecord(
+            user_id=user.id,
+            user_nickname=user.nickname,
+            user_account=user.account,
+            article_id=article_id,
+            article_title=article_title,
+            interact_type=interact_type,
+            content=content,
+            parent_comment_id=parent_comment_id,
+            platform_record_id=platform_record_id,
+            session_id=session_id,
+            token_consumed=tokens,
+            status=1 if success else 2,
+            error_msg=error_msg or None,
+            executed_at=datetime.now(),
+        )
+        db.add(record)
+
+    async def _get_config_from_db(self, db, key: str, default: str = "") -> str:
+        result = await db.execute(select(SystemConfig).where(SystemConfig.config_key == key))
+        cfg = result.scalar_one_or_none()
+        return cfg.config_value if cfg else default
+
+    async def _daily_reset(self):
+        """每日零点重置计数"""
+        async with AsyncSessionLocal() as db:
+            await db.execute(
+                update(VirtualUser).values(
+                    today_comment_count=0,
+                    today_like_count=0
+                )
+            )
+            # 重置Token限额标志
+            result = await db.execute(
+                select(SystemConfig).where(SystemConfig.config_key == "token_limit_reached")
+            )
+            cfg = result.scalar_one_or_none()
+            if cfg:
+                cfg.config_value = "false"
+            await db.commit()
+        logger.info("每日计数重置完成")
+
+
+scheduler_service = SchedulerService()
--- a/backend/app/services/stats_service.py
+++ b/backend/app/services/stats_service.py
@@ -0,0 +1,251 @@
+"""数据统计服务"""
+from datetime import datetime, date, timedelta, timezone
+
+def _fmt_dt(dt):
+    """统一输出 UTC 时间，带时区标识，让前端正确解析为 +8"""
+    if dt is None:
+        return None
+    if dt.tzinfo is None:
+        # 数据库存的是 UTC，补上时区信息
+        dt = dt.replace(tzinfo=timezone.utc)
+    return dt.isoformat()
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, func, and_
+
+from app.models import VirtualUser, InteractionRecord, TokenStat, SystemConfig
+from app.core.logger import logger
+
+
+class StatsService:
+
+    async def get_dashboard(self, db: AsyncSession) -> dict:
+        """获取控制台数据"""
+        today = date.today()
+        now = datetime.now()
+        month_start = today.replace(day=1)
+
+        # 用户统计
+        user_stats = await self._get_user_stats(db)
+
+        # 今日互动统计
+        today_stats = await self._get_today_stats(db, today)
+
+        # 本月互动统计
+        monthly_stats = await self._get_monthly_stats(db, month_start, today)
+
+        # Token统计
+        token_stats = await self._get_token_stats(db, today)
+
+        # 系统状态
+        system_status = await self._get_system_status(db, now)
+
+        # 在线用户数
+        online_count_result = await db.execute(
+            select(func.count()).where(VirtualUser.status == 2)
+        )
+        online_count = online_count_result.scalar() or 0
+
+        return {
+            "user_stats": user_stats,
+            "today_interactions": today_stats,
+            "monthly_stats": monthly_stats,
+            "token_stats": token_stats,
+            "system_status": system_status,
+            "online_users": online_count,
+        }
+
+    async def _get_user_stats(self, db: AsyncSession) -> dict:
+        total = await db.execute(select(func.count()).select_from(VirtualUser))
+        normal = await db.execute(select(func.count()).where(VirtualUser.is_enabled == 1))
+        banned = await db.execute(select(func.count()).where(VirtualUser.status == 4))
+        abnormal = await db.execute(select(func.count()).where(VirtualUser.status == 3))
+        return {
+            "total": total.scalar() or 0,
+            "normal": normal.scalar() or 0,
+            "banned": banned.scalar() or 0,
+            "abnormal": abnormal.scalar() or 0,
+        }
+
+    async def _get_today_stats(self, db: AsyncSession, today: date) -> dict:
+        result = await db.execute(
+            select(
+                InteractionRecord.interact_type,
+                func.count().label("cnt"),
+            ).where(
+                func.date(InteractionRecord.executed_at) == today,
+                InteractionRecord.status == 1,
