AI Code Migration Assistant

Automated major-version migration: React 18→19, Python 3.9→3.12, Rails 6→7, with AST-wrapped diff PR and regression test suit.

• AST-level code transformation (no regex hacks)
• Breaking-change detection + PR diff per file
• Regression test suite auto-generated per migration
• Manual-approval gate per PR (human-in-loop)

• Migrate framework major-version in days not weeks
• AST transform = safe, not search-replace
• Regression test = confidence before merging
• PR per file = audit trail of every change