fix: /config/set now syncs all runtime-relevant globals

Previously only 4 of 5+ settings were synced to globals when set via
the generic /config/set endpoint. Added:
- memory.use_cheshire_cat -> globals.USE_CHESHIRE_CAT
- runtime.mood.dm_mood -> globals.DM_MOOD + DM_MOOD_DESCRIPTION
- Uses same _GLOBALS_SYNC mapping pattern as restore_runtime_settings

bot/api.py

@@ -2978,15 +2978,27 @@ async def set_config_value(request: Request):
         from config_manager import config_manager
         config_manager.set(key_path, value, persist=persist)
         
-        # Update globals if needed
-        if key_path == "discord.language_mode":
-            globals.LANGUAGE_MODE = value
-        elif key_path == "autonomous.debug_mode":
-            globals.AUTONOMOUS_DEBUG = value
-        elif key_path == "voice.debug_mode":
-            globals.VOICE_DEBUG_MODE = value
-        elif key_path == "gpu.prefer_amd":
-            globals.PREFER_AMD_GPU = value
+        # ── Sync globals for every runtime-relevant key path ──
+        _GLOBALS_SYNC = {
+            "discord.language_mode":    ("LANGUAGE_MODE",     str),
+            "autonomous.debug_mode":    ("AUTONOMOUS_DEBUG",  bool),
+            "voice.debug_mode":         ("VOICE_DEBUG_MODE",  bool),
+            "memory.use_cheshire_cat":  ("USE_CHESHIRE_CAT",  bool),
+            "gpu.prefer_amd":           ("PREFER_AMD_GPU",    bool),
+        }
+
+        if key_path in _GLOBALS_SYNC:
+            attr, converter = _GLOBALS_SYNC[key_path]
+            setattr(globals, attr, converter(value))
+        elif key_path == "runtime.mood.dm_mood":
+            # DM mood needs description loaded alongside
+            if isinstance(value, str) and value in getattr(globals, "AVAILABLE_MOODS", []):
+                globals.DM_MOOD = value
+                try:
+                    from utils.moods import load_mood_description
+                    globals.DM_MOOD_DESCRIPTION = load_mood_description(value)
+                except Exception:
+                    globals.DM_MOOD_DESCRIPTION = f"I'm feeling {value} today."
         
         return {
             "success": True,