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/db/init_db.py

@@ -159,6 +159,23 @@ def init_db():
         conn.commit()
         cur.close()
         print("[DB] Schema initialized", flush=True)
+
+        # Startup cleanup: зависшие RUNNING сценарии старше 1 часа → TIMEOUT
+        try:
+            cur = conn.cursor()
+            cur.execute("""
+                UPDATE scenario_runs
+                SET status = 'TIMEOUT', error_log = 'worker restart'
+                WHERE status = 'RUNNING'
+                  AND created_at < NOW() - INTERVAL '1 hour'
+            """)
+            if cur.rowcount:
+                print(f"[DB] Cleaned up {cur.rowcount} stuck scenario_runs", flush=True)
+            conn.commit()
+            cur.close()
+        except Exception as e:
+            print(f"[DB] Cleanup error: {e}", flush=True)
+            conn.rollback()
     except Exception as e:
         print(f"[DB] Init error: {e}", flush=True)
         conn.rollback()