Hermes WebUI Desktop v0.2.0

Added

• Tabs on Windows and Linux (tester report: "there's no indicator that there is
  a functionality for new tabs or windows"). Every window now has a browser-style
  tab bar: ＋ or Ctrl+T opens a tab, click to switch, hover × /
  middle-click / Ctrl+W closes, Ctrl+Tab / Ctrl+Shift+Tab cycle, and tab
  titles follow the active conversation (same "— Hermes"-stripping pipeline as the
  macOS native tabs). Each tab is its own live webview — switching tabs never
  reloads the page or interrupts a streaming response, matching what macOS gets
  from one-WKWebView-per-native-tab. Built on Tauri's multi-webview support: the
  window hosts a 38px shell strip plus one content webview per tab; the strip is a
  bundled page with full IPC while tab content keeps the event-emit-only
  capability. The connection status (tunnel state with Reconnect, or the direct
  health dot) moved from the injected page footer into the strip's status area.
• A native ⋯ menu in the tab bar (Windows/Linux) — the discoverability surface
  the first build lacked: New Tab, New Window, Reload, Find in Page, Zoom,
  Preferences, Open in Browser and Quit, each listed with its keyboard shortcut, as
  a real OS context menu.
• prefs.json is seeded with the full default settings schema on first launch
  (it previously showed {} until something was saved — Swift
  seedDefaultsIfNeeded parity).

Fixed

• Windows/Linux: Ctrl+T previously opened the new window at the OS default
  position instead of cascading from the current one (superseded by real tabs, but
  the cascade also applies to Ctrl+N windows).