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/templates/index.html

@@ -140,7 +140,7 @@
 </div>
 
 <script>
-// Переменные из Jinja2 для app.js
+// Переменные из Jinja2 для фронтенда
 window.APP = {
   version: "{{ config.VERSION | tojson }}",
   stand: "{{ stand | tojson }}",
@@ -148,6 +148,15 @@ window.APP = {
   firstServiceId: {{ (config.service_ids[0] if config.service_ids else 1) | tojson }}
 };
 </script>
+<script src="{{ url_for('static', filename='js/utils.js') }}"></script>
+<script src="{{ url_for('static', filename='js/instances.js') }}"></script>
+<script src="{{ url_for('static', filename='js/operations.js') }}"></script>
+<script src="{{ url_for('static', filename='js/history.js') }}"></script>
+<script src="{{ url_for('static', filename='js/scenario-form.js') }}"></script>
+<script src="{{ url_for('static', filename='js/scenario-create.js') }}"></script>
+<script src="{{ url_for('static', filename='js/scenario-edit.js') }}"></script>
+<script src="{{ url_for('static', filename='js/scenario-delete.js') }}"></script>
+<script src="{{ url_for('static', filename='js/scenario-list.js') }}"></script>
 <script src="{{ url_for('static', filename='app.js') }}"></script>
 
 <div id="log-panel" style="display:none;position:fixed;bottom:0;left:0;right:0;height:180px;background:#1e1e1e;color:#d4d4d4;font:11px monospace;overflow-y:auto;padding:6px 10px;border-top:2px solid #555;z-index:9999;"></div>