feat(gateway): add Feishu websocket ping timing overrides

Allow Feishu websocket keepalive timing to be configured via platform
extra config so disconnects can be detected faster in unstable networks.

New optional extra settings:
- ws_ping_interval
- ws_ping_timeout

These values are applied only when explicitly configured. Invalid values
fall back to the websocket library defaults by leaving the options unset.

This complements the reconnect timing settings added previously and helps
reduce total recovery time after network interruptions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

gateway/platforms/feishu.py

@@ -272,6 +272,8 @@ class FeishuAdapterSettings:
     webhook_path: str
     ws_reconnect_nonce: int = 30
     ws_reconnect_interval: int = 120
+    ws_ping_interval: Optional[int] = None
+    ws_ping_timeout: Optional[int] = None
 
 
 @dataclass
@@ -376,6 +378,14 @@ def _coerce_positive_int(value: Any, default: int) -> int:
     return parsed if parsed >= 1 else default
 
 
+def _coerce_optional_positive_int(value: Any) -> Optional[int]:
+    try:
+        parsed = int(value)
+    except (TypeError, ValueError):
+        return None
+    return parsed if parsed >= 1 else None
+
+
 # ---------------------------------------------------------------------------
 # Post payload builders and parsers
 # ---------------------------------------------------------------------------
@@ -939,11 +949,23 @@ def _run_official_feishu_ws_client(ws_client: Any, adapter: Any) -> None:
     asyncio.set_event_loop(loop)
     ws_client_module.loop = loop
     adapter._ws_thread_loop = loop
+
+    original_connect = ws_client_module.websockets.connect
+
+    async def _connect_with_overrides(*args: Any, **kwargs: Any) -> Any:
+        if adapter._ws_ping_interval is not None and "ping_interval" not in kwargs:
+            kwargs["ping_interval"] = adapter._ws_ping_interval
+        if adapter._ws_ping_timeout is not None and "ping_timeout" not in kwargs:
+            kwargs["ping_timeout"] = adapter._ws_ping_timeout
+        return await original_connect(*args, **kwargs)
+
+    ws_client_module.websockets.connect = _connect_with_overrides
     try:
         ws_client.start()
     except Exception:
         pass
     finally:
+        ws_client_module.websockets.connect = original_connect
         pending = [t for t in asyncio.all_tasks(loop) if not t.done()]
         for task in pending:
             task.cancel()
@@ -1060,6 +1082,8 @@ class FeishuAdapter(BasePlatformAdapter):
             ),
             ws_reconnect_nonce=_coerce_non_negative_int(extra.get("ws_reconnect_nonce"), 30),
             ws_reconnect_interval=_coerce_positive_int(extra.get("ws_reconnect_interval"), 120),
+            ws_ping_interval=_coerce_optional_positive_int(extra.get("ws_ping_interval")),
+            ws_ping_timeout=_coerce_optional_positive_int(extra.get("ws_ping_timeout")),
         )
 
     def _apply_settings(self, settings: FeishuAdapterSettings) -> None:
@@ -1084,6 +1108,8 @@ class FeishuAdapter(BasePlatformAdapter):
         self._webhook_path = settings.webhook_path
         self._ws_reconnect_nonce = settings.ws_reconnect_nonce
         self._ws_reconnect_interval = settings.ws_reconnect_interval
+        self._ws_ping_interval = settings.ws_ping_interval
+        self._ws_ping_timeout = settings.ws_ping_timeout
 
     def _build_event_handler(self) -> Any:
         if EventDispatcherHandler is None:

tests/gateway/test_feishu.py

@@ -587,6 +587,32 @@ class TestAdapterModule(unittest.TestCase):
         self.assertEqual(settings.ws_reconnect_nonce, 0)
         self.assertEqual(settings.ws_reconnect_interval, 3)
 
+    def test_load_settings_accepts_custom_ws_ping_values(self):
+        from gateway.platforms.feishu import FeishuAdapter
+
+        settings = FeishuAdapter._load_settings(
+            {
+                "ws_ping_interval": 10,
+                "ws_ping_timeout": 8,
+            }
+        )
+
+        self.assertEqual(settings.ws_ping_interval, 10)
+        self.assertEqual(settings.ws_ping_timeout, 8)
+
+    def test_load_settings_ignores_invalid_ws_ping_values(self):
+        from gateway.platforms.feishu import FeishuAdapter
+
+        settings = FeishuAdapter._load_settings(
+            {
+                "ws_ping_interval": 0,
+                "ws_ping_timeout": -1,
+            }
+        )
+
+        self.assertIsNone(settings.ws_ping_interval)
+        self.assertIsNone(settings.ws_ping_timeout)
+
 
 class TestAdapterBehavior(unittest.TestCase):
     @patch.dict(os.environ, {}, clear=True)