ci: replace Code Rabbit with Claude auto-review workflow

[jrenaldi79]

Summary

• Split single claude job into two: auto-review (automatic on PR events) and claude-assist (@claude mentions)
• Added pull_request trigger for automatic reviews on open/push/ready_for_review
• Draft PRs are skipped in auto-review
• Bumped contents permission to write so Claude can push suggested fixes

Plugin research findings

Analyzed all plugins from both Anthropic marketplaces before finalizing:

• Kept pr-review-toolkit: 6-agent review suite (code-reviewer, code-simplifier, comment-analyzer, pr-test-analyzer, silent-failure-hunter, type-design-analyzer)
• Dropped code-review: Overlaps with pr-review-toolkit (both have a code-reviewer agent)
• Dropped security-guidance: PreToolUse hook that only fires when Claude edits files locally. In a GitHub Actions context, Claude reviews diffs, not edits files, so the hook never triggers.
• Dropped semgrep: Does not exist in either marketplace repo
• Dropped second marketplace (claude-plugins-official): Not needed since all kept plugins are in claude-code-plugins

Test plan

• Verify workflow syntax is valid (YAML parses correctly)
• Open a test PR to confirm auto-review job triggers
• Comment @claude on an issue to confirm claude-assist job triggers
• Verify draft PRs do not trigger auto-review

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Enhanced automated pull request review workflow to trigger on opened, synchronized, and ready-for-review events.
  • Optimized workflow concurrency handling to prioritize pull request processing.
  • Updated repository permissions for improved review automation.

[coderabbitai]

Note

Currently processing new changes in this PR. This may take a few minutes, please wait...

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 00ceda07-9507-4f99-9366-988c5811b599

📥 Commits

Reviewing files that changed from the base of the PR and between 04560d4 and 93db605.

📒 Files selected for processing (1)

• .github/workflows/claude-review.yml

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< When in doubt, review it out. >
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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch enhance-review-workflow

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