[SSE] Event stream TTL refresh (#17337)

This PR update the redis subscription iterator wrapper with an heartbeat
system. Heartbeat interval are based on event stream TTL. Those refresh
the event stream TTL and active streams in redis.

I also cleaned a few functions that were not used anymore.

---------

Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

packages/twenty-server/src/engine/core-modules/cache-storage/services/cache-storage.service.ts

@@ -245,6 +245,25 @@ export class CacheStorageService {
     return newValue;
   }
 
+  async expire(key: string, ttlMs: Milliseconds): Promise<boolean> {
+    if (this.isRedisCache()) {
+      return (this.cache as RedisCache).store.client.expire(
+        this.getKey(key),
+        ttlMs / 1000,
+      );
+    }
+
+    const existing = await this.get(key);
+
+    if (existing !== undefined) {
+      await this.set(key, existing, ttlMs);
+
+      return true;
+    }
+
+    return false;
+  }
+
   private isRedisCache() {
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     return (this.cache.store as any)?.name === 'redis';