* feat(dev): add desktop tools-dev control plane
* refactor(sidecar): split Open Design contracts
Move Open Design-specific sidecar protocol definitions into @open-design/contracts so sidecar and platform can remain descriptor-driven primitives.
* refactor(daemon): organize package sources
Keep daemon app code, tests, and sidecar entrypoints in separate package directories so each layer can be built and verified independently.
* chore(repo): streamline maintenance entrypoints
Centralize agent guidance by directory and reduce root command chains while preserving the existing build scope.
* docs: translate agent guidance to English
* fix(sidecar): tolerate stale IPC sockets
Remove stale Unix socket files only after confirming no listener is active, so tools-dev can restart after unclean shutdowns.
* test: add e2e ui automation suite
* fix review feedback for ui e2e suite
Resolved the FileWorkspace.tsx merge-marker issue and kept the intended combination of multiple, accept="image/*", and data-testid.
Updated the e2e port handling so the test config no longer relies on a single hardcoded app port. It now resolves an available port first and passes the same port selection through the dev server and Playwright base URL. Since main has moved to the Next.js dev stack, this was also adapted from the old Vite-based flow to NEXT_PORT.
Kept test:ui serialized so cleanup completes before Playwright starts.
Updated reset-e2e-artifacts.mjs so cleanup failures are surfaced with a warning instead of being silently swallowed, except for the expected ENOENT case.
