ci(release): allow re-triggering with an already-bumped version

Skip the bump commit when package.json already matches the requested
version so a previously-failed release can be retried without manual
state surgery.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: SDSLeon

.github/workflows/release.yml

@@ -62,7 +62,11 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git add package.json
-          git commit -m "release: v${{ inputs.version }}"
+          if git diff --cached --quiet; then
+            echo "package.json already at v${{ inputs.version }}; skipping bump commit."
+          else
+            git commit -m "release: v${{ inputs.version }}"
+          fi
           git tag "v${{ inputs.version }}"
 
       - name: Push commit and tag