Merges the landing app migration with all fixes:
- ui-effects-mouse tsconfig fix (noEmit mode)
- landing-merch i18n namespace
- AppsGallery back button navigation
- z-index fixes for nav overlays
- E2E test improvements with data-testid
Build ✓, E2E 32/32 ✓, Unit 71/74 ✓
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- .claude now symlinked from tooling/claude/dot-claude
- CLAUDE.md symlinked from tooling/claude/CLAUDE.md
- Remove deprecated @packages/@providers/theme-provider
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>