feat(mcp): import Codex MCP from ~/.codex/config.toml

- Support both TOML schemas: [mcp.servers.<id>] and [mcp_servers.<id>]
- Non-destructive merge of imported servers (enabled=true only)
- Preserve existing TOML schema when syncing (prefer mcp_servers)
- Remove both mcp and mcp_servers when no enabled items

feat(ui): auto-import Codex MCP on panel init (app=codex)

chore(tauri): add import_mcp_from_codex command and register

chore(types): expose window.api.importMcpFromCodex and typings

fix(ui): remove unused variable for typecheck

src/components/mcp/McpFormModal.tsx

@@ -44,7 +44,7 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
   const { t } = useTranslation();
   const [formId, setFormId] = useState(editingId || "");
   const [formDescription, setFormDescription] = useState(
-    (initialData as any)?.description || ""
+    (initialData as any)?.description || "",
   );
   const [formJson, setFormJson] = useState(
     initialData ? JSON.stringify(initialData, null, 2) : "",