ci: add gofmt + go vet lint gate to Run Tests

.github/workflows/run-tests.yml

@@ -8,6 +8,27 @@ on:
     branches: [main, develop]
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.22'
+      - name: gofmt
+        working-directory: go
+        run: |
+          unformatted=$(gofmt -l .)
+          if [ -n "$unformatted" ]; then
+            echo "These files are not gofmt-formatted:"
+            echo "$unformatted"
+            echo "Run: gofmt -w ."
+            exit 1
+          fi
+      - name: go vet
+        working-directory: go
+        run: go vet ./...
+
   build:
     runs-on: ${{ matrix.os }}
     strategy:

docs/development/release.md

@@ -38,7 +38,7 @@ Prefer the release-please flow for normal releases.
 
 | Workflow | Trigger | Purpose |
 |----------|---------|---------|
-| `run-tests.yml` | PR + push | Build + test Go binary |
+| `run-tests.yml` | PR | Lint (gofmt + go vet), build, and test the Go binary |
 | `pr-title.yml` | PR opened/edited | Enforce Conventional Commits PR title |
 | `release-please.yml` | Push to `main` | Maintain the release PR; on merge, tag + release + build binaries |
 | `release.yml` | Tag push `v*`, dispatch, or called by release-please | Build multi-platform binaries + attach to the release |