ci: add workflow_dispatch to claude code review

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: DeveshParagiri

.github/workflows/claude-code-review.yml

@@ -1,6 +1,7 @@
 name: Claude Code Review
 
 on:
+  workflow_dispatch:
   pull_request:
     types: [opened, synchronize, ready_for_review, reopened]
     # Optional: Only run on specific file changes