ci(github): use setup-task with output grouping for tests

Restore the --output group options for better GitHub Actions log
grouping, while keeping the separate build job for compilation check.

.github/workflows/ci.yml

@@ -0,0 +1,112 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    tags:
+      - v*
+    branches:
+      - main
+
+concurrency:
+  group: ci-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: 🔨 Build (${{ 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 }})
+    strategy:
+      fail-fast: false
+      matrix:
+        go-version: [1.24.x, 1.25.x]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: 📥 Checkout
+        uses: actions/checkout@v6
+
+      - name: ⬇️ Setup Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: ⬇️ Setup Task
+        uses: go-task/setup-task@v1
+
+      - name: 🧪 Test
+        run: task test --output group --output-group-begin '::group::{{.TASK}}' --output-group-end '::endgroup::'
+
+  lint:
+    name: 🔍 Lint (${{ 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: ${{ matrix.go-version }}
+
+      - name: 🔍 Lint
+        uses: golangci/golangci-lint-action@v9
+        with:
+          version: v2.7.1
+
+  lint-jsonschema:
+    name: 📋 Lint JSON Schema
+    runs-on: ubuntu-latest
+    steps:
+      - name: 📥 Checkout
+        uses: actions/checkout@v6
+
+      - name: ⬇️ Setup Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: 3.14
+
+      - name: ⬇️ Install check-jsonschema
+        run: python -m pip install 'check-jsonschema==0.27.3'
+
+      - name: 📋 Validate JSON Schema
+        run: check-jsonschema --check-metaschema website/src/public/schema.json
+
+  ci-status:
+    name: ✅ CI
+    runs-on: ubuntu-latest
+    needs: [build, test, lint, lint-jsonschema]
+    if: always()
+    steps:
+      - name: ✅ Check CI status
+        run: |
+          if [[ "${{ needs.build.result }}" != "success" ]] || \
+             [[ "${{ needs.test.result }}" != "success" ]] || \
+             [[ "${{ needs.lint.result }}" != "success" ]] || \
+             [[ "${{ needs.lint-jsonschema.result }}" != "success" ]]; then
+            echo "CI failed"
+            exit 1
+          fi
+          echo "CI passed"

.github/workflows/lint.yml

@@ -1,43 +0,0 @@
-name: Lint
-
-on:
-  pull_request:
-  push:
-    tags:
-      - v*
-    branches:
-      - main
-
-jobs:
-  lint:
-    name: Lint
-    strategy:
-      matrix:
-        go-version: [1.24.x, 1.25.x]
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/setup-go@v6
-        with:
-          go-version: ${{matrix.go-version}}
-
-      - uses: actions/checkout@v6
-
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v9
-        with:
-          version: v2.7.2
-
-  lint-jsonschema:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/setup-python@v6
-        with:
-          python-version: 3.14
-
-      - uses: actions/checkout@v6
-
-      - name: install check-jsonschema
-        run: python -m pip install 'check-jsonschema==0.27.3'
-
-      - name: check-jsonschema (metaschema)
-        run: check-jsonschema --check-metaschema website/src/public/schema.json

.github/workflows/test.yml

@@ -1,38 +0,0 @@
-name: Test
-
-on:
-  pull_request:
-  push:
-    tags:
-      - v*
-    branches:
-      - main
-
-jobs:
-  test:
-    name: Test
-    strategy:
-      matrix:
-        go-version: [1.24.x, 1.25.x]
-        platform: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{matrix.platform}}
-    steps:
-      - name: Set up Go ${{matrix.go-version}}
-        uses: actions/setup-go@v6
-        with:
-          go-version: ${{matrix.go-version}}
-        id: go
-
-      - name: Check out code into the Go module directory
-        uses: actions/checkout@v6
-
-      - 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::'