BackupJob: fix finish() — failedCount > 0 now correctly sets .failed
instead of .completed in both branches.
BackupEngine: replace filename-only fileExists check with a 3-layer
dedup strategy. For each asset: (1) check ManifestIndex by localIdentifier
O(1); (2) filename fallback for bootstrap manifests; (3) NAS fileExists
for files not yet in manifest. Never overwrite an existing NAS file.
Manifest index is built once after connect and held in a local let for
the loop — Data+BackupManifest are released immediately after.
BackupView — ring color:
active (running/preparing/paused) → orange always
failed → destructive
needBackup == 0 && phoneTotal > 0 → green
default → neutral gray
Ring is no longer permanently green after .completed.
BackupView — CTA button:
Default color is always black (AppTheme.ink).
On .completed: briefly flashes green for 2.5 s then smoothly
reverts to black. ctaFlashGreen state drives the color.
BackupView — Already Safe invariant:
alreadySafeDisplayCount = min(base + uploadedFiles, phoneTotal)
during active backup; min(base, phoneTotal) otherwise.
Adding skippedFiles was removed — they are already counted in
snapshot.alreadySafe from the last reconcile.
notBackedUpDisplayCount is derived from alreadySafeDisplayCount to
keep the invariant alreadySafe + needBackup == phoneTotal.
Co-Authored-By: Kutesir <kutesir@provoc.ug>
Co-Authored-By: Sentry <sentry@provoc.ug>