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/Http/Controllers/Reports/ExportController.php

@@ -2,15 +2,12 @@
 
 namespace App\Http\Controllers\Reports;
 
-use App\Http\Controllers\Controller;
-use App\Models\Project;
-use App\Models\Phase;
-use App\Models\Inspection;
-use Maatwebsite\Excel\Facades\Excel;
-use App\Exports\ProjectsExport;
-use App\Exports\PhasesExport;
 use App\Exports\InspectionsExport;
+use App\Exports\PhasesExport;
+use App\Exports\ProjectsExport;
+use App\Http\Controllers\Controller;
 use Illuminate\Http\Request;
+use Maatwebsite\Excel\Facades\Excel;
 
 class ExportController extends Controller
 {