feat: Gemini AI (doc OCR + face match) + role-assignment endpoints

- GeminiService (integrations/gemini, @Global): extractDocument (OCR fields) + faceMatch; graceful if no GEMINI_API_KEY
- documents: face-match now real via Gemini; POST /admin/documents/:id/ocr extracts fields for CS auto-fill
- roles: PATCH /admin/users/:id/role (admin) + POST /platform/users/role (bootstrap via x-platform-secret)
- config: gemini + platform.secret; .env.example entries

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/driver/lib/controller/functions/vibrate.dart

@@ -0,0 +1,15 @@
+import 'package:get/get.dart';
+
+import '../../constant/box_name.dart';
+import '../../main.dart';
+
+class HomePageController extends GetxController {
+  late bool isVibrate = box.read(BoxName.isvibrate) ?? true;
+
+  void changeVibrateOption(bool value) {
+    isVibrate = box.read(BoxName.isvibrate) ?? true;
+    isVibrate = value;
+    box.write(BoxName.isvibrate, value);
+    update();
+  }
+}