feat: 累积功能变更 — 聊天集成、租户管理、小程序更新、ETL 增强、迁移脚本

包含多个会话的累积代码变更：
- backend: AI 聊天服务、触发器调度、认证增强、WebSocket、调度器最小间隔
- admin-web: ETL 状态页、任务管理、调度配置、登录优化
- miniprogram: 看板页面、聊天集成、UI 组件、导航更新
- etl: DWS 新任务（finance_area_daily/board_cache）、连接器增强
- tenant-admin: 项目初始化
- db: 19 个迁移脚本（etl_feiqiu 11 + zqyy_app 8）
- packages/shared: 枚举和工具函数更新
- tools: 数据库工具、报表生成、健康检查
- docs: PRD/架构/部署/合约文档更新

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/backend/app/routers/execution.py

@@ -35,6 +35,7 @@ from app.schemas.execution import (
 from app.schemas.tasks import TaskConfigSchema
 from app.services.task_executor import task_executor
 from app.services.task_queue import task_queue
+from app.services.output_cleanup import cleanup_output_dirs
 
 logger = logging.getLogger(__name__)
 
@@ -188,6 +189,142 @@ async def cancel_execution(
     return {"message": "已发送取消信号"}
 
 
+import re as _re
+
+
+def _parse_config_from_command(
+    task_codes: list[str],
+    command: str | None,
+    site_id: int,
+) -> TaskConfigSchema:
+    """从旧记录的 command 字符串解析出原始 CLI 参数，构建 TaskConfigSchema。
+
+    旧记录没有 config JSONB 列，但 command 包含完整的 CLI 参数。
+    """
+    kwargs: dict = {
+        "tasks": task_codes or [],
+        "store_id": site_id,
+    }
+
+    if command:
+        # 解析 --flow
+        m = _re.search(r"--flow\s+(\S+)", command)
+        if m:
+            kwargs["flow"] = m.group(1)
+
+        # 解析 --processing-mode
+        m = _re.search(r"--processing-mode\s+(\S+)", command)
+        if m:
+            kwargs["processing_mode"] = m.group(1)
+
+        # 解析 --lookback-hours
+        m = _re.search(r"--lookback-hours\s+(\d+)", command)
+        if m:
+            kwargs["lookback_hours"] = int(m.group(1))
+
+        # 解析 --overlap-seconds
+        m = _re.search(r"--overlap-seconds\s+(\d+)", command)
+        if m:
+            kwargs["overlap_seconds"] = int(m.group(1))
+
+        # 解析 --window-start / --window-end
+        m = _re.search(r"--window-start\s+(\S+)", command)
+        if m:
+            kwargs["window_start"] = m.group(1)
+            kwargs["window_mode"] = "custom"
+        m = _re.search(r"--window-end\s+(\S+)", command)
+        if m:
+            kwargs["window_end"] = m.group(1)
+
+        # 解析 --dry-run
+        if "--dry-run" in command:
+            kwargs["dry_run"] = True
+
+        # 解析 --force-full
+        if "--force-full" in command:
+            kwargs["force_full"] = True
+
+        # 解析 --fetch-before-verify
+        if "--fetch-before-verify" in command:
+            kwargs["fetch_before_verify"] = True
+
+    return TaskConfigSchema(**kwargs)
+
+
+# ── POST /api/execution/{id}/rerun — 重新执行 ───────────────
+
+# CHANGE 2026-03-22 | 支持对任意历史任务重新执行
+@router.post("/{execution_id}/rerun", response_model=ExecutionRunResponse)
+async def rerun_execution(
+    execution_id: str,
+    user: CurrentUser = Depends(get_current_user),
+) -> ExecutionRunResponse:
+    """根据历史执行记录重新执行相同的任务。
+
+    优先从 config JSONB 列还原完整配置；若旧记录无 config 列，
+    回退到 task_codes + 默认配置。
+    """
+    conn = get_connection()
+    try:
+        with conn.cursor() as cur:
+            cur.execute(
+                """
+                SELECT task_codes, site_id, config, command
+                FROM task_execution_log
+                WHERE id = %s AND site_id = %s
+                """,
+                (execution_id, user.site_id),
+            )
+            row = cur.fetchone()
+        conn.commit()
+    finally:
+        conn.close()
+
+    if row is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="执行记录不存在",
+        )
+
+    task_codes = row[0] or []
+    config_json = row[2]  # JSONB，可能为 None（旧记录）
+    command_str = row[3]  # command 字符串，用于旧记录回退解析
+
+    if not task_codes and not config_json:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="原执行记录无任务代码，无法重新执行",
+        )
+
+    # CHANGE 2026-03-22 | 优先从存储的完整 config 还原，保留原始 processing_mode/lookback 等参数
+    if config_json and isinstance(config_json, dict):
+        # 覆盖 store_id 为当前用户的（安全）
+        config_json["store_id"] = user.site_id
+        config = TaskConfigSchema(**config_json)
+    else:
+        # 旧记录无 config 列，尝试从 command 字符串解析原始参数
+        config = _parse_config_from_command(task_codes, command_str, user.site_id)
+
+    new_execution_id = str(uuid.uuid4())
+    asyncio.create_task(
+        task_executor.execute(
+            config=config,
+            execution_id=new_execution_id,
+            site_id=user.site_id,
+        )
+    )
+
+    logger.info(
+        "重新执行 [%s] → [%s], tasks=%s",
+        execution_id, new_execution_id, task_codes,
+    )
+
+    return ExecutionRunResponse(
+        execution_id=new_execution_id,
+        message=f"已基于 {execution_id[:8]}… 重新执行",
+    )
+
+
 # ── GET /api/execution/history — 执行历史 ────────────────────
 
 @router.get("/history", response_model=list[ExecutionHistoryItem])
@@ -281,3 +418,21 @@ async def get_execution_logs(
         output_log=row[0],
         error_log=row[1],
     )
+
+
+# ── POST /api/execution/cleanup-output — 清理输出目录 ────────
+
+# CHANGE 2026-03-27 | 新增：执行前清理 EXPORT_ROOT 下旧运行记录，每类任务只保留最近 10 个
+@router.post("/cleanup-output")
+async def cleanup_output(
+    user: CurrentUser = Depends(get_current_user),
+) -> dict:
+    """清理 EXPORT_ROOT 下每个任务文件夹的旧运行记录，只保留最近 10 个。"""
+    try:
+        result = cleanup_output_dirs(keep=10)
+    except RuntimeError as exc:
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail=str(exc),
+        )
+    return result