{"status": "healthy", "service": "lmcache", "version": "0.3.0", "framework": "LMCache KV Cache Optimization Layer", "hit_rate_pct": 91.4, "mean_ttft_ms": 18.4, "tiers": {"l1_memory_mb": 1680, "l2_redis_mb": 2160, "l3_s3_mb": 960}, "engines_connected": ["vllm", "litellm-proxy"], "non_prefix_reuse": true}