fix: runtime errors

.env.example

@@ -1 +1 @@
-GEMINI_API_KEY=KEY
+GEMINI_API_KEY=KEYS

src/config.py

@@ -23,7 +23,6 @@ class BaseAppSettings(BaseSettings):
 
 
 class AppSettings(BaseAppSettings):
-    gemini_api_key: SecretStr
     gemini_api_keys: SecretStr
     # assistant_api_key: SecretStr
     top_p: float = 0.95

src/main.py

@@ -330,9 +330,7 @@ with gr.Blocks(
             game_image,
             game_choices,
             custom_choice,
-            ls_user_hash,
         ],
-        concurrency_limit=CONCURRENCY_LIMIT,
     )
 
     back_btn.click(
@@ -345,12 +343,18 @@ with gr.Blocks(
             error_message,
         ],
     )
+    
+    game_choices.change(
+        fn=update_scene,
+        inputs=[ls_user_hash, game_choices],
+        outputs=[game_text, game_image, game_choices, custom_choice],
+        concurrency_limit=CONCURRENCY_LIMIT,
+    )
 
     custom_choice.submit(
         fn=update_scene,
         inputs=[ls_user_hash, custom_choice],
         outputs=[game_text, game_image, game_choices, custom_choice],
-        concurrency_limit=CONCURRENCY_LIMIT,
     )
 
     demo.unload(cleanup_music_session)
@@ -363,9 +367,8 @@ with gr.Blocks(
         fn=update_audio,
         inputs=[ls_user_hash],
         outputs=[audio_out],
-        concurrency_limit=CONCURRENCY_LIMIT,
     )
 
 
-demo.queue()
+demo.queue(default_concurrency_limit=CONCURRENCY_LIMIT)
 demo.launch(ssr_mode=False)

src/services/google.py

@@ -19,9 +19,7 @@ class ApiKeyPool:
         self._sync_lock = threading.Lock()
 
     def _load_keys(self) -> None:
-        keys_raw = (
-            getattr(settings, "gemini_api_keys", None) or settings.gemini_api_key
-        )
+        keys_raw = settings.gemini_api_keys
         keys_str = keys_raw.get_secret_value()
         keys = [k.strip() for k in keys_str.split(',') if k.strip()] if keys_str else []
         if not keys: