homeplanr v0.10.0

M9 (0.10.0): release prep — version 0.10.0, CHANGELOG, RUNBOOK

- Version 0.10.0 in package.json / tauri.conf.json / Cargo.toml(+lock).
- CHANGELOG: door styles (sliding/double/balcony/passage/garage), window
  styles (full-height/panorama/arched), doors ajar in 3D, style cards in
  the mode-aware panel, flush placement, wall-to-wall opening drag, the
  styled ghost, and the inherited lint:colors fix.
- RUNBOOK: State section for 0.10.0; new invariants (openingStyleSpec as
  the only lookup, absent-style-is-standard, reveal-width meaning, the
  opening ink twins, visual-only 3D leaves, flush-snap margin law); Top
  camera 180° roll noted in quirks; unit-test count 879.

Gates at this commit: unit/typecheck/lint/lint:colors/build, full
chromium e2e + walk isolated, visual baselines, dark-mode pass, native
smoke on the release binary, AppImage bundled. Tag + publish follow the
user checklist.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>