🚀 Multi-Repository Release Notes Backfill

This PR introduces an intelligent script to automatically backfill missing release notes from multiple GitHub repositories, solving the complex versioning synchronization problem in the Knuth multi-module architecture.

🎯 Problem Solved

• Missing release notes: Versions 0.47.0 → 0.58.0 were not documented in release-notes.md
• Multi-repo complexity: Changes scattered across node-exe, node, and c-api repositories
• Version mismatch: C-API uses different versioning scheme (0.58.0 → 0.67.0)
• Empty releases: Some releases have no notes due to changes being in sub-modules

🧠 Intelligent Solution

The backfill_release_notes.sh script implements:

📡 Multi-Repository Aggregation

• Fetches releases from k-nuth/node-exe, k-nuth/node, k-nuth/c-api
• Uses node-exe as primary version reference (0.47.0 → 0.58.0)
• Handles different versioning schemes automatically

📅 Date-Based Synchronization

• Groups releases by date proximity (±1 day tolerance)
• Finds contemporary releases across repositories
• Resolves the version mismatch problem intelligently

🔄 Smart Content Merging

• Combines release notes from all repositories per version
• Organizes by: Node Executable, C++ Library, C API
• Handles empty releases by pulling content from related repos
• Cleans up auto-generated GitHub content

🛡️ Safe Operation

• Creates automatic backup before any changes
• Interactive review and confirmation
• Preserves existing format and structure
• Provides detailed logging and progress feedback

📁 Files Added

• scripts/backfill_release_notes.sh: Complete backfill automation tool

🚀 Usage

# Run the backfill process
./scripts/backfill_release_notes.sh

# The script will:
# 1. Backup existing release-notes.md
# 2. Fetch all releases from the 3 main repos
# 3. Group by date and merge content
# 4. Update the local file
# 5. Show preview and ask for confirmation
# 6. Commit changes automatically

✅ Expected Outcome

After running this script, doc/release-notes/release-notes.md will contain:

• All missing versions from 0.47.0 to 0.58.0
• Properly merged content from all repositories
• Consistent formatting with existing entries
• Complete historical record of all releases

🔮 Future Benefits

This tool can be used anytime to:

• Backfill missing release notes
• Synchronize multi-repo documentation
• Maintain historical accuracy
• Handle complex versioning scenarios

The script is designed to be reusable and handles edge cases gracefully, making it a valuable tool for maintaining comprehensive release documentation in multi-module projects.