fix: 补齐候选诊断环境与证据保护（09-06-release-gate-integrity）

scripts/qa/local-postgres-proxy.py

@@ -0,0 +1,31 @@
+import asyncio
+import sys
+
+
+async def copy_stream(reader, writer):
+    try:
+        while data := await reader.read(65536):
+            writer.write(data)
+            await writer.drain()
+    except (ConnectionError, asyncio.CancelledError):
+        pass
+    finally:
+        writer.close()
+
+
+async def connect_database(reader, writer):
+    try:
+        database_reader, database_writer = await asyncio.open_unix_connection(sys.argv[1])
+    except OSError:
+        writer.close()
+        return
+    await asyncio.gather(copy_stream(reader, database_writer), copy_stream(database_reader, writer))
+
+
+async def main():
+    server = await asyncio.start_server(connect_database, "127.0.0.1", 25432)
+    async with server:
+        await server.serve_forever()
+
+
+asyncio.run(main())