feat: chat integration, tenant admin spec, backend chat service, miniprogram updates, DEMO moved to tmp, XCX-TEST removed, migrations & docs

apps/backend/app/services/task_generator.py

@@ -1,3 +1,8 @@
+# AI_CHANGELOG
+# - 2026-03-20 | Prompt: H2 FDW→直连ETL统一改造 | _process_assistant() 中 3 处 fdw_etl.v_dws_member_*
+#   改为直连 ETL 库查询 app.v_dws_member_*。使用 fdw_queries._fdw_context()。
+#   这是风险最高的改造点：WBI/NCI 全表扫描无 WHERE，RLS 是唯一门店过滤手段。
+
 # -*- coding: utf-8 -*-
 """
 任务生成器（Task Generator）
@@ -185,19 +190,18 @@ def _process_assistant(
 ) -> None:
     """处理单个助教下所有客户-助教对的任务生成。"""
 
-    # 通过 FDW 读取该助教关联的客户指数数据
-    # 需要 SET LOCAL app.current_site_id 以启用 RLS
-    with conn.cursor() as cur:
-        cur.execute("BEGIN")
-        cur.execute(
-            "SET LOCAL app.current_site_id = %s", (str(site_id),)
-        )
+    # CHANGE 2026-03-20 | H2 FDW→直连ETL | fdw_etl.v_dws_member_* → app.v_dws_member_*
+    # intent: 修复 RLS 门店隔离失效（postgres_fdw 不传递 GUC 参数）
+    # assumptions: _fdw_context 内部管理 ETL 连接，conn 仅用于后续业务库写入
+    # 边界条件: WBI/NCI 全表扫描（无 WHERE），RLS 隔离是唯一的门店过滤手段
+    from app.services.fdw_queries import _fdw_context
 
+    with _fdw_context(conn, site_id) as cur:
         # 读取 WBI（流失回赢指数）
         cur.execute(
             """
             SELECT member_id, COALESCE(display_score, 0)
-            FROM fdw_etl.v_dws_member_winback_index
+            FROM app.v_dws_member_winback_index
             """
         )
         wbi_map = {row[0]: Decimal(str(row[1])) for row in cur.fetchall()}
@@ -206,7 +210,7 @@ def _process_assistant(
         cur.execute(
             """
             SELECT member_id, COALESCE(display_score, 0)
-            FROM fdw_etl.v_dws_member_newconv_index
+            FROM app.v_dws_member_newconv_index
             """
         )
         nci_map = {row[0]: Decimal(str(row[1])) for row in cur.fetchall()}
@@ -215,15 +219,13 @@ def _process_assistant(
         cur.execute(
             """
             SELECT member_id, COALESCE(rs_display, 0)
-            FROM fdw_etl.v_dws_member_assistant_relation_index
+            FROM app.v_dws_member_assistant_relation_index
             WHERE assistant_id = %s
             """,
             (assistant_id,),
         )
         rs_map = {row[0]: Decimal(str(row[1])) for row in cur.fetchall()}
 
-    conn.commit()
-
     # 合并所有涉及的 member_id
     all_member_ids = set(wbi_map.keys()) | set(nci_map.keys()) | set(rs_map.keys())