## Summary
Implements forge cleanup tools and documentation as requested in issue #1128.
Builds on the cleanup work done in issue #1127 and documented in #1128.
## Changes
### 1. Documentation
- **docs/forge-cleanup-analysis.md**: Detailed analysis of duplicate PRs and cleanup recommendations
- **docs/forge-cleanup-report.md**: Comprehensive cleanup report with metrics and next steps
- **scripts/README.md**: Documentation for the cleanup script
### 2. Tools
- **scripts/cleanup-duplicate-prs.sh**: Automated script for detecting and closing duplicate PRs
- **.github/workflows/pr-duplicate-check.yml**: GitHub Action for automated duplicate detection
## Features
### cleanup-duplicate-prs.sh
- **Issue-based grouping**: Groups PRs by issue number extracted from titles
- **Date-based selection**: Keeps the newest PR, closes older duplicates
- **Dry-run mode**: Shows what would be done without making changes
- **Stale PR detection**: Identifies PRs older than 30 days with no activity
- **Explanatory comments**: Adds comments when closing PRs to explain why
### GitHub Action Workflow
- **Weekly schedule**: Runs every Monday at 9 AM UTC
- **Manual trigger**: Can be run on-demand via workflow_dispatch
- **Automatic issue creation**: Creates issues when duplicates are found
- **Dry-run by default**: Safe to run without making changes
## Testing
- Script syntax validated
- Dry-run mode tested successfully
- No duplicate PRs currently found (cleanup already done)
## Acceptance Criteria
✅ Tools for detecting duplicate PRs
✅ Documentation of cleanup process
✅ Automated workflow for ongoing maintenance
✅ Safe dry-run mode for testing
✅ Explanatory comments when closing PRs
## Related Issues
- #1128: [RESOLVED] Forge Cleanup — PRs Closed, Milestones Deduplicated, Policy Issues Filed
- #1127: Evening triage pass (predecessor to #1128)
Issue: #1128
