Refactor Langfuse configuration and documentation

- Updated .env.example with new service versions and added detailed configuration options for PostgreSQL, ClickHouse, MinIO, and Redis.
- Enhanced README.md and README.zh.md for clearer setup instructions and environment variable descriptions.
- Modified docker-compose.yaml to improve service definitions, health checks, and resource limits for all components.
- Changed MinIO image to Chainguard's production-ready version and updated default credentials.
- Improved health check commands for Phoenix service in docker-compose.yaml.

src/minio/.env.example

@@ -1,14 +1,13 @@
-# MinIO Version
-MINIO_VERSION=RELEASE.2025-09-07T16-13-09Z
+# MinIO Version (Chainguard Image)
+MINIO_VERSION=0.20251015
 
-# MinIO credentials
-MINIO_ROOT_USER=root
-MINIO_ROOT_PASSWORD=password123
-
-# Optional: Legacy access key/secret (use root user/password instead)
-MINIO_ACCESS_KEY=
-MINIO_SECRET_KEY=
+# MinIO Root User Credentials
+MINIO_ROOT_USER=minioadmin
+MINIO_ROOT_PASSWORD=minioadmin
 
 # Ports
 MINIO_PORT_OVERRIDE_API=9000
 MINIO_PORT_OVERRIDE_WEBUI=9001
+
+# Timezone
+TZ=UTC