Archive summary refinements and profile switching

MeetingAssistant/appsettings.json

@@ -2,7 +2,7 @@
   "MeetingAssistant": {
     "Hotkey": {
       "Toggle": "Ctrl+Alt+M",
-      "Abort": "Ctrl+Alt+D"
+      "Abort": "Ctrl+Alt+Z"
     },
     "Vault": {
       "BaseFolder": "%USERPROFILE%\\OpenCloud\\Persönlich\\Vault\\Exxeta",
@@ -125,7 +125,7 @@
     "Agent": {
       "Endpoint": "https://litellm.schweigert.cloud",
       "KeyEnv": "LITELLM_API_KEY",
-      "Model": "copilot-gpt-5.5",
+      "Model": "chatgpt/gpt-5.5",
       "EnableThinking": true,
       "ReasoningEffort": "Medium",
       "ReconnectionAttempts": 2,