v1.2.0: unified executor + flexible instance refs + params-render.js

Phase 1 — New modules:
- api/utils.py: find_uid(), uid_from_location() (replaces 2 duplicates)
- operations/poll.py: poll_until_done() (shared sync/async polling)
- operations/executor.py: execute_operation() (single CREATE/non-CREATE flow)

Phase 2 — Format + validation:
- routes/api_scenario_defs.py: _validate_steps with output/instance_ref/instance_uid
- operations/scenario.py: resolve instance_uid > instance_ref > service_id,
  use executor + poll_until_done, persist instance_bindings

Phase 3 — Migration:
- routes/api_test.py: create/non-create through executor, _finish_op through poll_until_done
- db/init_db.py: startup cleanup of stuck scenario_runs (>1h)

Phase 4 — UI shared module:
- static/js/params-render.js: renderParamRow, renderMapFixedRow, collectParams
- static/js/operations.js: use params-render.js (remove duplicates)
- templates/index.html: include params-render.js
- app.py: bump 1.1.57 → 1.2.0

site/api/utils.py

@@ -0,0 +1,45 @@
+"""
+Общие утилиты: извлечение UUID из ответов API Nubes.
+
+Используется: api_test.py, scenario.py, executor.py.
+Заменяет разрозненные реализации _find_uid / _uid_from_location.
+"""
+
+
+def find_uid(resp):
+    """Извлечь instanceUid или instanceOperationUid из ответа API.
+
+    Ищет в нескольких местах:
+      1. На верхнем уровне: instanceOperationUid → instanceUid → uid → Uid
+      2. Во вложенных dict-значениях: {key: {instanceOperationUid: ..., instanceUid: ...}}
+    """
+    if not isinstance(resp, dict):
+        return None
+    # Верхний уровень — прямые ключи (api_test.py-стиль)
+    for key in ("instanceOperationUid", "instanceUid", "uid", "Uid"):
+        v = resp.get(key)
+        if isinstance(v, str) and v:
+            return v
+    # Вложенные dict-значения (scenario.py-стиль)
+    for v in resp.values():
+        if isinstance(v, dict):
+            uid = v.get("instanceOperationUid") or v.get("instanceUid")
+            if uid:
+                return uid
+    return None
+
+
+def uid_from_location(loc):
+    """Извлечь UUID из Location-заголовка.
+
+    Location бывает: "./UUID", "/api/v1/svc/instances/UUID", "/api/v1/svc/instanceOperations/UUID"
+    Берём последний сегмент после split("/").
+    """
+    if not loc:
+        return None
+    parts = str(loc).rstrip("/").split("/")
+    uid = parts[-1]
+    # UUID — 36 символов с 4 дефисами (уже проверено в http_client.py)
+    if uid and uid != "." and len(uid) >= 32:
+        return uid
+    return None