Release notes generator

Generate release notes in 3 formats from git commits for production releases.

Process

1. Analyze Git History: Scan commits since last release tag
2. Fetch PR Details: Get titles, descriptions via gh api
3. Categorize Changes: Group by type (feat, fix, perf, etc.)
4. Check Migrations: Detect database migration files
5. Generate 3 Outputs: CHANGELOG, PR body, communication message
6. Transform Language: Convert tech jargon to product language

Output formats

1. CHANGELOG.md Section

## [X.Y.Z] - YYYY-MM-DD