feat: add docker build commands to Makefile

Makefile

@@ -1,4 +1,4 @@
-.PHONY: build run test clean fmt lint frontend dev dev-backend dev-frontend
+.PHONY: build run test clean fmt lint frontend dev dev-backend dev-frontend docker docker-cn docker-multi
 
 BINARY_NAME=openteam
 BUILD_DIR=bin
@@ -8,6 +8,10 @@ BACKEND_DIR=backend
 build: frontend
 	cd $(BACKEND_DIR) && CGO_ENABLED=0 go build -o ../$(BUILD_DIR)/$(BINARY_NAME) ./cmd/openteam
 
+# Build backend only (frontend dist must exist)
+build-backend:
+	cd $(BACKEND_DIR) && CGO_ENABLED=0 go build -o ../$(BUILD_DIR)/$(BINARY_NAME) ./cmd/openteam
+
 # Build frontend and copy dist
 frontend:
 	cd frontend && pnpm install && pnpm build
@@ -74,3 +78,18 @@ migrate:
 # Seed data (will be implemented)
 seed:
 	@echo "Seeding will be implemented in future"
+
+# Docker build (default platform)
+docker:
+	docker build -f deploy/docker/Dockerfile -t $(BINARY_NAME):latest .
+
+# Docker build (China mirror accelerated)
+docker-cn:
+	docker build -f deploy/docker/Dockerfile.cn -t $(BINARY_NAME):latest .
+
+# Docker build multi-platform (requires: docker buildx)
+docker-multi:
+	docker buildx build -f deploy/docker/Dockerfile \
+		--platform linux/amd64,linux/arm64 \
+		-t $(BINARY_NAME):latest --push .
+

deploy/docker/Dockerfile

@@ -23,7 +23,7 @@ ENV GO111MODULE=on \
     CGO_ENABLED=0 \
     GOOS=$TARGETOS \
     GOARCH=$TARGETARCH
-RUN make build
+RUN make build-backend
 
 FROM alpine:latest AS runner
 # 设置alpine 时间为上海时间

deploy/docker/Dockerfile.cn

@@ -27,7 +27,7 @@ ENV GO111MODULE=on \
     CGO_ENABLED=0 \
     GOOS=$TARGETOS \
     GOARCH=$TARGETARCH
-RUN make build
+RUN make build-backend
 
 FROM alpine:latest AS runner
 # 设置alpine 时间为上海时间