v0.12.8: complete cross-drive backup + per-tier UI

- Cross-drive now copies DB dumps (_db/) and config (_config/) alongside user data
- restic cross-drive includes config dir + full DB dump dir
- UI: per-tier rows (1. mentés / 2. mentés) instead of per-layer (DB/Konfig/Data)
- UI: BackupContents label shows what each tier protects (DB + Konfig + Adatok)
- UI: rsync backups show browsable indicator (📁)
- Cleanup: removed unused filterSnapshotsByPaths + pathCovers from router.go

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,28 @@
 ## Changelog
 
+### What was just completed (2026-02-18 session 45)
+- **v0.12.8 — Complete Cross-Drive Backup + Per-Tier UI:**
+
+  **Fix 1: Cross-drive backup now includes DB dumps + app config (`crossdrive.go`, `main.go`)**
+  - `CrossDriveRunner` gets `dbDumpDir` field + `SetDBDumpDir(dir string)` setter
+  - `copyStackDBDumps()` helper copies `<stackName>_*.sql` files to `_db/` subfolder in rsync dest
+  - `runRsyncBackup()`: after HDD mount rsync loop, copies DB dumps to `_db/` and rsyncs config dir to `_config/` — both non-fatal on error
+  - `runResticBackup()`: appends config dir and full DB dump dir to restic paths (restic deduplicates)
+  - rsync destination layout: `backups/rsync/<app>/_db/` (dumps) + `_config/` (compose+yaml) + user data
+  - `main.go`: `crossDriveRunner.SetDBDumpDir(cfg.Paths.DBDumpDir)` wired after runner init
+
+  **Fix 2: UI restructured from per-layer to per-tier (`handlers.go`, `backups.html`, `style.css`)**
+  - `AppBackupRow` struct rebuilt: dropped old `DBLastRun/Status`, `VolumeLastRun/Status`, `HasUserData`, `UserDataConfigured/Method/Dest/Schedule/LastRun/LastStatus/LastError/StatusBadge` fields
+  - New fields: `BackupContents` (e.g., "DB + Konfig + Adatok"), `Tier1LastRun/LastStatus/DBStatus`, `Tier2Configured/Method/MethodLabel/Dest/Schedule/LastRun/LastStatus/LastError/StatusBadge/SizeHuman/Browsable`
+  - `buildAppBackupRows()` rewritten: destination health now via `s.crossDriveRunner.ValidateDestination()` instead of `system.CheckBackupDestination()`
+  - `backups.html`: two tier rows (1. mentés / 2. mentés) replace the old three layer rows (DB / Konfig / Userdata)
+  - `style.css`: added `.tier-label`, `.tier-location`, `.tier-contents`, `.tier-size`, `.tier-browsable` classes
+
+  **Fix 3: Cleanup (`router.go`)**
+  - `filterSnapshotsByPaths()` and `pathCovers()` deleted (were unused since v0.12.7a)
+
+  **Files modified (6):** `internal/backup/crossdrive.go`, `cmd/controller/main.go`, `internal/web/handlers.go`, `internal/web/templates/backups.html`, `internal/web/templates/style.css`, `internal/api/router.go`
+
 ### What was just completed (2026-02-18 session 44)
 - **v0.12.7a — Post-deploy fixes:**