add freeze feature to rundown (#1106)

* add frozen flag to runtime store

* add middleware for when frozen

* prevent rundown editing when frozen

* add endpoint to router to set frozen state

* add frozen property to rundown placeholder in client

apps/server/src/services/rundown-service/RundownService.ts

@@ -21,6 +21,7 @@ import { runtimeService } from '../runtime-service/RuntimeService.js';
 
 import * as cache from './rundownCache.js';
 import { getPlayableEvents } from './rundownUtils.js';
+import { eventStore } from '../../stores/EventStore.js';
 
 type PatchWithId = (Partial<OntimeEvent> | Partial<OntimeBlock> | Partial<OntimeDelay>) & { id: string };
 
@@ -262,3 +263,7 @@ export async function initRundown(rundown: Readonly<OntimeRundown>, customFields
   // notify timer of change
   notifyChanges({ timer: true });
 }
+
+export async function setFrozenState(state: boolean) {
+  eventStore.set('frozen', state);
+}