Fix: BadMethodCallException for getDeletedAtColumn() on models without SoftDeletes

Issue: shouldQualifyColumn() method was unconditionally calling getDeletedAtColumn()
which only exists on models using the SoftDeletes trait. This caused a fatal error
when querying models like Permission that don't use soft deletes.

Error:
BadMethodCallException: Call to undefined method Fleetbase\Models\Permission::getDeletedAtColumn()

Fix: Check if the method exists before calling it using method_exists().
Only include deleted_at column in qualifiable columns if the model uses SoftDeletes.

Impact:
- Fixes fatal error when querying Permission and other non-soft-deletable models
- Maintains backward compatibility with models that do use SoftDeletes
- No functional changes to soft-delete behavior

Author: roncodes

src/Traits/HasApiModelBehavior.php

@@ -1125,12 +1125,18 @@ private function applyOperators($builder, $column_name, $op_key, $op_type, $valu
      */
     public function shouldQualifyColumn($column_name)
     {
-        return in_array($column_name, [
+        $qualifiableColumns = [
             $this->getKey() ?? 'uuid',
             $this->getCreatedAtColumn() ?? 'created_at',
             $this->getUpdatedAtColumn() ?? 'updated_at',
-            $this->getDeletedAtColumn() ?? 'deleted_at',
-        ]);
+        ];
+
+        // Only include deleted_at column if model uses SoftDeletes trait
+        if (method_exists($this, 'getDeletedAtColumn')) {
+            $qualifiableColumns[] = $this->getDeletedAtColumn();
+        }
+
+        return in_array($column_name, $qualifiableColumns);
     }
 
     /**