Add synchronize trigger for Claude auto-review

Re-reviews PRs when new commits are pushed, keeping feedback
up to date with the latest changes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jamesrweb

.github/workflows/claude.yml

@@ -8,7 +8,7 @@ on:
   issues:
     types: [opened, assigned]
   pull_request_target:
-    types: [opened, assigned, ready_for_review]
+    types: [opened, assigned, synchronize, ready_for_review]
   pull_request_review:
     types: [submitted]