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.github/workflows/proto-linter.yml

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+name: Proto Linter
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+    paths:
+      - "proto/**"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    name: Lint Protos
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Setup buf
+        uses: bufbuild/buf-setup-action@v1
+        with:
+          github_token: ${{ github.token }}
+
+      - name: Run buf lint
+        uses: bufbuild/buf-lint-action@v1
+        with:
+          input: proto
+
+      - name: Check buf format
+        run: |
+          if [[ $(buf format -d) ]]; then
+            echo "❌ Proto files are not formatted. Run 'buf format -w' to fix."
+            exit 1
+          fi