added licensing stuff and free trial timer

frontend/src/lib/tauri-bridge.ts

@@ -96,4 +96,20 @@ window.electronAPI = {
     await writeTextFile(path, content);
     return true;
   },
+
+  activateLicense: (key: string): Promise<any> => {
+    return invoke('activate_license', { licenseKey: key });
+  },
+
+  getAppStatus: (): Promise<any> => {
+    return invoke('get_app_status');
+  },
+
+  deactivateLicense: (): Promise<void> => {
+    return invoke('deactivate_license');
+  },
+
+  hasLicenseFeature: (feature: string): Promise<boolean> => {
+    return invoke('has_license_feature', { feature });
+  },
 };