+            ).group_by(InteractionRecord.interact_type)
+        )
+        rows = result.all()
+        stats = {"comment": 0, "reply": 0, "like": 0, "collect": 0, "forward": 0, "total": 0}
+        for row in rows:
+            if row.interact_type in stats:
+                stats[row.interact_type] = row.cnt
+                stats["total"] += row.cnt
+        return stats
+
+    async def _get_monthly_stats(self, db: AsyncSession, month_start: date, today: date) -> dict:
+        result = await db.execute(
+            select(func.count()).where(
+                InteractionRecord.executed_at >= month_start,
+                InteractionRecord.status == 1,
+            )
+        )
+        return {"total": result.scalar() or 0, "month_start": month_start.isoformat()}
+
+    async def _get_token_stats(self, db: AsyncSession, today: date) -> dict:
+        # 今日
+        today_stat = await db.execute(select(TokenStat).where(TokenStat.stat_date == today))
+        today_row = today_stat.scalar_one_or_none()
+
+        # 每日限额
+        limit_cfg = await db.execute(
+            select(SystemConfig).where(SystemConfig.config_key == "daily_token_limit")
+        )
+        limit_row = limit_cfg.scalar_one_or_none()
+        daily_limit = int(limit_row.config_value) if limit_row else 100000
+
+        today_used = today_row.total_tokens if today_row else 0
+        return {
+            "today_used": today_used,
+            "daily_limit": daily_limit,
+            "remaining": max(0, daily_limit - today_used),
+            "today_calls": today_row.call_count if today_row else 0,
+        }
+
+    async def _get_system_status(self, db: AsyncSession, now: datetime) -> dict:
+        start_cfg = await db.execute(
+            select(SystemConfig).where(SystemConfig.config_key == "system_start_time")
+        )
+        start_row = start_cfg.scalar_one_or_none()
+        uptime = ""
+        if start_row and start_row.config_value:
+            try:
+                start_time = datetime.fromisoformat(start_row.config_value)
+                delta = now - start_time
+                hours, rem = divmod(int(delta.total_seconds()), 3600)
+                mins = rem // 60
+                uptime = f"{hours}小时{mins}分钟"
+            except Exception:
+                uptime = "未知"
+
+        scheduler_cfg = await db.execute(
+            select(SystemConfig).where(SystemConfig.config_key == "scheduler_enabled")
+        )
+        scheduler_row = scheduler_cfg.scalar_one_or_none()
+
+        return {
+            "uptime": uptime,
+            "scheduler_enabled": (scheduler_row.config_value == "true") if scheduler_row else True,
+            "current_time": now.isoformat(),
+        }
+
+    async def get_token_trend(self, db: AsyncSession, days: int = 30) -> list:
+        """Token消耗趋势（近N天）"""
+        end_date = date.today()
+        start_date = end_date - timedelta(days=days - 1)
+        result = await db.execute(
+            select(TokenStat).where(
+                TokenStat.stat_date >= start_date,
+                TokenStat.stat_date <= end_date,
+            ).order_by(TokenStat.stat_date)
+        )
+        rows = result.scalars().all()
+        stat_map = {r.stat_date.isoformat(): r.total_tokens for r in rows}
+
+        trend = []
+        for i in range(days):
+            d = (start_date + timedelta(days=i)).isoformat()
+            trend.append({"date": d, "tokens": stat_map.get(d, 0)})
+        return trend
+
+    async def get_monthly_token_trend(self, db: AsyncSession) -> list:
+        """近12个月Token消耗"""
+        today = date.today()
+        months = []
+        for i in range(11, -1, -1):
+            if today.month - i <= 0:
+                year = today.year - 1
+                month = today.month - i + 12
+            else:
+                year = today.year
+                month = today.month - i
+            months.append((year, month))
+
+        trend = []
+        for year, month in months:
+            start = date(year, month, 1)
+            if month == 12:
+                end = date(year + 1, 1, 1) - timedelta(days=1)
+            else:
+                end = date(year, month + 1, 1) - timedelta(days=1)
+            result = await db.execute(
+                select(func.sum(TokenStat.total_tokens)).where(
