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/Models/IssueComment.php

@@ -14,7 +14,18 @@ class IssueComment extends Model
         'uuid', 'client_updated_at',
     ];
 
-    public function issue() { return $this->belongsTo(Issue::class); }
-    public function user()  { return $this->belongsTo(User::class); }
-    public function media() { return $this->morphMany(Media::class, 'mediable'); }
+    public function issue()
+    {
+        return $this->belongsTo(Issue::class);
+    }
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function media()
+    {
+        return $this->morphMany(Media::class, 'mediable');
+    }
 }