ci: refresh pnpm lockfile before merge

.github/workflows/refresh-lockfile.yml

@@ -1,81 +0,0 @@
-name: Refresh Lockfile
-
-on:
-  push:
-    branches:
-      - master
-  workflow_dispatch:
-
-concurrency:
-  group: refresh-lockfile-master
-  cancel-in-progress: false
-
-jobs:
-  refresh:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    permissions:
-      contents: write
-      pull-requests: write
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 9.15.4
-          run_install: false
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          cache: pnpm
-
-      - name: Refresh pnpm lockfile
-        run: pnpm install --lockfile-only --ignore-scripts --no-frozen-lockfile
-
-      - name: Fail on unexpected file changes
-        run: |
-          changed="$(git status --porcelain)"
-          if [ -z "$changed" ]; then
-            echo "Lockfile is already up to date."
-            exit 0
-          fi
-          if printf '%s\n' "$changed" | grep -Fvq ' pnpm-lock.yaml'; then
-            echo "Unexpected files changed during lockfile refresh:"
-            echo "$changed"
-            exit 1
-          fi
-
-      - name: Create or update pull request
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          if git diff --quiet -- pnpm-lock.yaml; then
-            echo "Lockfile unchanged, nothing to do."
-            exit 0
-          fi
-
-          BRANCH="chore/refresh-lockfile"
-          git config user.name "lockfile-bot"
-          git config user.email "lockfile-bot@users.noreply.github.com"
-
-          git checkout -B "$BRANCH"
-          git add pnpm-lock.yaml
-          git commit -m "chore(lockfile): refresh pnpm-lock.yaml"
-          git push --force origin "$BRANCH"
-
-          # Create PR if one doesn't already exist
-          existing=$(gh pr list --head "$BRANCH" --json number --jq '.[0].number')
-          if [ -z "$existing" ]; then
-            gh pr create \
-              --head "$BRANCH" \
-              --title "chore(lockfile): refresh pnpm-lock.yaml" \
-              --body "Auto-generated lockfile refresh after dependencies changed on master. This PR only updates pnpm-lock.yaml."
-            echo "Created new PR."
-          else
-            echo "PR #$existing already exists, branch updated via force push."
-          fi