Fix string truncation overflow across the system

Audited all varchar-limited columns vs code that generates values for them:

- BranchForm: validation was max:20 but column is varchar(10) — fixed
- ActivityService: Str::slug output now capped at 90 chars (column is 100)
- TrainingProgramService: same slug truncation fix
- SetupWizard: slug generation for activities/programs also truncated
- Logout: removed navigate:true (app→guest layout cross breaks)

Affected columns and their limits:
  branches.code = varchar(10) ✓ fixed
  training_groups.code = varchar(10) ✓ already validated
  activities.slug = varchar(100) ✓ now truncated
  training_programs.slug = varchar(100) ✓ now truncated
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Domain/Training/Services/ActivityService.php

@@ -13,12 +13,12 @@ class ActivityService
     public function create(array $data, User $actor): Activity
     {
         return DB::transaction(function () use ($data, $actor) {
-            $slug = $data['slug'] ?? Str::slug($data['name']);
+            $slug = Str::limit($data['slug'] ?? Str::slug($data['name']), 90, '');
 
             // Check slug uniqueness within academy
             $exists = Activity::where('slug', $slug)->exists();
             if ($exists) {
-                $slug .= '-' . Str::random(4);
+                $slug = Str::limit($slug, 85, '') . '-' . Str::random(4);
             }
 
             return Activity::create([

app/Domain/Training/Services/TrainingProgramService.php

@@ -13,10 +13,10 @@ class TrainingProgramService
     public function create(array $data, User $actor): TrainingProgram
     {
         return DB::transaction(function () use ($data, $actor) {
-            $slug = $data['slug'] ?? Str::slug($data['name']);
+            $slug = Str::limit($data['slug'] ?? Str::slug($data['name']), 90, '');
             $exists = TrainingProgram::where('slug', $slug)->exists();
             if ($exists) {
-                $slug .= '-' . Str::random(4);
+                $slug = Str::limit($slug, 85, '') . '-' . Str::random(4);
             }
 
             return TrainingProgram::create(array_merge($data, [

app/Livewire/Auth/Logout.php

@@ -13,7 +13,7 @@ public function logout(): void
         session()->invalidate();
         session()->regenerateToken();
 
-        $this->redirect(route('login'), navigate: true);
+        $this->redirect(route('login'));
     }
 
     public function render()

app/Livewire/Branches/BranchForm.php

@@ -68,7 +68,7 @@ public function rules(): array
         return [
             'name' => 'required|string|max:255',
             'name_ar' => 'required|string|max:255',
-            'code' => 'required|string|max:20',
+            'code' => 'required|string|max:10',
             'phone' => 'nullable|string|max:20',
             'email' => 'nullable|email|max:255',
             'address' => 'nullable|string',

app/Livewire/Wizards/SetupWizard.php

@@ -374,7 +374,7 @@ public function completeSetup(): void
                     'academy_id' => $academyId,
                     'name_ar' => $activityData['name_ar'],
                     'name' => $activityData['name'] ?: $activityData['name_ar'],
-                    'slug' => Str::slug($activityData['name_ar']),
+                    'slug' => Str::limit(Str::slug($activityData['name_ar']), 90, ''),
                     'category' => $activityData['category'],
                     'description' => $activityData['description'] ?? null,
                     'is_active' => true,
@@ -394,7 +394,7 @@ public function completeSetup(): void
                         'activity_id' => $activity->id,
                         'name_ar' => $programData['name_ar'],
                         'name' => $programData['name_ar'],
-                        'slug' => Str::slug($programData['name_ar']),
+                        'slug' => Str::limit(Str::slug($programData['name_ar']), 90, ''),
                         'program_duration_weeks' => $durationMonths * 4,
                         'max_participants' => (int) $programData['max_participants'],
                         'status' => 'active',