feat: update claude-review workflow to use slash command (#554)

* feat: update claude-review workflow to use progress tracking and slash command

- Rename workflow from "Auto review PRs" to "PR Review with Progress Tracking"
- Update trigger types to include synchronize, ready_for_review, reopened
- Add pull-requests: write permission for tracking comments
- Replace direct_prompt with /review-pr slash command using custom command file
- Update to use claude-code-action@v1
- Switch to inline comment tool for more precise PR feedback

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* agents

* refactor: standardize agent output format instructions

Unified the output format instructions across all reviewer agents to follow a consistent structure:
- Converted numbered sections to bold headers for better readability
- Standardized "Review Structure" sections across all agents
- Maintained distinct analysis areas specific to each reviewer type

🤖 Generated with [Claude Code](https://claude.ai/code)

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

---------

Co-authored-by: Claude <noreply@anthropic.com>

.claude/commands/review-pr.md

@@ -0,0 +1,20 @@
+---
+allowed-tools: Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*)
+description: Review a pull request
+---
+
+Perform a comprehensive code review using subagents for key areas:
+
+- code-quality-reviewer
+- performance-reviewer
+- test-coverage-reviewer
+- documentation-accuracy-reviewer
+- security-code-reviewer
+
+Instruct each to only provide noteworthy feedback. Once they finish, review the feedback and post only the feedback that you also deem noteworthy.
+
+Provide feedback using inline comments for specific issues.
+Use top-level comments for general observations or praise.
+Keep feedback concise.
+
+---