App Settings' save handled only the multi-user admin-only 403 and the tunnel's no-password 403, so a 409 for a settings.json that does not parse, a 400, a 500 or a dropped connection (`_apiPut` answers null) still toasted "Settings saved" and closed the modal, and the run mode and respawn preset writes failed with no word at all. Those failures now warn with the server's reason (else the HTTP status, else that the server could not be reached), the modal stays open, and nothing that assumes the server stored the save runs: Apply's refresh, the tunnel-starting toast and the gesture-control reload. Since the modal now invites a second Save, the plan-usage collection flip and the gesture reload are judged against the settings the failed save started from until a save lands, so the retry still sends the flip and still reloads.
A save with the tunnel switch on is read as a tunnel refusal only on a 403, so another failure no longer turns the switch off or shows the no-password message, and an accepted no-password retry now resends the whole save instead of the tunnel keys alone, which had left every other setting unsaved behind "Settings saved". Run mode and respawn presets stay saved on this device as before and now say they were not saved on the server. Stopping the tunnel from the welcome screen or the tunnel panel no longer says "Tunnel stopped" when the server refused the write, since the tunnel is then still running.
Two follow-ups to #361's sticky telemetry switch.
GET /api/settings reconciled an absent showPlanUsageLimits by persisting
true, but readJsonConfig() answers {} for ANY read failure (a parse
error, EACCES, EMFILE, a read landing inside PUT's non-atomic write), not
only ENOENT, and every page load calls this route, so one unlucky read
replaced the whole settings file with a one-key file. The route is a
plain read again and the default moved into the reader:
readPlanUsageTelemetryEnabled() treats an absent key as ON, the same way
readWorkspaceHooksEnabled() does, which is what the desktop chip already
shows for an install that never touched the setting.
saveAppSettings() sent showPlanUsageLimits on every save. The chip
defaults OFF on handhelds, so a phone saving its font size persisted
false and switched collection off for every desktop, whose chip then
went stale with no error anywhere. The key is now stripped like the
other per-device display keys and re-added only when the save FLIPS the
chip relative to what the device had (planUsageCollectionFlip), so an
explicit toggle on any device still writes it in either direction.
Tests pin both: the GET route with a mocked filesystem (absent, missing,
EACCES, garbage, explicit), the reader default, and the flip helper plus
its wiring in saveAppSettings.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
JD