fix(settings): dispatch name display updates on original loop

tests/services/test_settings_manager.py

@@ -1,4 +1,6 @@
+import asyncio
 import copy
+import threading
 import json
 import os
 
@@ -110,15 +112,30 @@ def test_model_name_display_setting_notifies_scanners(tmp_path, monkeypatch):
 
     manager = _create_manager_with_settings(tmp_path, monkeypatch, initial)
 
+    loop = asyncio.new_event_loop()
+    thread = threading.Thread(target=loop.run_forever, daemon=True)
+    thread.start()
+
     class DummyScanner:
         def __init__(self):
             self.calls = []
+            self.loop = loop
 
         async def on_model_name_display_changed(self, mode: str) -> None:
             self.calls.append(mode)
 
     dummy_scanner = DummyScanner()
 
+    dispatched_loops = []
+    futures = []
+    original_run_coroutine_threadsafe = asyncio.run_coroutine_threadsafe
+
+    def tracking_run_coroutine_threadsafe(coro, target_loop):
+        dispatched_loops.append(target_loop)
+        future = original_run_coroutine_threadsafe(coro, target_loop)
+        futures.append(future)
+        return future
+
     def fake_get_service_sync(cls, name):
         return dummy_scanner if name == "lora_scanner" else None
 
@@ -127,10 +144,20 @@ def test_model_name_display_setting_notifies_scanners(tmp_path, monkeypatch):
         "get_service_sync",
         classmethod(fake_get_service_sync),
     )
+    monkeypatch.setattr(asyncio, "run_coroutine_threadsafe", tracking_run_coroutine_threadsafe)
 
-    manager.set("model_name_display", "file_name")
+    try:
+        manager.set("model_name_display", "file_name")
 
-    assert dummy_scanner.calls == ["file_name"]
+        for future in futures:
+            future.result(timeout=1)
+
+        assert dummy_scanner.calls == ["file_name"]
+        assert dispatched_loops == [dummy_scanner.loop]
+    finally:
+        loop.call_soon_threadsafe(loop.stop)
+        thread.join(timeout=1)
+        loop.close()
 
 
 def test_migrates_legacy_settings_file(tmp_path, monkeypatch):