ci(github): improve workflow structure and add build job

.github/workflows/ci.yml

@@ -13,8 +13,27 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  build:
+    name: 🔨 Build (${{ matrix.go-version }})
+    strategy:
+      fail-fast: false
+      matrix:
+        go-version: [1.24.x, 1.25.x]
+    runs-on: ubuntu-latest
+    steps:
+      - name: 📥 Checkout
+        uses: actions/checkout@v6
+
+      - name: ⬇️ Setup Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: 🔨 Build
+        run: go build -v ./cmd/task
+
   test:
-    name: Test (${{ matrix.go-version }}, ${{ matrix.platform }})
+    name: 🧪 Test (${{ matrix.go-version }}, ${{ matrix.platform }})
     strategy:
       fail-fast: false
       matrix:
@@ -22,67 +41,69 @@ jobs:
         platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/setup-go@v6
+      - name: 📥 Checkout
+        uses: actions/checkout@v6
+
+      - name: ⬇️ Setup Go
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go-version }}
 
-      - uses: actions/checkout@v6
+      - name: ⬇️ Setup Task
+        uses: go-task/setup-task@v1
 
-      - name: Download Go modules
-        run: go mod download
-        env:
-          GOPROXY: https://proxy.golang.org
-
-      - name: Build
-        run: go build -o ./bin/task -v ./cmd/task
-
-      - name: Test
-        run: ./bin/task test --output=group --output-group-begin='::group::{{.TASK}}' --output-group-end='::endgroup::'
+      - name: 🧪 Test
+        run: task test
 
   lint:
-    name: Lint (${{ matrix.go-version }})
+    name: 🔍 Lint (${{ matrix.go-version }})
     strategy:
       fail-fast: false
       matrix:
         go-version: [1.24.x, 1.25.x]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-go@v6
+      - name: 📥 Checkout
+        uses: actions/checkout@v6
+
+      - name: ⬇️ Setup Go
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go-version }}
 
-      - uses: actions/checkout@v6
-
-      - name: golangci-lint
+      - name: 🔍 Lint
         uses: golangci/golangci-lint-action@v9
         with:
           version: v2.7.1
 
   lint-jsonschema:
-    name: Lint JSON Schema
+    name: 📋 Lint JSON Schema
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v6
+      - name: 📥 Checkout
+        uses: actions/checkout@v6
+
+      - name: ⬇️ Setup Python
+        uses: actions/setup-python@v6
         with:
           python-version: 3.14
 
-      - uses: actions/checkout@v6
-
-      - name: install check-jsonschema
+      - name: ⬇️ Install check-jsonschema
         run: python -m pip install 'check-jsonschema==0.27.3'
 
-      - name: check-jsonschema (metaschema)
+      - name: 📋 Validate JSON Schema
         run: check-jsonschema --check-metaschema website/src/public/schema.json
 
   ci-status:
-    name: CI
+    name: ✅ CI
     runs-on: ubuntu-latest
-    needs: [test, lint, lint-jsonschema]
+    needs: [build, test, lint, lint-jsonschema]
     if: always()
     steps:
-      - name: Check CI status
+      - name: ✅ Check CI status
         run: |
-          if [[ "${{ needs.test.result }}" != "success" ]] || \
+          if [[ "${{ needs.build.result }}" != "success" ]] || \
+             [[ "${{ needs.test.result }}" != "success" ]] || \
              [[ "${{ needs.lint.result }}" != "success" ]] || \
              [[ "${{ needs.lint-jsonschema.result }}" != "success" ]]; then
             echo "CI failed"