feat: DSH编排基建首版（server/tests 88用例/P2插件/8020端口/PORT-NOTE/MOBILE_APP）

server/dsh_sync/deps.py

@@ -0,0 +1,26 @@
+"""Request-scoped dependencies shared by the routers."""
+from __future__ import annotations
+
+import psycopg
+from fastapi import HTTPException, Request
+
+from .auth import Ctx
+from .config import Config
+from .db import connect
+
+
+def get_cfg(request: Request) -> Config:
+    return request.app.state.cfg
+
+
+def get_ctx(request: Request):
+    cfg: Config = request.app.state.cfg
+    try:
+        conn = connect(cfg)
+    except psycopg.Error:
+        # A transient DB outage must degrade to 503, not kill the server.
+        raise HTTPException(503, "database unavailable, try again shortly")
+    try:
+        yield Ctx(cfg, conn)
+    finally:
+        conn.close()