fix(memos-local-plugin): prevent orphan episode scan from closing active sessions; add episode delete API

apps/memos-local-plugin/adapters/hermes/memos_provider/__init__.py

@@ -142,7 +142,13 @@ def initialize(self, session_id: str, **kwargs: Any) -> None:  # type: ignore[ov
             logger.warning("MemOS: failed to start bridge — %s", err)
             return
         try:
-            self._bridge = MemosBridgeClient()
+            # Try TCP mode first (connect to daemon bridge).
+            # Falls back to stdio (spawn subprocess) if daemon isn't running.
+            try:
+                self._bridge = MemosBridgeClient(tcp_host="127.0.0.1", tcp_port=18911)
+            except BridgeError:
+                logger.info("MemOS: TCP daemon not available, falling back to stdio bridge")
+                self._bridge = MemosBridgeClient()
             resp = self._bridge.request(
                 "session.open",
                 {
@@ -455,6 +461,10 @@ def on_session_end(self, messages: list[dict[str, Any]]) -> None:  # type: ignor
         if pending:
             with contextlib.suppress(Exception):
                 self._turn_end(*pending)
+        # Close the episode and session so the core stamps closure metadata
+        # (e.g. session.meta.closedAt). In TCP mode this ensures the daemon
+        # can distinguish "normal shutdown" from "abrupt disconnect" on
+        # restart, preventing orphan retention.
         with contextlib.suppress(Exception):
             self._bridge.request("episode.close", {"episodeId": self._episode_id})
         with contextlib.suppress(Exception):