feat: add frontend linting workflow to GitHub Actions

Author: dos1in

.github/workflows/fe-lint-pr.yml

@@ -0,0 +1,57 @@
+name: Frontend Lint
+
+on:
+  pull_request_target:
+    paths:
+      - 'fe/**'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: read
+
+jobs:
+  lint:
+    name: Run Frontend Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout pull request code
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
+          persist-credentials: false
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v3
+        with:
+          version: 8
+          run_install: false
+
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+      - name: Setup pnpm cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('fe/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install dependencies
+        working-directory: ./fe
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Run linter
+        working-directory: ./fe
+        run: pnpm lint