chore: remove leftover Redis infrastructure code

Dokploy stopped using Redis in v0.29.9 when the deployment queue moved
to an in-memory implementation, and install.sh no longer creates the
dokploy-redis service. Remove the remaining references so fresh installs
don't report Redis as unhealthy:

- checkRedisHealth from infrastructure health check
- cleanRedis/reloadRedis endpoints and their UI actions
- initializeRedis dev setup and redis-connection config
- unused bullmq dependency

apps/dokploy/package.json

@@ -86,7 +86,6 @@
 		"better-auth": "1.6.23",
 		"bl": "6.0.11",
 		"boxen": "^7.1.1",
-		"bullmq": "5.67.3",
 		"class-variance-authority": "^0.7.1",
 		"clsx": "^2.1.1",
 		"cmdk": "^0.2.1",