fix: use PR workflow for homebrew tap updates

.github/workflows/release.yml

@@ -313,14 +313,33 @@ jobs:
 
       - name: Push to Homebrew tap
         env:
-          GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
+          GH_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
         run: |
-          git clone https://x-access-token:${GITHUB_TOKEN}@github.com/harmony-labs/homebrew-tap.git tap
+          VERSION="${{ steps.version.outputs.version }}"
+          BRANCH="update-meta-cli-${VERSION}"
+
+          gh repo clone harmony-labs/homebrew-tap tap
           mkdir -p tap/Formula
           cp meta-cli.rb tap/Formula/
           cd tap
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
           git add Formula/meta-cli.rb
-          git commit -m "Update meta-cli to v${{ steps.version.outputs.version }}"
-          git push
+          if ! git diff --cached --quiet; then
+            git checkout -b "$BRANCH"
+            git commit -m "Update meta-cli to v${VERSION}"
+            # Force push in case branch exists from a previous failed run
+            git push -f -u origin "$BRANCH"
+            # Create PR only if one doesn't already exist
+            if ! gh pr view "$BRANCH" --repo harmony-labs/homebrew-tap &>/dev/null; then
+              gh pr create \
+                --title "Update meta-cli to v${VERSION}" \
+                --body "Automated formula update from meta release v${VERSION}." \
+                --repo harmony-labs/homebrew-tap
+            fi
+            gh pr merge "$BRANCH" \
+              --auto --squash \
+              --repo harmony-labs/homebrew-tap || echo "Auto-merge setup failed (may require approvals)"
+          else
+            echo "Formula unchanged, skipping commit"
+          fi