Store Android auto-upload cursors per source

PRODUCTION_READINESS.md

@@ -35,6 +35,7 @@ Date: 2026-06-08.
 - Android auto-upload now exposes a photo/video daily mobile-data limit, stores it in Room schema version `51`, and stops queuing additional uploads on metered automatic-upload runs after the configured daily byte limit is reached while keeping skipped files eligible for the next scan period.
 - Android video backup settings now label the Wi-Fi-only control as "Never use mobile data for videos" and explain that turning it off enables metered-network limits and roaming controls.
 - Android photo/video backup settings now show a compact overall backup status: enabled state, selected phone-folder count, network/roaming/charging conditions, and last backup scan.
+- Android auto-upload now stores per-source folder sync cursors in Room schema version `52`, keeps the legacy `lastSyncTimestamp` as a migration fallback, starts newly added source folders at timestamp `0`, and preserves per-source cursors when a metered run stops at the daily mobile-data limit. `:qsferaDomain:testDebugUnitTest --tests "eu.qsfera.android.domain.automaticuploads.model.FolderBackUpConfigurationTest"`, `:qsferaApp:testOriginalDebugUnitTest --tests "eu.qsfera.android.workers.AutomaticUploadsWorkerTest"`, and `:qsferaData:compileDebugKotlin` passed on 2026-06-10.
 - Server `qsfera_full` compose files now require explicit admin, Keycloak, and S3/MinIO secrets instead of demo defaults.
 - Server `qsfera_full/env.production.example` provides a tracked production-safe starting point with TLS validation enabled and demo users disabled.
 - Server `qsfera_full/validate-production-env.sh` checks production `.env` invariants before compose validation: TLS validation enabled, demo users disabled, pinned production image, required domains, required secrets, and no public-production MinIO.
@@ -87,6 +88,5 @@ Date: 2026-06-08.
 ## Remaining P1
 
 - Extend Android backup status UX beyond the new overall settings summary with per-item status, queued/paused/permanent-failure states, and low-storage messaging.
-- Store auto-upload sync cursors per source folder rather than one timestamp for all folders.
 - Configure `QSFERA_ALERT_WEBHOOK_URL` in `/etc/qsfera/rpi-production-check.env` if off-host alert delivery is required; the installed failure service currently logs through `systemd-cat` and journal without an external endpoint.
 - Verify sharing controls against Google Drive and Yandex Disk expectations: link expiration, password, disable downloads, organization-only access, and role inheritance.