Add environment configuration and documentation for various services

- Created .env.example files for Kafka, Kibana, KodBox, Kong, Langfuse, Logstash, n8n, Nginx, OceanBase, OpenCoze, RocketMQ, TiDB, and TiKV.
- Added README.md and README.zh.md files for OceanBase, RocketMQ, TiDB, and TiKV, detailing usage, configuration, and access instructions.
- Implemented docker-compose.yaml files for OceanBase, RocketMQ, TiDB, and TiKV, defining service configurations, health checks, and resource limits.
- Included broker.conf for RocketMQ to specify broker settings.
- Established a consistent timezone (UTC) across all services.
- Provided optional port overrides in .env.example files for flexibility in deployment.

src/kodbox/.env.example

@@ -0,0 +1,21 @@
+# KodBox version
+KODBOX_VERSION=1.62
+
+# Timezone
+TZ=UTC
+
+# Port
+KODBOX_PORT=80
+
+# MySQL configuration
+MYSQL_HOST=kodbox-db
+MYSQL_PORT=3306
+MYSQL_DATABASE=kodbox
+MYSQL_USER=kodbox
+MYSQL_PASSWORD=kodbox123
+MYSQL_ROOT_PASSWORD=root123
+
+# Redis configuration
+REDIS_HOST=kodbox-redis
+REDIS_PORT=6379
+REDIS_PASSWORD=