ci: add Go test and lint workflow

.github/workflows/ci.yml

@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ["1.26"]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Build
+        run: |
+          go build -v ./...
+          go build -v ./cmd/pb/
+
+      - name: Vet
+        run: go vet ./...
+
+      - name: Staticcheck
+        uses: dominikh/staticcheck-action@v1
+        with:
+          version: latest
+
+      - name: Test
+        run: go test -race -v ./...