refactor(repo): consolidate openflare-server to root and move subprojects to internal/apps

- Merge all files inside openflare-server to the repository root directory.
- Relocate agent, relay, and flared subprojects from internal/ to internal/apps/.
- Combine docker-compose files and update build context paths to root.
- Update GitHub workflows and Dockerfiles to refer to new directories and package names.
- Rewrite Go package imports across all files.
- Resolve database renew test race condition and clean up docs.

docker-compose.yaml

@@ -1,30 +1,120 @@
 services:
+  wavelet:
+    build:
+      context: .
+      dockerfile: docker/Dockerfile
+      args:
+        VERSION: v0.9.9
+#    image: ghcr.io/rain-kl/wavelet:latest
+    restart: unless-stopped
+    env_file: .env
+    environment:
+      TZ: ${TZ:-Asia/Shanghai}
+      OTEL_EXPORTER_OTLP_ENDPOINT: ${OTEL_EXPORTER_OTLP_ENDPOINT:-http://jaeger:4317}
+      OTEL_EXPORTER_OTLP_INSECURE: ${OTEL_EXPORTER_OTLP_INSECURE:-true}
+      OTEL_SAMPLING_RATE: ${OTEL_SAMPLING_RATE:-1.0}
+    ports:
+      - "${APP_PORT:-3000}:3000"
+    volumes:
+      - ./uploads:/app/uploads
+      - ./data/sqlite:/app/data
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+      clickhouse:
+        condition: service_healthy
+      jaeger:
+        condition: service_started
+
+  postgres:
+    image: postgres:17-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB:-openflare}
+      POSTGRES_USER: ${POSTGRES_USER:-postgres}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      TZ: ${TZ:-Asia/Shanghai}
+    ports:
+      - "${POSTGRES_PORT:-5432}:5432"
+    volumes:
+      - ./data/postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-openflare}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+
+  redis:
+    image: valkey/valkey:8.0-alpine
+    restart: unless-stopped
+    command: ["valkey-server", "--appendonly", "yes"]
+    ports:
+      - "${REDIS_PORT:-6379}:6379"
+    volumes:
+      - ./data/valkey:/data
+    healthcheck:
+      test: ["CMD", "valkey-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 5s
+
+  jaeger:
+    image: jaegertracing/jaeger:${JAEGER_VERSION:-2.19.0}
+    restart: unless-stopped
+    environment:
+      TZ: ${TZ:-Asia/Shanghai}
+    ports:
+      - "${JAEGER_UI_PORT:-16686}:16686"
+      - "${JAEGER_OTLP_GRPC_PORT:-4317}:4317"
+      - "${JAEGER_OTLP_HTTP_PORT:-4318}:4318"
+
+  clickhouse:
+    image: clickhouse/clickhouse-server:25.3-alpine
+    restart: unless-stopped
+    environment:
+      CLICKHOUSE_DB: ${CLICKHOUSE_DB:-openflare}
+      CLICKHOUSE_USER: ${CLICKHOUSE_USER:-default}
+      CLICKHOUSE_PASSWORD: ${CLICKHOUSE_PASSWORD:-}
+      CLICKHOUSE_DEFAULT_ACCESS_MANAGEMENT: 1
+      TZ: ${TZ:-Asia/Shanghai}
+    ports:
+      - "${CLICKHOUSE_HTTP_PORT:-8123}:8123"
+      - "${CLICKHOUSE_NATIVE_PORT:-9000}:9000"
+    volumes:
+      - ./data/clickhouse_data:/var/lib/clickhouse
+    healthcheck:
+      test: ["CMD", "clickhouse-client", "--query", "SELECT 1"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 15s
+
   agent:
     build:
-        context: ./openflare-server
-        dockerfile: docker/Dockerfile.agent
+      context: .
+      dockerfile: docker/Dockerfile.agent
     container_name: openflare-agent
     restart: unless-stopped
-
     ports:
       - "80:80"
       - "443:443"
       - "127.0.0.1:18081:18081"
-
     volumes:
       - ./data/agent/:/data
-
     environment:
       OPENFLARE_SERVER_URL: "http://host.docker.internal:3000"
       OPENFLARE_AGENT_TOKEN: "ce5a664631a7c5c54d3406a376847535"
       LOG_LEVEL: "debug"
-
     extra_hosts:
       - "host.docker.internal:host-gateway"
 
   relay:
     build:
-      context: ./openflare-server
+      context: .
       dockerfile: docker/Dockerfile.relay
     container_name: openflare-relay
     network_mode: host
@@ -38,10 +128,9 @@ services:
     extra_hosts:
       - "host.docker.internal:host-gateway"
 
-
   flared:
     build:
-      context: ./openflare-server
+      context: .
       dockerfile: docker/Dockerfile.flared
     container_name: openflare-flared
     network_mode: "host"
@@ -51,5 +140,3 @@ services:
     environment:
       OPENFLARE_SERVER_URL: "http://host.docker.internal:3000"
       OPENFLARE_TUNNEL_TOKEN: deb0783ac1e264a9d86440169aca0f09
-
-