v0.15.7: Fix backup page storage display & rename system drive label

- Add StorageBars to backupsHandler so all registered storage paths appear
- Update backups.html to use StorageBars loop (replacing single HDDConfigured block)
- Rename "SSD (/)" → "Rendszer (/)" on backup, monitoring, and dashboard pages

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

CHANGELOG.md

@@ -1,5 +1,14 @@
 ## Changelog
 
+### What was just completed (2026-02-19 session 57)
+- **v0.15.7 — Fix backup page storage display & rename system drive label:**
+
+  Backup page ("Biztonsági mentés") now shows all registered storage paths instead of only a single "Külső HDD". Added `data["StorageBars"] = s.buildStorageBars()` to `backupsHandler` (was missing unlike dashboard/monitoring handlers). Updated `backups.html` storage bars section to use `StorageBars` loop (same pattern as monitoring page), replacing the old `{{if .HDDConfigured}}` single-HDD block.
+
+  Renamed system root partition label from "SSD (/)" to "Rendszer (/)" on all three pages (backup, monitoring, dashboard), as the root filesystem is not necessarily on an SSD.
+
+  **Files modified (4):** `internal/web/handlers.go`, `internal/web/templates/backups.html`, `internal/web/templates/monitoring.html`, `internal/web/templates/dashboard.html`
+
 ### What was just completed (2026-02-19 session 56)
 - **v0.15.6 (controller) + hub v0.1.7 — Bug hunt fixes (BUGHUNT.md):**