fix: self-join relay synchronously (App has no add_event_handler)

app.py

@@ -504,25 +504,22 @@ if _webagent_dir.exists():
 
             # Auto-join: the Space node registers itself in its own relay hub
             # so remote nodes that connect see it in the roster immediately.
-            async def _self_join_relay() -> None:
-                try:
-                    caps = [
-                        f"{e.descriptor.name}@{e.descriptor.version[0]}.{e.descriptor.version[1]}"
-                        for e in _node.bus.registry.all_local()
-                    ]
-                    nid = getattr(_node, "node_id_full", _node.node_id)
-                    _relay_hub.join(
-                        nid,
-                        display_name=_node.display_name,
-                        community_id=_node.community_id,
-                        capabilities=caps,
-                        endpoint="",
-                    )
-                    print(f"[hearthnet] Space node '{_node.display_name}' joined local relay hub")
-                except Exception as _je:
-                    print(f"[hearthnet] self-join relay failed: {_je}")
-
-            result.add_event_handler("startup", _self_join_relay)
+            try:
+                _caps = [
+                    f"{e.descriptor.name}@{e.descriptor.version[0]}.{e.descriptor.version[1]}"
+                    for e in _node.bus.registry.all_local()
+                ]
+                _nid = getattr(_node, "node_id_full", _node.node_id)
+                _relay_hub.join(
+                    _nid,
+                    display_name=_node.display_name,
+                    community_id=_node.community_id,
+                    capabilities=_caps,
+                    endpoint="",
+                )
+                print(f"[hearthnet] Space node '{_node.display_name}' joined local relay hub")
+            except Exception as _je:
+                print(f"[hearthnet] self-join relay failed: {_je}")
             return result
 
         _gr_routes.App.create_app = staticmethod(_patched_create_app)