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/apache/.env.example

@@ -0,0 +1,13 @@
+# Apache version
+APACHE_VERSION=2.4.62-alpine3.20
+
+# Timezone
+TZ=UTC
+
+# Apache run user and group
+APACHE_RUN_USER=www-data
+APACHE_RUN_GROUP=www-data
+
+# Port overrides (optional)
+# APACHE_HTTP_PORT_OVERRIDE=80
+# APACHE_HTTPS_PORT_OVERRIDE=443