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)

resources/utils/countries.php

@@ -1,4 +1,5 @@
 <?php
+
 $paises = [
     'AF' => 'Afganistán',
     'AX' => 'Islas Åland',
@@ -249,6 +250,5 @@ $paises = [
     'BQ' => 'Bonaire, San Eustaquio y Saba',
     'CW' => 'Curazao',
     'MF' => 'San Martín (parte francesa)',
-    'SX' => 'San Martín (parte neerlandesa)'
+    'SX' => 'San Martín (parte neerlandesa)',
 ];
-?>