v0.3.1 — view-panel tabs, tray + notifications, server-activity, media preview, dockable locks

- Tabbed view panel: File Viewer / File Tree / File Locks, header hidden at one tab, re-openable from Window, state persisted
- Right-click Workspace/Working-folder zones -> Show in File Tree (focuses the right side)
- Commit weight shown in History (p4 sizes -s //...@=CH)
- Rich code editor (highlighted underlay + gutter) and clean spec-editor surfaces (no more grey notepad)
- System tray (close-to-tray, tray menu Quit) + native OS notifications for teammate submits, even when hidden
- 'You're behind the server' banner + native notification (p4 sync -n), rechecked only when the server advances
- Audio & video preview with playback (media-src blob CSP); File Locks dockable into the view panel
- Backend: depot_ls/fs_ls, p4_change_sizes, p4_behind; tauri-plugin-notification + tray-icon

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "exbyte-depot"
-version = "0.3.0"
+version = "0.3.1"
 description = "Exbyte Depot — native Perforce client by Exbyte Studios"
 authors = ["Exbyte Studios"]
 edition = "2021"
@@ -18,8 +18,9 @@ crate-type = ["staticlib", "cdylib", "rlib"]
 tauri-build = { version = "2", features = [] }
 
 [dependencies]
-tauri = { version = "2", features = [] }
+tauri = { version = "2", features = ["tray-icon", "image-png"] }
 tauri-plugin-opener = "2"
+tauri-plugin-notification = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 tauri-plugin-dialog = "2.7.1"