feat(backend): complete Modules 2 + 3 (geo + user management)

Module 2 — Geographic Data: PSGC tables (regions/provinces/cities/
barangays) with native geometry(polygon|point, 4326) columns; cascading
dropdown endpoints; ST_Contains-based GPS resolution; service-area CRUD
with barangay attach/detach; SamplePsgcSeeder + psgc:import command.

Module 3 — User Management: 5 role-specific profile tables (driver/
helper/scanner/store_partner with verification_status + rejection
reason); profile auto-created on register; admin user CRUD with
filters/pagination, suspend/activate, profile approve/reject;
self-service /me + /me/profile with role-aware validation that blocks
self-approval and resets rejected profiles to pending on resubmit.

69 feature tests passing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/Http/Requests/Admin/UpdateUserRequest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Http\Requests\Admin;
+
+use App\Models\User;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class UpdateUserRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        $userId = $this->route('user')?->id;
+
+        return [
+            'first_name' => ['sometimes', 'required', 'string', 'max:100'],
+            'middle_name' => ['sometimes', 'nullable', 'string', 'max:100'],
+            'last_name' => ['sometimes', 'required', 'string', 'max:100'],
+            'email' => [
+                'sometimes', 'required', 'email', 'max:191',
+                Rule::unique('users', 'email')->whereNull('deleted_at')->ignore($userId),
+            ],
+            'phone' => [
+                'sometimes', 'required', 'string', 'regex:/^\+?[0-9]{10,15}$/',
+                Rule::unique('users', 'phone')->whereNull('deleted_at')->ignore($userId),
+            ],
+            'preferred_language' => ['sometimes', 'string', 'in:en,tl,ceb'],
+            'status' => ['sometimes', Rule::in([
+                User::STATUS_ACTIVE,
+                User::STATUS_SUSPENDED,
+                User::STATUS_PENDING,
+            ])],
+        ];
+    }
+}