[infra] CI 優化：backend unit test 改用 native Go，移除 artifact roundtrip

.github/workflows/ci.test.mjs

@@ -55,37 +55,46 @@ test('frontend CI job runs the frontend test command', async () => {
   )
 })
 
-test('backend CI job runs go test and go vet via docker compose prebuilt image', async () => {
+test('backend CI job runs go test and go vet natively from services/api', async () => {
   const workflow = await readFile(workflowPath, 'utf8')
   const backendJob = workflowJobBlock(workflow, 'backend')
 
   assert.match(
     backendJob,
-    /- name: Run tests\n\s+run: docker compose run --pull never --no-deps --rm app go test \.\/\.\.\./,
+    /uses: actions\/setup-go@v6\n\s+with:\n\s+go-version-file: services\/api\/go\.mod/,
   )
 
   assert.match(
     backendJob,
-    /- name: Run vet\n\s+run: docker compose run --pull never --no-deps --rm app go vet \.\/\.\.\./,
+    /- name: Run tests\n\s+working-directory: services\/api\n\s+run: go test \.\/\.\.\./,
   )
+
+  assert.match(
+    backendJob,
+    /- name: Run vet\n\s+working-directory: services\/api\n\s+run: go vet \.\/\.\.\./,
+  )
+
+  assert.doesNotMatch(backendJob, /actions\/download-artifact|docker load|backend-image/)
 })
 
 test('backend CI vet assertion does not match vet steps from later jobs', () => {
   const workflow = `  backend:
     steps:
       - name: Run tests
-        run: docker compose run --pull never --no-deps --rm app go test ./...
+        working-directory: services/api
+        run: go test ./...
 
   frontend:
     steps:
       - name: Run vet
-        run: docker compose run --pull never --no-deps --rm app go vet ./...
+        working-directory: services/api
+        run: go vet ./...
 `
   const backendJob = workflowJobBlock(workflow, 'backend')
 
   assert.doesNotMatch(
     backendJob,
-    /- name: Run vet\n\s+run: docker compose run --pull never --no-deps --rm app go vet \.\/\.\.\./,
+    /- name: Run vet\n\s+working-directory: services\/api\n\s+run: go vet \.\/\.\.\./,
   )
 })
 
@@ -216,6 +225,16 @@ test('docs/template-only PRs skip heavy product CI in scope gate', async () => {
     workflow,
     /Skipping heavy product CI because this PR only changes docs\/templates\/metadata\./,
   )
+  assert.doesNotMatch(
+    workflow,
+    /name\.startsWith\('\.github\/workflows\/'\)/,
+    'workflow changes must not be classified as metadata-only because they need CI validation',
+  )
+  assert.match(
+    workflow,
+    /\^\\.github\\\/workflows\\\/ci\\.yml\$/,
+    'ci.yml changes must request backend integration validation',
+  )
 })
 
 test('global auto-merge workflow excludes Dependabot PRs', async () => {

.github/workflows/ci.yml

@@ -237,46 +237,32 @@ jobs:
         with:
           context: ./services/api
           target: dev
-          load: true
+          load: false
           tags: tachigo-app:latest
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
-      - name: Export image artifact
-        run: |
-          set -euo pipefail
-          docker save tachigo-app:latest | gzip -c > tachigo-app.tar.gz
-          test -s tachigo-app.tar.gz
-
-      - name: Upload image artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: backend-image
-          path: tachigo-app.tar.gz
-          retention-days: 1
-
   backend:
     timeout-minutes: 10
     name: Backend tests
-    needs: [scope-gate, backend-build]
+    needs: [scope-gate]
     if: github.event_name == 'push' || needs.scope-gate.outputs.run_ci == 'true'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
-      - name: Download image artifact
-        uses: actions/download-artifact@v4
+      - name: Set up Go
+        uses: actions/setup-go@v6
         with:
-          name: backend-image
-
-      - name: Load backend image
-        run: docker load < tachigo-app.tar.gz
+          go-version-file: services/api/go.mod
 
       - name: Run tests
-        run: docker compose run --pull never --no-deps --rm app go test ./...
+        working-directory: services/api
+        run: go test ./...
 
       - name: Run vet
-        run: docker compose run --pull never --no-deps --rm app go vet ./...
+        working-directory: services/api
+        run: go vet ./...
 
   backend-integration:
     timeout-minutes: 20

scripts/check-backend-ci-cache.sh

@@ -33,7 +33,15 @@ require_in "$workflow" "context: ./services/api" "backend CI should build from s
 require_in "$workflow" "target: dev" "backend CI should build the same dev target used by docker compose tests"
 require_in "$workflow" "cache-from: type=gha" "backend CI should restore Docker layers from GitHub Actions cache"
 require_in "$workflow" "cache-to: type=gha,mode=max" "backend CI should save Docker layers to GitHub Actions cache"
-require_in "$workflow" "load: true" "backend CI should load the cached image into the local Docker daemon"
+require_in "$workflow" "load: false" "backend build should validate Docker cache without loading the image"
 require_in "$workflow" "tags: tachigo-app:latest" "backend CI should tag the image used by docker compose"
-require_in "$workflow" "docker compose run --pull never --no-deps --rm app go test ./..." "unit tests should reuse the prebuilt backend image"
+require_in "$workflow" "actions/setup-go@v6" "backend unit tests should use native Go"
+require_in "$workflow" "go-version-file: services/api/go.mod" "backend unit tests should read services/api/go.mod"
+require_in "$workflow" "working-directory: services/api" "backend unit tests should run from services/api"
+require_in "$workflow" "run: go test ./..." "backend unit tests should run natively"
+require_in "$workflow" "run: go vet ./..." "backend vet should run natively"
+reject_in "$workflow" "actions/download-artifact" "backend unit tests should not download a Docker image artifact"
+reject_in "$workflow" "docker load" "backend unit tests should not load a Docker image artifact"
+reject_in "$workflow" "backend-image" "backend image artifact roundtrip should be removed"
 reject_in "$workflow" "docker compose build app" "backend CI should not rebuild the app image without GHA layer cache"
+reject_in "$workflow" "docker compose run --pull never --no-deps --rm app go test ./..." "unit tests should not use the prebuilt backend image"