全局重命名：kefu_sys / kefu-sys 改为 kefu_cloud / kefu-cloud

- Go module 与全部 import 路径
- 数据库默认库名、Docker 服务/卷命名与部署文档

docker-compose.prod.yml

@@ -2,23 +2,23 @@
 # 使用：./deploy/scripts/deploy.sh
 # 或：docker compose -f docker-compose.prod.yml --env-file deploy/.env.prod up -d --build
 
-name: kefu-prod
+name: kefu-cloud
 
 services:
   postgres:
     image: postgres:16-alpine
-    container_name: kefu-prod-db
+    container_name: kefu-cloud-db
     restart: unless-stopped
     environment:
       POSTGRES_USER: ${DB_USER:-kefu}
       POSTGRES_PASSWORD: ${DB_PASSWORD:?请在 deploy/.env.prod 设置 DB_PASSWORD}
-      POSTGRES_DB: ${DB_NAME:-kefu_sys}
+      POSTGRES_DB: ${DB_NAME:-kefu_cloud}
     volumes:
-      - kefu_pgdata:/var/lib/postgresql/data
+      - kefu_cloud_pgdata:/var/lib/postgresql/data
     networks:
-      - kefu_net
+      - kefu_cloud_net
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${DB_USER:-kefu} -d ${DB_NAME:-kefu_sys}"]
+      test: ["CMD-SHELL", "pg_isready -U ${DB_USER:-kefu} -d ${DB_NAME:-kefu_cloud}"]
       interval: 10s
       timeout: 5s
       retries: 10
@@ -26,27 +26,27 @@ services:
 
   minio:
     image: minio/minio:latest
-    container_name: kefu-prod-minio
+    container_name: kefu-cloud-minio
     restart: unless-stopped
     command: server /data --console-address ":9001"
     environment:
       MINIO_ROOT_USER: ${STORAGE_ACCESS_KEY:?请设置 STORAGE_ACCESS_KEY}
       MINIO_ROOT_PASSWORD: ${STORAGE_SECRET_KEY:?请设置 STORAGE_SECRET_KEY}
     volumes:
-      - kefu_miniodata:/data
+      - kefu_cloud_miniodata:/data
     networks:
-      - kefu_net
+      - kefu_cloud_net
     # 官方镜像极简，无 curl/bash；由 minio-init 重试建桶保证就绪
 
   minio-init:
     image: minio/mc:latest
-    container_name: kefu-prod-minio-init
+    container_name: kefu-cloud-minio-init
     depends_on:
       minio:
         condition: service_started
     restart: "no"
     networks:
-      - kefu_net
+      - kefu_cloud_net
     entrypoint: >
       /bin/sh -c "
       set -e;
@@ -70,8 +70,8 @@ services:
     build:
       context: .
       dockerfile: deploy/docker/Dockerfile.api
-    image: kefu-api:${IMAGE_TAG:-latest}
-    container_name: kefu-prod-api
+    image: kefu-cloud-api:${IMAGE_TAG:-latest}
+    container_name: kefu-cloud-api
     restart: unless-stopped
     depends_on:
       postgres:
@@ -85,7 +85,7 @@ services:
       DB_PORT: "5432"
       DB_USER: ${DB_USER:-kefu}
       DB_PASSWORD: ${DB_PASSWORD}
-      DB_NAME: ${DB_NAME:-kefu_sys}
+      DB_NAME: ${DB_NAME:-kefu_cloud}
       DB_SSLMODE: ${DB_SSLMODE:-disable}
       JWT_SECRET: ${JWT_SECRET:?请设置 JWT_SECRET}
       STORAGE_ENDPOINT: minio:9000
@@ -100,15 +100,15 @@ services:
       STORAGE_MAX_IMAGE_EDGE: ${STORAGE_MAX_IMAGE_EDGE:-1920}
       STORAGE_WEBP_QUALITY: ${STORAGE_WEBP_QUALITY:-80}
     networks:
-      - kefu_net
+      - kefu_cloud_net
     # 不对外暴露 8080，统一走 nginx
 
   web:
     build:
       context: .
       dockerfile: deploy/docker/Dockerfile.web
-    image: kefu-web:${IMAGE_TAG:-latest}
-    container_name: kefu-prod-web
+    image: kefu-cloud-web:${IMAGE_TAG:-latest}
+    container_name: kefu-cloud-web
     restart: unless-stopped
     depends_on:
       api:
@@ -118,13 +118,13 @@ services:
     ports:
       - "${HTTP_PORT:-80}:80"
     networks:
-      - kefu_net
+      - kefu_cloud_net
 
   # 可选：导入演示数据（profile seed）
   # docker compose -f docker-compose.prod.yml --env-file deploy/.env.prod --profile seed run --rm seed
   seed:
-    image: kefu-api:${IMAGE_TAG:-latest}
-    container_name: kefu-prod-seed
+    image: kefu-cloud-api:${IMAGE_TAG:-latest}
+    container_name: kefu-cloud-seed
     profiles: ["seed"]
     depends_on:
       api:
@@ -134,7 +134,7 @@ services:
       DB_PORT: "5432"
       DB_USER: ${DB_USER:-kefu}
       DB_PASSWORD: ${DB_PASSWORD}
-      DB_NAME: ${DB_NAME:-kefu_sys}
+      DB_NAME: ${DB_NAME:-kefu_cloud}
       DB_SSLMODE: ${DB_SSLMODE:-disable}
       JWT_SECRET: ${JWT_SECRET}
       STORAGE_ENDPOINT: minio:9000
@@ -145,13 +145,13 @@ services:
       STORAGE_PUBLIC_BASE_URL: ${STORAGE_PUBLIC_BASE_URL}
     entrypoint: ["/app/seed"]
     networks:
-      - kefu_net
+      - kefu_cloud_net
     restart: "no"
 
 networks:
-  kefu_net:
+  kefu_cloud_net:
     driver: bridge
 
 volumes:
-  kefu_pgdata:
-  kefu_miniodata:
+  kefu_cloud_pgdata:
+  kefu_cloud_miniodata: