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/firebase/order_lay.dart

@@ -0,0 +1,35 @@
+import 'package:sefer_driver/constant/links.dart';
+import 'package:sefer_driver/controller/functions/crud.dart';
+import 'package:sefer_driver/views/home/Captin/home_captain/home_captin.dart';
+import 'package:sefer_driver/views/widgets/elevated_btn.dart';
+import 'package:flutter/material.dart';
+
+class OverlayContent1 extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Material(
+      child: Container(
+        padding: EdgeInsets.all(16.0),
+        color: Colors.white,
+        child: MyElevatedButton(
+          title: 'go to order',
+          onPressed: () async {
+            var res = await CRUD().post(
+              link: AppLink.addFeedBack,
+              payload: {
+                "passengerId": 'dddddd',
+                "feedBack": "eeeee",
+              },
+            );
+            print(res);
+            if (res != 'failure') {
+              Navigator.push(
+                  context, MaterialPageRoute(builder: (cont) => HomeCaptain()));
+              // Get.to(OrderRequestPage());
+            }
+          },
+        ),
+      ),
+    );
+  }
+}