fix(ci): stagger builds in stages and add retry for Harbor load

Split 3 builds into 2 stages (2+1) and add retry: 2.

Co-Authored-By: Claude <noreply@anthropic.com>

.gitlab-ci.yml

@@ -1,5 +1,6 @@
 stages:
-  - build
+  - build-1
+  - build-2
 
 variables:
   HARBOR_REGISTRY: harbor-in-k3s.cheverjohn.me
@@ -10,10 +11,10 @@ variables:
   DOCKER_CERT_PATH: /certs/client
 
 .build-template: &build-template
-  stage: build
   image: docker:27
   services:
     - docker:27-dind
+  retry: 2
   before_script:
     - until docker info >/dev/null 2>&1; do echo "Waiting for Docker daemon..."; sleep 2; done
     - echo "$HARBOR_PASSWORD" | docker login $HARBOR_REGISTRY -u "$HARBOR_USER" --password-stdin
@@ -32,18 +33,21 @@ variables:
 
 build-muyu-gateway:
   <<: *build-template
+  stage: build-1
   variables:
     IMAGE_NAME: muyu-gateway
     DOCKERFILE_PATH: deploy/Dockerfile.gateway
 
 build-muyu-system-rpc:
   <<: *build-template
+  stage: build-1
   variables:
     IMAGE_NAME: muyu-system-rpc
     DOCKERFILE_PATH: deploy/Dockerfile.system
 
 build-muyu-inventory-rpc:
   <<: *build-template
+  stage: build-2
   variables:
     IMAGE_NAME: muyu-inventory-rpc
     DOCKERFILE_PATH: deploy/Dockerfile.inventory