Add wallenc:// URI patterns, manifest VIEW intent-filters, and NavDeepLink
with handleDeepLink from MainActivity. Move FGS notification PendingIntent
constants to WallencExternalLaunch. Theme splash/window background via
splash_screen_background in values and values-night.
Co-authored-by: Cursor <cursoragent@cursor.com>
Add Yandex Disk API (Retrofit + OkHttp), per-vault repository with DB-backed
OAuth token, YandexStorage/YandexStorageAccessor under app:/<uuid>, and a
real YandexVault bootstrap (disk quota, list storages, create/remove).
Expose vault and storage availability: vault is reachable after diskInfo;
each storage combines vault reachability with local init readiness. Map
401 to YandexDiskAuthException and mark the vault unavailable.
Add YandexAccountDao.getByVaultUuid for fresh tokens on each request.
Co-authored-by: Cursor <cursoragent@cursor.com>
Consolidate duplicated meta-info and clear logic into BaseStorage. Promote
system file accessors and DataPage-based flows into IStorageAccessor. Use Long
for vault disk space to support cloud byte counts. Combine local and remote
storages in VaultsManager so UnlockManager sees all backends.
Yandex Disk REST integration (phase B) is deferred to a follow-up change.
Co-authored-by: Cursor <cursoragent@cursor.com>
