feat: add multi-stage Dockerfile for full build with martial-tool

- Add Dockerfile.fullbuild: multi-stage build that compiles martial-tool
- Rename Dockerfile to Dockerfile.quick for quick builds (pre-built jar)
- Update docker-compose.yml to use parent directory context
- Update README with new deployment instructions

docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   # MySQL 数据库
   mysql:
@@ -84,11 +82,11 @@ services:
     networks:
       - martial-network
 
-  # 后端应用
+  # 后端应用（完整构建模式）
   martial-api:
     build:
-      context: .
-      dockerfile: Dockerfile
+      context: ..
+      dockerfile: martial-master/Dockerfile.fullbuild
     container_name: martial-api
     restart: always
     environment: