Fix station guide persona in normal chat

app.py

@@ -344,7 +344,9 @@ async def stream_response_gemini(query, history, game_context=None, mode: Option
     # 1) Build your system prompt once
     current_date = datetime.now().strftime("%Y-%m-%d")
     game_context_text = _format_game_context_for_prompt(game_context)
-    is_game_mode = (mode == 'game') or bool(game_context_text)
+    # Only enable game persona when explicitly requested via mode=='game'.
+    # Do NOT infer game mode from presence of game_context or memory alone.
+    is_game_mode = (mode == 'game')
     if is_game_mode:
         system_prompt = (
             "You are Tim Luka Horstmann as a friendly in-game 'Station Guide'. "
@@ -432,7 +434,9 @@ async def stream_response_local(query, history, game_context=None, mode: Optiona
     current_date = datetime.now().strftime("%Y-%m-%d")
     
     game_context_text = _format_game_context_for_prompt(game_context)
-    is_game_mode = (mode == 'game') or bool(game_context_text)
+    # Only enable game persona when explicitly requested via mode=='game'.
+    # Do NOT infer game mode from presence of game_context or memory alone.
+    is_game_mode = (mode == 'game')
     if is_game_mode:
         system_prompt = (
             "/no_think You are Tim Luka Horstmann as a friendly in-game 'Station Guide'. "
@@ -531,8 +535,8 @@ async def predict(request: Request, query_request: QueryRequest):
     history = query_request.history
     game_context = query_request.game_context
     mode = (query_request.mode or '').lower() or None
-    # Attach optional game_memory into context for prompt formatting
-    if query_request.game_memory is not None:
+    # Attach optional game_memory only when in explicit game mode
+    if (mode == 'game') and (query_request.game_memory is not None):
         if isinstance(game_context, dict):
             game_context = dict(game_context)
             game_context['__memory'] = query_request.game_memory