+                    TokenStat.stat_date >= start, TokenStat.stat_date <= end
+                )
+            )
+            total = result.scalar() or 0
+            trend.append({"month": f"{year}-{month:02d}", "tokens": total})
+        return trend
+
+    async def get_interaction_records(
+        self, db: AsyncSession,
+        page: int = 1, page_size: int = 20,
+        user_id: int = None, interact_type: str = None,
+        status: int = None, start_date: str = None,
+        end_date: str = None, keyword: str = None
+    ) -> dict:
+        query = select(InteractionRecord)
+        conditions = []
+        if user_id:
+            conditions.append(InteractionRecord.user_id == user_id)
+        if interact_type:
+            conditions.append(InteractionRecord.interact_type == interact_type)
+        if status is not None:
+            conditions.append(InteractionRecord.status == status)
+        if start_date:
+            conditions.append(InteractionRecord.executed_at >= start_date)
+        if end_date:
+            conditions.append(InteractionRecord.executed_at <= end_date + " 23:59:59")
+        if keyword:
+            from sqlalchemy import or_
+            conditions.append(
+                or_(InteractionRecord.article_title.like(f"%{keyword}%"),
+                    InteractionRecord.content.like(f"%{keyword}%"),
+                    InteractionRecord.user_nickname.like(f"%{keyword}%"))
+            )
+        if conditions:
+            query = query.where(and_(*conditions))
+
+        count_q = select(func.count()).select_from(query.subquery())
+        total = (await db.execute(count_q)).scalar()
+
+        query = query.order_by(InteractionRecord.executed_at.desc()).offset(
+            (page - 1) * page_size
+        ).limit(page_size)
+        result = await db.execute(query)
+        records = result.scalars().all()
+
+        INTERACT_LABELS = {
+            "comment": "评论", "reply": "回复", "like": "点赞",
+            "collect": "收藏", "forward": "转发"
+        }
+        STATUS_LABELS = {0: "执行中", 1: "成功", 2: "失败"}
+
+        items = []
+        for r in records:
+            items.append({
+                "id": r.id, "user_id": r.user_id,
+                "user_nickname": r.user_nickname, "user_account": r.user_account,
+                "article_id": r.article_id, "article_title": r.article_title,
+                "interact_type": r.interact_type,
+                "interact_type_label": INTERACT_LABELS.get(r.interact_type, r.interact_type),
+                "content": r.content, "token_consumed": r.token_consumed,
+                "status": r.status, "status_label": STATUS_LABELS.get(r.status, "未知"),
+                "error_msg": r.error_msg, "retry_count": r.retry_count,
+                "executed_at": _fmt_dt(r.executed_at),
+            })
+        return {"total": total, "page": page, "page_size": page_size, "items": items}
+
+
+stats_service = StatsService()
--- a/backend/app/services/user_service.py
+++ b/backend/app/services/user_service.py
@@ -0,0 +1,358 @@
+"""虚拟用户业务服务"""
+import io
+import uuid
+from datetime import datetime, timezone
+
+def _fmt_dt(dt):
+    if dt is None: return None
+    if dt.tzinfo is None: dt = dt.replace(tzinfo=timezone.utc)
+    return dt.isoformat()
+from typing import List, Optional, Tuple
+import pandas as pd
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, update, delete, func, and_, or_
+from fastapi import HTTPException
+
+from app.models import VirtualUser, UserPersonality
+from app.schemas import UserCreateRequest, UserUpdateRequest
+from app.utils.crypto import encrypt, decrypt
+from app.services.ai_service import ai_service
+from app.core.logger import logger
+
+STATUS_LABELS = {0: "未登录", 1: "登录中", 2: "已登录", 3: "登录失效", 4: "封禁"}
+ACTIVITY_LABELS = {0: "低", 1: "中", 2: "高"}
+ACTIVITY_COMMENT_LIMITS = {0: (3, 5), 1: (8, 15), 2: (20, 30)}
+
+
+class UserService:
+
+    async def get_users(
+        self, db: AsyncSession,
+        page: int = 1, page_size: int = 20,
+        keyword: str = None, status: int = None,
+        is_enabled: int = None
+    ) -> Tuple[int, List[dict]]:
+        query = select(VirtualUser)
+        conditions = []
+        if keyword:
+            conditions.append(
+                or_(VirtualUser.nickname.like(f"%{keyword}%"),
+                    VirtualUser.account.like(f"%{keyword}%"))
+            )
+        if status is not None:
+            conditions.append(VirtualUser.status == status)
+        if is_enabled is not None:
+            conditions.append(VirtualUser.is_enabled == is_enabled)
+        if conditions:
+            query = query.where(and_(*conditions))
+
+        count_result = await db.execute(
+            select(func.count()).select_from(query.subquery())
+        )
+        total = count_result.scalar()
+
+        query = query.offset((page - 1) * page_size).limit(page_size).order_by(VirtualUser.created_at.desc())
+        result = await db.execute(query)
+        users = result.scalars().all()
+
+        items = []
+        for u in users:
+            # 获取人格
+            p_result = await db.execute(select(UserPersonality).where(UserPersonality.user_id == u.id))
+            personality = p_result.scalar_one_or_none()
+            items.append(self._format_user(u, personality))
+        return total, items
+
+    async def create_user(self, db: AsyncSession, req: UserCreateRequest) -> dict:
+        # 检查账号重复
+        existing = await db.execute(select(VirtualUser).where(VirtualUser.account == req.account))
+        if existing.scalar_one_or_none():
+            raise HTTPException(status_code=400, detail="账号已存在")
+        # 昵称选填：为空则自动生成
+        nickname = req.nickname or f"用户{req.account[-4:]}"
+        # 检查昵称重复（自动生成的若冲突则加随机后缀）
+        existing_nick = await db.execute(select(VirtualUser).where(VirtualUser.nickname == nickname))
+        if existing_nick.scalar_one_or_none():
+            import random, string
+            nickname = nickname + "_" + "".join(random.choices(string.digits, k=4))
+
+        user = VirtualUser(
+            nickname=nickname,
+            account=req.account,
+            password_enc=encrypt(req.password),
+            avatar_url=req.avatar_url,
+            activity_level=req.activity_level,
+            daily_comment_limit=req.daily_comment_limit,
+            daily_like_limit=req.daily_like_limit,
+            remark=req.remark,
+            status=0,
+            is_enabled=1,
+        )
+        db.add(user)
+        await db.flush()
+        # 自动生成AI人格
+        try:
+            await self._generate_personality(db, user)
+        except Exception as e:
+            logger.warning(f"人格生成失败，跳过: {e}")
+        await db.commit()
+        await db.refresh(user)
+        p_result = await db.execute(select(UserPersonality).where(UserPersonality.user_id == user.id))
+        personality = p_result.scalar_one_or_none()
+        return self._format_user(user, personality)
+
+    async def update_user(self, db: AsyncSession, user_id: int, req: UserUpdateRequest) -> dict:
+        user = await self._get_or_404(db, user_id)
+        if req.nickname and req.nickname != user.nickname:
+            existing = await db.execute(
+                select(VirtualUser).where(VirtualUser.nickname == req.nickname, VirtualUser.id != user_id)
+            )
+            if existing.scalar_one_or_none():
+                raise HTTPException(status_code=400, detail="昵称已被使用")
+            user.nickname = req.nickname
+        if req.password:
+            user.password_enc = encrypt(req.password)
+        if req.avatar_url is not None:
+            user.avatar_url = req.avatar_url
+        if req.activity_level is not None:
+            user.activity_level = req.activity_level
+        if req.daily_comment_limit is not None:
+            user.daily_comment_limit = req.daily_comment_limit
+        if req.daily_like_limit is not None:
+            user.daily_like_limit = req.daily_like_limit
+        if req.remark is not None:
+            user.remark = req.remark
+        if req.is_enabled is not None:
+            user.is_enabled = req.is_enabled
+            if req.is_enabled == 0:
+                user.status = 0  # 禁用后重置状态
+        await db.commit()
+        await db.refresh(user)
+        p_result = await db.execute(select(UserPersonality).where(UserPersonality.user_id == user.id))
+        personality = p_result.scalar_one_or_none()
+        return self._format_user(user, personality)
+
+    async def delete_user(self, db: AsyncSession, user_id: int):
+        user = await self._get_or_404(db, user_id)
