Refine the F7 whole-diagram "changed" badge into a node/edge-level diff inside
flowchart and sequence diagrams against the F6 baseline. Parsed-graph diff
re-emitted with mermaid's own styling directives (classDef/class/linkStyle for
flowcharts; rect-tinted runs for sequence), removed elements ghosted in place,
layout reflow accepted, all else (other types, parse failure) falling back to
the v1 badge. New §11 + INV-29..31. Shipped via PR #28 (session 0027).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ben Stull