🔄 refactor: Migrate Cache Logic to TypeScript (#9771)

* Refactor: Moved Redis cache infra logic into `packages/api`
- Moved cacheFactory and redisClients from `api/cache` into `packages/api/src/cache` so that features in `packages/api` can use cache without importing backward from the backend.
- Converted all moved files into TS with proper typing.
- Created integration tests to run against actual Redis servers for redisClients and cacheFactory.
- Added a GitHub workflow to run integration tests for the cache feature.
- Bug fix: keyvRedisClient now implements the PING feature properly.

* chore: consolidate imports in getLogStores.js

* chore: reorder imports

* chore: re-add fs-extra as dev dep.

* chore: reorder imports in cacheConfig.ts, cacheFactory.ts, and keyvMongo.ts

---------

Co-authored-by: Danny Avila <danny@librechat.ai>

redis-config/start-cluster.sh

@@ -35,7 +35,7 @@ redis-server redis-7002.conf --daemonize yes
 redis-server redis-7003.conf --daemonize yes
 
 # Wait for nodes to start
-sleep 3
+sleep 5
 
 # Check if all nodes are running
 NODES_RUNNING=0
@@ -66,10 +66,14 @@ fi
 
 # Initialize the cluster
 echo "🔧 Initializing cluster..."
-echo "yes" | redis-cli --cluster create 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 --cluster-replicas 0 > /dev/null
+echo "yes" | redis-cli --cluster create 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 --cluster-replicas 0 2>&1 | tee /tmp/cluster-init.log || {
+    echo "❌ Cluster creation command failed. Output:"
+    cat /tmp/cluster-init.log
+    exit 1
+}
 
 # Wait for cluster to stabilize
-sleep 3
+sleep 5
 
 # Verify cluster status
 if redis-cli -p 7001 cluster info | grep -q "cluster_state:ok"; then
@@ -80,5 +84,10 @@ if redis-cli -p 7001 cluster info | grep -q "cluster_state:ok"; then
     echo "  Stop: ./stop-cluster.sh"
 else
     echo "❌ Cluster initialization failed!"
+    echo "📊 Cluster info from node 7001:"
+    redis-cli -p 7001 cluster info
+    echo ""
+    echo "📊 Cluster nodes from node 7001:"
+    redis-cli -p 7001 cluster nodes
     exit 1
 fi