+        await db.execute(delete(UserPersonality).where(UserPersonality.user_id == user_id))
+        await db.delete(user)
+        await db.commit()
+
+    async def batch_action(self, db: AsyncSession, user_ids: List[int], action: str):
+        """批量操作"""
+        if action == "enable":
+            await db.execute(update(VirtualUser).where(VirtualUser.id.in_(user_ids)).values(is_enabled=1))
+        elif action == "disable":
+            await db.execute(update(VirtualUser).where(VirtualUser.id.in_(user_ids)).values(is_enabled=0, status=0))
+        elif action == "logout":
+            await db.execute(update(VirtualUser).where(VirtualUser.id.in_(user_ids)).values(status=0, session_token=None))
+        elif action == "delete":
+            await db.execute(delete(UserPersonality).where(UserPersonality.user_id.in_(user_ids)))
+            await db.execute(delete(VirtualUser).where(VirtualUser.id.in_(user_ids)))
+        await db.commit()
+        return {"affected": len(user_ids)}
+
+    async def generate_personality(self, db: AsyncSession, user_id: int) -> dict:
+        """为用户生成/重新生成AI人格"""
+        user = await self._get_or_404(db, user_id)
+        # 删除旧人格
+        await db.execute(delete(UserPersonality).where(UserPersonality.user_id == user_id))
+        personality = await self._generate_personality(db, user)
+        await db.commit()
+        return self._format_personality(personality)
+
+    async def update_personality(self, db: AsyncSession, user_id: int, req) -> dict:
+        p_result = await db.execute(select(UserPersonality).where(UserPersonality.user_id == user_id))
+        personality = p_result.scalar_one_or_none()
+        if not personality:
+            raise HTTPException(status_code=404, detail="人格不存在")
+        for field, val in req.model_dump(exclude_none=True).items():
+            setattr(personality, field, val)
+        # 重新生成提示词
+        personality.comment_style_prompt = self._build_style_prompt(personality)
+        await db.commit()
+        await db.refresh(personality)
+        return self._format_personality(personality)
+
+    async def import_from_excel(self, db: AsyncSession, file_content: bytes) -> dict:
+        """Excel批量导入 - 每行独立事务，互不影响"""
+        try:
+            df = pd.read_excel(io.BytesIO(file_content), engine='openpyxl')
+        except Exception:
+            df = pd.read_excel(io.BytesIO(file_content))
+
+        df.columns = [str(c).strip() for c in df.columns]
+        required_cols = {"新闻平台账号", "登录密码", "昵称"}
+        if not required_cols.issubset(set(df.columns)):
+            raise HTTPException(
+                status_code=400,
+                detail=f"缺少必填列: {required_cols - set(df.columns)}，当前列: {list(df.columns)}"
+            )
+
+        success_count = 0
+        error_list = []
+
+        for idx, row in df.iterrows():
+            row_num = idx + 2
+            row_account = ""
+            try:
+                # 账号可能是数字类型（手机号），统一转为字符串
+                account  = str(row.get("新闻平台账号", "") or "").strip().split(".")[0]  # 去掉 .0 后缀
+                password = str(row.get("登录密码", "") or "").strip()
+                nickname = str(row.get("昵称", "") or "").strip()
+                row_account = account
+
+                if account.lower() in ("nan", "none", ""):
+                    error_list.append({"row": row_num, "error": "账号为空"}); continue
+                if password.lower() in ("nan", "none", ""):
+                    error_list.append({"row": row_num, "account": account, "error": "密码为空"}); continue
+                if len(password) < 6:
+                    error_list.append({"row": row_num, "account": account, "error": "密码不足6位"}); continue
+                # 昵称选填：为空时自动用账号末4位生成
+                if nickname.lower() in ("nan", "none", ""):
+                    nickname = f"用户{account[-4:]}"
+
+                existing = await db.execute(select(VirtualUser).where(VirtualUser.account == account))
+                if existing.scalar_one_or_none():
+                    error_list.append({"row": row_num, "account": account, "error": "账号已存在"}); continue
+                existing_nick = await db.execute(select(VirtualUser).where(VirtualUser.nickname == nickname))
+                if existing_nick.scalar_one_or_none():
+                    error_list.append({"row": row_num, "account": account, "error": "昵称已被使用"}); continue
