chore: cleanup dead code + format with Pint

- Remove unused FeaturesController (empty stubs, no routes)
- Remove ConvertSpatialFile CLI command (unused; service used in LayerManager)
- Remove MigrateGeojsonToFeatures CLI command (one-shot migration, not referenced)
- Remove .claude/worktrees/ (11 old agent worktrees from June)
- Apply Laravel Pint formatting across 219 files (style only, no functional changes)

Tests: 101 passing (319 assertions)
API routes: unchanged (8 routes intact)

app/Livewire/Common/NotificationBell.php

@@ -2,13 +2,15 @@
 
 namespace App\Livewire\Common;
 
-use Livewire\Component;
 use Illuminate\Support\Facades\Auth;
+use Livewire\Component;
 
 class NotificationBell extends Component
 {
     public $notifications = [];
+
     public $unreadCount = 0;
+
     public $showDropdown = false;
 
     public function mount()