feat: add announcement channels, publishing and following (#3090)

fluxer_api/src/api/worker/WorkerLaneConfig.ts

@@ -96,6 +96,21 @@ const LANE_CONFIG = {
 		ackWaitMs: 120000,
 		maxDeliver: 25,
 	},
+	crosspost: {
+		consumerName: 'workers_crosspost',
+		tasks: [
+			'crosspostMessage',
+			'crosspostMessageChunk',
+			'syncCrosspostedMessage',
+			'syncCrosspostCopies',
+			'removeChannelFollowers',
+		] as const,
+		retiredTasks: [],
+		concurrency: 8,
+		maxAckPending: 64,
+		ackWaitMs: 60000,
+		maxDeliver: 25,
+	},
 } satisfies Record<APIWorkerLaneName, LaneSettings>;
 
 export type WorkerTaskName = (typeof LANE_CONFIG)[keyof typeof LANE_CONFIG]['tasks'][number];
@@ -137,6 +152,7 @@ const WORKER_LANES: ReadonlyArray<WorkerLaneDefinition> = [
 	makeLane('unfurl'),
 	makeLane('lifecycle'),
 	makeLane('batch'),
+	makeLane('crosspost'),
 ];
 const WORKER_LANE_MAP = buildWorkerLaneMap();
 const WORKER_LANE_NAMES = Object.freeze(WORKER_LANES.map((lane) => lane.name));