+
+                avatar = str(row.get("头像链接", "") or "").strip()
+                remark = str(row.get("备注", "") or "").strip()
+
+                user = VirtualUser(
+                    nickname=nickname, account=account,
+                    password_enc=encrypt(password),
+                    avatar_url=avatar if avatar.lower() not in ("nan","none","") else None,
+                    remark=remark if remark.lower() not in ("nan","none","") else None,
+                    status=0, is_enabled=1, activity_level=1,
+                )
+                db.add(user)
+                await db.flush()
+                await db.commit()
+
+                try:
+                    await db.refresh(user)
+                    await self._generate_personality(db, user)
+                    await db.commit()
+                except Exception as pe:
+                    logger.warning(f"第{row_num}行人格生成跳过: {pe}")
+                    await db.rollback()
+
+                success_count += 1
+
+            except Exception as e:
+                await db.rollback()
+                error_list.append({"row": row_num, "account": row_account, "error": str(e)})
+                logger.warning(f"导入第{row_num}行失败: {e}")
+
+        return {"success": success_count, "failed": len(error_list), "errors": error_list}
+
+    async def export_to_excel(self, db: AsyncSession) -> bytes:
+        """导出全量用户数据（不含密码）"""
+        result = await db.execute(select(VirtualUser).order_by(VirtualUser.created_at.desc()))
+        users = result.scalars().all()
+        rows = []
+        for u in users:
+            p_result = await db.execute(select(UserPersonality).where(UserPersonality.user_id == u.id))
+            p = p_result.scalar_one_or_none()
+            rows.append({
+                "ID": u.id, "昵称": u.nickname, "账号": u.account,
+                "状态": STATUS_LABELS.get(u.status, "未知"),
+                "活跃度": ACTIVITY_LABELS.get(u.activity_level, "中"),
+                "性格": p.character_type if p else "", "语言风格": p.language_style if p else "",
+                "兴趣偏好": ",".join(p.interest_tags or []) if p else "",
+                "互动倾向": p.interact_tendency if p else "",
+                "累计互动": u.total_interactions, "今日评论": u.today_comment_count,
+                "今日点赞": u.today_like_count, "最后登录": u.last_login_at,
+                "最后互动": u.last_interact_at, "备注": u.remark,
+                "是否启用": "是" if u.is_enabled else "否", "创建时间": u.created_at,
+            })
+        df = pd.DataFrame(rows)
+        buf = io.BytesIO()
+        df.to_excel(buf, index=False, sheet_name="虚拟用户")
+        buf.seek(0)
+        return buf.read()
+
+    async def get_excel_template(self) -> bytes:
+        """获取导入模板（账号+密码必填，其他选填）"""
+        df = pd.DataFrame(columns=["新闻平台账号", "登录密码", "昵称（选填）", "头像链接（选填）", "备注（选填）"])
+        df.loc[0] = ["13800138000", "password123", "（留空自动生成）", "", ""]
+        buf = io.BytesIO()
+        df.to_excel(buf, index=False, sheet_name="导入模板")
+        buf.seek(0)
+        return buf.read()
+
+    async def _generate_personality(self, db: AsyncSession, user: VirtualUser) -> UserPersonality:
+        """调用AI生成人格"""
+        result = await ai_service.generate_personality(user.nickname, user.account)
+        personality = UserPersonality(
+            user_id=user.id,
+            character_type=result.get("character_type", "温和"),
+            language_style=result.get("language_style", "幽默"),
+            interest_tags=result.get("interest_tags", ["科技"]),
+            interact_tendency=result.get("interact_tendency", "爱评论"),
+            word_count_min=result.get("word_count_min", 20),
+            word_count_max=result.get("word_count_max", 80),
+            personality_desc=result.get("personality_desc", ""),
+        )
+        personality.comment_style_prompt = self._build_style_prompt(personality)
+        db.add(personality)
+        await db.flush()
+        return personality
+
+    def _build_style_prompt(self, p: UserPersonality) -> str:
+        interests = "、".join(p.interest_tags or []) if p.interest_tags else "综合"
+        return (
+            f"你是一个{p.character_type}性格、{p.language_style}语言风格的新闻读者，"
+            f"主要对{interests}类内容感兴趣，互动倾向是{p.interact_tendency}。"
