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/schemas/tenant_excel.py

@@ -0,0 +1,134 @@
+# -*- coding: utf-8 -*-
+"""
+租户管理后台 — Excel 上传 Pydantic Schema。
+
+覆盖：4 种模板行数据模型、校验结果、冲突 diff、确认请求、上传记录。
+
+需求: 5.2, 7.2, 8.4
+"""
+
+from __future__ import annotations
+
+from typing import Literal
+
+from pydantic import Field
+
+from app.schemas.base import CamelModel
+
+
+# ── 4 种模板行数据模型 ────────────────────────────────────
+
+
+class ExpenseRow(CamelModel):
+    """财务支出行数据。"""
+    row_index: int = Field(..., description="行号（从 1 开始）")
+    expense_month: str = Field(..., description="月份 YYYY-MM")
+    category: str = Field(..., description="支出类别（8 值枚举）")
+    amount: float = Field(..., description="金额（> 0，精度 2 位小数）")
+    remark: str | None = Field(None, description="备注（可选，最长 500 字符）")
+
+
+class PlatformIncomeRow(CamelModel):
+    """团购收入行数据。"""
+    row_index: int = Field(..., description="行号")
+    income_month: str = Field(..., description="月份 YYYY-MM")
+    platform_name: str = Field(..., description="平台名称")
+    amount: float = Field(..., description="收入金额（> 0）")
+    remark: str | None = Field(None, description="备注（可选，最长 500 字符）")
+
+
+class SalaryAdjRow(CamelModel):
+    """助教奖罚行数据。"""
+    row_index: int = Field(..., description="行号")
+    salary_month: str = Field(..., description="月份 YYYY-MM")
+    assistant_name: str = Field(..., description="助教姓名")
+    assistant_number: str = Field(..., description="助教编号")
+    adjustment_type: str = Field(..., description="类型（扣款/奖金）")
+    amount: float = Field(..., description="金额（> 0）")
+    reason: str = Field(..., description="原因（非空，最长 200 字符）")
+    assistant_id: int | None = Field(None, description="匹配到的助教 ID")
+
+
+class RechargeCommissionRow(CamelModel):
+    """充值业绩归属行数据。"""
+    row_index: int = Field(..., description="行号")
+    recharge_date: str = Field(..., description="充值日期 YYYY-MM-DD")
+    member_name: str = Field(..., description="会员名称")
+    recharge_amount: float = Field(..., description="充值金额（> 0）")
+    assigned_assistant: str = Field(..., description="归属助教")
+    reward_amount: float = Field(..., description="奖励金额（≥ 0）")
+    assistant_id: int | None = Field(None, description="匹配到的助教 ID")
+
+
+# ── 校验错误/警告 ─────────────────────────────────────────
+
+
+class ValidationError(CamelModel):
+    """单行校验错误。"""
+    row_index: int = Field(..., description="行号")
+    column: str = Field(..., description="列名")
+    message: str = Field(..., description="错误描述")
+
+
+class ValidationWarning(CamelModel):
+    """单行校验警告（如人员匹配失败）。"""
+    row_index: int = Field(..., description="行号")
+    column: str = Field(..., description="列名")
+    message: str = Field(..., description="警告描述")
+
+
+class ValidationResult(CamelModel):
+    """校验结果。"""
+    errors: list[ValidationError] = Field(default_factory=list, description="错误列表")
+    warnings: list[ValidationWarning] = Field(default_factory=list, description="警告列表")
+    passed_rows: list[dict] = Field(default_factory=list, description="通过校验的行数据")
+    upload_id: int | None = Field(None, description="上传批次 ID（校验全部通过时创建）")
+
+
+# ── 冲突 diff ─────────────────────────────────────────────
+
+
+class FieldDiff(CamelModel):
+    """单字段差异。"""
+    field: str = Field(..., description="字段名")
+    old_value: str | None = Field(None, description="旧值")
+    new_value: str | None = Field(None, description="新值")
+
+
+class ConflictDiff(CamelModel):
+    """冲突行 diff。"""
+    row_index: int = Field(..., description="行号")
+    field_diffs: list[FieldDiff] = Field(default_factory=list, description="逐字段差异")
+
+
+# ── 确认请求 ──────────────────────────────────────────────
+
+
+class Resolution(CamelModel):
+    """单行冲突解决方案。"""
+    row_index: int = Field(..., description="行号")
+    action: Literal["replace", "keep"] = Field(..., description="操作：replace=替换/keep=保留")
+
+
+class ConfirmRequest(CamelModel):
+    """确认写入请求。"""
+    upload_id: int = Field(..., description="上传批次 ID")
+    resolutions: list[Resolution] = Field(default_factory=list, description="冲突解决方案列表")
+
+
+# ── 上传记录 ──────────────────────────────────────────────
+
+
+class UploadLogItem(CamelModel):
+    """上传记录列表项。"""
+    id: int
+    site_id: int
+    upload_type: str = Field(..., description="模板类型")
+    file_name: str = Field(..., description="原始文件名")
+    uploaded_by: int = Field(..., description="上传人 ID")
+    row_count: int = Field(0, description="数据行数")
+    conflict_count: int = Field(0, description="冲突行数")
+    resolved_count: int = Field(0, description="已解决冲突数")
+    status: str = Field(..., description="状态：pending/confirmed/failed")
+    created_at: str | None = Field(None, description="上传时间")
+    confirmed_at: str | None = Field(None, description="确认时间")