- **Issue:** The modal fetches edit history via raw `fetch`. Edit events not found in the room cache were constructed from raw encrypted content and never decrypted.
- **Fix:** Each newly constructed `MatrixEvent` is now passed through `mx.decryptEventIfNeeded()` before rendering when `evt.isEncrypted()` is true.
- The `sessions` Map is intentionally in-memory. The main window re-posts the session to the SW via `postMessage` on every load. Persisting access tokens in SW IndexedDB would duplicate credential storage unnecessarily and is not required for the current feature set.
- Full offline Matrix requires persisting sync state, E2EE keys, and an event send queue. The SW exists for authenticated media and notifications, which it handles correctly. Adding Workbox precaching is a multi-sprint project with limited benefit for a Matrix client.
- **Issue:** Resize corner `onMouseDown` handlers did not fire on touch devices.
- **Fix:** Added `handleResizeTouchStart` using touch events with the same geometry math extracted into a shared `applyResize` helper. `onTouchStart` is now wired to all four resize corners.
- **Issue:** When Glassmorphism is enabled, the chat background was rendered on both `document.body` and `RoomView`, running the same CSS animation twice.
- **Fix:** `RoomView` now reads the `glassmorphismSidebar` setting and skips applying `chatBgStyle` when it is active, relying entirely on the `document.body` background that `SidebarNav` already mirrors.
