v0.0.51 — Dashboard layout-save hotfix

Released: 2026-05-05.

Dashboard layout edits made within the 800 ms debounce window of clicking Done Editing or refreshing the page were silently dropped — the trailing PATCH never fired, so cards reverted on reload.

A generic createDebouncedSaver helper with an explicit flush() contract now wraps the layout-save channel; the DashboardsPage Done Editing handler calls flush() before unmounting. Pure client-side fix — no schema, API, or behavior change otherwise.

Also: CI fix for the release re-pack step (absolute-path resolution before cd) so v0.0.51 could actually be built and signed.