+            f"评论字数控制在{p.word_count_min}~{p.word_count_max}字。"
+            f"个人简介：{p.personality_desc}"
+        )
+
+    def _format_user(self, u: VirtualUser, p: Optional[UserPersonality]) -> dict:
+        return {
+            "id": u.id, "nickname": u.nickname, "account": u.account,
+            "avatar_url": u.avatar_url,
+            "real_name": getattr(u, "real_name", None),
+            "sex": getattr(u, "sex", 0),
+            "platform_uid": getattr(u, "platform_uid", None),
+            "status": u.status,
+            "status_label": STATUS_LABELS.get(u.status, "未知"),
+            "activity_level": u.activity_level,
+            "activity_label": ACTIVITY_LABELS.get(u.activity_level, "中"),
+            "daily_comment_limit": u.daily_comment_limit,
+            "daily_like_limit": u.daily_like_limit,
+            "today_comment_count": u.today_comment_count,
+            "today_like_count": u.today_like_count,
+            "total_interactions": u.total_interactions,
+            "last_login_at": _fmt_dt(u.last_login_at),
+            "last_interact_at": _fmt_dt(u.last_interact_at),
+            "remark": u.remark, "is_enabled": u.is_enabled,
+            "created_at": _fmt_dt(u.created_at),
+            "personality": self._format_personality(p) if p else None,
+        }
+
+    def _format_personality(self, p: Optional[UserPersonality]) -> Optional[dict]:
+        if not p:
+            return None
+        return {
+            "id": p.id, "user_id": p.user_id,
+            "character_type": p.character_type, "language_style": p.language_style,
+            "interest_tags": p.interest_tags or [], "interact_tendency": p.interact_tendency,
+            "word_count_min": p.word_count_min, "word_count_max": p.word_count_max,
+            "personality_desc": p.personality_desc,
+            "updated_at": _fmt_dt(p.updated_at),
+        }
+
+    async def _get_or_404(self, db: AsyncSession, user_id: int) -> VirtualUser:
+        result = await db.execute(select(VirtualUser).where(VirtualUser.id == user_id))
+        user = result.scalar_one_or_none()
+        if not user:
+            raise HTTPException(status_code=404, detail="用户不存在")
+        return user
+
+
+user_service = UserService()
--- a/backend/app/utils/init.py
+++ b/backend/app/utils/init.py
--- a/backend/app/utils/crypto.py
+++ b/backend/app/utils/crypto.py
@@ -0,0 +1,49 @@
+"""AES加密工具 - 用于密码和API Key加密存储"""
+import base64
+import hashlib
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import pad, unpad
+from app.core.config import settings
+
+
+def _get_key() -> bytes:
+    """获取32字节AES密钥"""
+    key = settings.AES_KEY.encode("utf-8")
+    return hashlib.sha256(key).digest()
+
+
+def encrypt(plaintext: str) -> str:
+    """AES-CBC加密"""
+    if not plaintext:
+        return ""
+    key = _get_key()
+    cipher = AES.new(key, AES.MODE_CBC)
+    ct_bytes = cipher.encrypt(pad(plaintext.encode("utf-8"), AES.block_size))
+    iv = base64.b64encode(cipher.iv).decode("utf-8")
+    ct = base64.b64encode(ct_bytes).decode("utf-8")
+    return f"{iv}:{ct}"
+
+
+def decrypt(ciphertext: str) -> str:
+    """AES-CBC解密"""
+    if not ciphertext or ":" not in ciphertext:
+        return ""
+    try:
+        iv_str, ct_str = ciphertext.split(":", 1)
+        key = _get_key()
+        iv = base64.b64decode(iv_str)
+        ct = base64.b64decode(ct_str)
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        pt = unpad(cipher.decrypt(ct), AES.block_size)
+        return pt.decode("utf-8")
+    except Exception:
+        return ""
+
+
+def mask_password(password: str) -> str:
+    """密码脱敏显示"""
+    if not password:
+        return ""
+    if len(password) <= 2:
+        return "*" * len(password)
+    return password[0] + "*" * (len(password) - 2) + password[-1]
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -0,0 +1,24 @@
+fastapi==0.115.6
+uvicorn[standard]==0.34.0
+sqlalchemy==2.0.36
+pymysql==1.1.1
+cryptography==44.0.0
+redis==5.2.1
+apscheduler==3.10.4
+pandas==2.2.3
+openpyxl==3.1.5
+passlib[bcrypt]==1.7.4
+pycryptodome==3.21.0
+httpx==0.28.1
+python-multipart==0.0.20
+python-jose[cryptography]==3.3.0
+pydantic==2.10.4
+pydantic-settings==2.7.0
+openai==1.59.6
+langchain==0.3.13
+langchain-openai==0.3.0
+aiofiles==24.1.0
+loguru==0.7.3
+alembic==1.14.0
+aiomysql==0.2.0
+greenlet==3.1.1