MÖBIUS 0.3.19 - interaction fixes

MÖBIUS 0.3.19 — interaction fixes and living self-test

This Windows preview closes the remaining interaction gaps found against the drag-demo fixture and keeps a living UI contract next to the source.

Highlights

• Selecting a project keeps its checkouts expanded after later tree renders.
• Dialog headers use Close dialog; footers keep Cancel, so Cancel is unique.
• Inspector tabs have exact accessible names (Handoff graph no longer includes the edge count).
• Leaving a dirty canvas waits for save, so reopening restores the objects.
• Mounted Library live-sync from 0.3.18 remains: native recursive watching, atomic snapshots, 180 ms debounce.
• OMP is a first-class harness alongside Codex, Claude Code, Pi and Grok.
• Search remains local SQLite FTS/BM25. Semantic or vector search is not in this release.

Self-test

JSON at docs/acceptance/self-test-checklist.json is the source of truth (58 rows). Regenerate Markdown with pnpm --dir apps/desktop sync:checklist and verify with pnpm --dir apps/desktop check:checklist. Isolated smoke already includes tests/self-test-checklist.spec.ts.

Packages

File	SHA-256
MOBIUS-0.3.19-windows-x64-setup.exe	09EDDD0BCA31CC41A05DDD665B39276AB502DD4262096111BA0D076329F99FB8
MOBIUS-0.3.19-windows-x64-portable.zip	C0353C5C71969BB8350F97B1DEE02D25010AB76BDD6EF2A464688B6AD415CF76

Unsigned Windows development builds. They may trigger SmartScreen. MÖBIUS does not patch or replace Codex, Claude Code, Pi, Grok or OMP.

Distinct from Microsoft Mobius, ControlTheory Möbius and Circular Labs Mobius.