v1.1.55: split large files + CRUD scenario editor

Backend (5→7 files):
- api_test.py: 622→479, terraform functions → operations/terraform.py (142)
- api_scenario.py: 241→split into run (153) + defs (108) with _validate_steps()
- db/scenario_defs.py: +client_id, stand, is_seed in list_definitions

Frontend (1→10 files):
- app.js: 554→16 (loader), split into:
  utils.js (45), instances.js (89), operations.js (249),
  history.js (35), scenario-list.js (90)
- New CRUD: scenario-form.js (128), create (25), edit (12), delete (13)

Max file size: JS 249, PY 479

site/operations/scenario.py

@@ -134,8 +134,8 @@ def run_scenario(client, steps, client_id, stand, user_email, app_version, scena
                 raise RuntimeError(f"No opUid in response: {json.dumps(op_resp)[:200]}")
 
             # Отправить параметры и запустить
-            from routes.api_test import _send_params_terraform
-            _send_params_terraform(client, op_uid, resolved_params)
+            from operations.terraform import send_params_terraform
+            send_params_terraform(client, op_uid, resolved_params)
             client.post(f"/instanceOperations/{op_uid}/run")
 
             # 5. Сохранить RUNNING в runs ДО поллинга