Changelog

ResolveCloudSubdir now validates that the storage root is accessible

before returning a path. On macOS, /Volumes/{name} mount points are

checked for existence. This prevents UnauthorizedAccessException when

exporting snapshots or writing sync events at shutdown with a

disconnected NAS or network volume.

Increase ThemePageMaxWidth from 1000 to 1060 pixels so tables and

other block content have more horizontal room, reducing text

truncation in multi-column data tables.

Removed CornerRadius, BoxShadow, BorderThickness, and background

binding from the grid container border for a flat, borderless look.

Drag handles now start at opacity 0 and fade to 0.6 on pointer enter,

disappearing again on exit. Handle opacity resets after drag release.

Header cells now use ThemeTableHeaderBrush (falls back to

ThemeSurfaceElevatedBrush) for proper theme-aware coloring. Removed all

cell border lines from both read-only and editable cells. The last

column now uses Star sizing with MinWidth to fill available width

instead of leaving empty space on the right.

OAuth client IDs for native desktop apps are public by design (PKCE and

device flow don't rely on client secret confidentiality). Previously the

app required env vars to be set at runtime, causing

TypeInitializationException when they weren't present. Now the client IDs

are compiled-in constants with optional env var override for development

or custom deployments.

This fixes the build pipeline gap where Windows CI (and future Linux/Mac

CI) didn't pass OAuth env vars, producing binaries that couldn't connect

to Google, Microsoft, or GitHub. No GitHub secrets needed for these since

native-app client IDs are inherently public.