* implement github suggestion format instructions
add instructions for agents to use github's suggestion format (```suggestion blocks) when providing code suggestions in comments. this enables one-click apply for suggested changes.
updated:
- action/mcp/review.ts: added suggestion format guidance to create_pull_request_review tool description and comment body parameter
- action/mcp/comment.ts: added suggestion format guidance to all comment tools with clarification that suggestions only work on pr line-level review comments
- action/modes.ts: added detailed example in review mode and reminder in address reviews mode
fixes#70
* Address PR review feedback
- Remove suggestion format guidance from report_progress (not applicable)
- De-duplicate description across Comment, EditComment, ReplyToReviewComment
- Drop outer fence in suggestion format example
- Clarify that suggestions only work for self-contained changes
- Remove useless example comment from review tool description
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Co-authored-by: pullfrog <team@pullfrog.com>