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/tidb/docker-compose.yaml

@@ -0,0 +1,105 @@
+x-default: &default
+  restart: unless-stopped
+  logging:
+    driver: json-file
+    options:
+      max-size: 100m
+      max-file: "3"
+
+services:
+  pd:
+    <<: *default
+    image: pingcap/pd:${TIDB_VERSION:-v8.5.0}
+    command:
+      - --name=pd
+      - --client-urls=http://0.0.0.0:2379
+      - --peer-urls=http://0.0.0.0:2380
+      - --advertise-client-urls=http://pd:2379
+      - --advertise-peer-urls=http://pd:2380
+      - --data-dir=/data
+    environment:
+      TZ: ${TZ:-UTC}
+    volumes:
+      - pd_data:/data
+    ports:
+      - "${TIDB_PD_PORT_OVERRIDE:-2379}:2379"
+    deploy:
+      resources:
+        limits:
+          cpus: '1.0'
+          memory: 1G
+        reservations:
+          cpus: '0.25'
+          memory: 512M
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q -O - http://localhost:2379/health || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 30s
+
+  tikv:
+    <<: *default
+    image: pingcap/tikv:${TIDB_VERSION:-v8.5.0}
+    command:
+      - --addr=0.0.0.0:20160
+      - --advertise-addr=tikv:20160
+      - --pd=http://pd:2379
+      - --data-dir=/data
+    environment:
+      TZ: ${TZ:-UTC}
+    volumes:
+      - tikv_data:/data
+    ports:
+      - "${TIDB_TIKV_PORT_OVERRIDE:-20160}:20160"
+    depends_on:
+      pd:
+        condition: service_healthy
+    deploy:
+      resources:
+        limits:
+          cpus: '2.0'
+          memory: 2G
+        reservations:
+          cpus: '0.5'
+          memory: 1G
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q -O - http://localhost:20180/status || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 60s
+
+  tidb:
+    <<: *default
+    image: pingcap/tidb:${TIDB_VERSION:-v8.5.0}
+    command:
+      - --store=tikv
+      - --path=pd:2379
+      - --advertise-address=tidb
+    environment:
+      TZ: ${TZ:-UTC}
+    ports:
+      - "${TIDB_PORT_OVERRIDE:-4000}:4000"
+      - "${TIDB_STATUS_PORT_OVERRIDE:-10080}:10080"
+    depends_on:
+      tikv:
+        condition: service_healthy
+    deploy:
+      resources:
+        limits:
+          cpus: '2.0'
+          memory: 2G
+        reservations:
+          cpus: '0.5'
+          memory: 512M
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q -O - http://localhost:10080/status || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 30s
+
+volumes:
+  pd_data:
+  tikv_data: