refactor: update OTP system to support user-specific verification tables with legacy encryption and multi-role authentication.

app/Http/Middleware/HmacAuthMiddleware.php

@@ -159,7 +159,17 @@ class HmacAuthMiddleware
                 ->where('api_key', $apiKey)
                 ->first();
 
-            return $admin;
+            if ($admin) return $admin;
+
+            // Check service customers/employees (users table)
+            $serviceUser = DB::connection('primary')
+                ->table('users')
+                ->select('id as user_id', 'api_secret')
+                ->selectRaw("'service_user' as user_type")
+                ->where('api_key', $apiKey)
+                ->first();
+
+            return $serviceUser;
         });
     }
 }