Adds a "Connection" submenu with a "Change Launch Mode…" item that lets
users switch between Run Locally and Connect to Remote after the initial
chooser. The menu sends shell:reset-desktop-mode-request to the renderer;
the dashboard's DesktopLaunchGate listens, calls the new
shell:resetDesktopMode IPC (clears hasCompletedModeSelection, stops the
embedded runtime), strips the cached serverBaseUrl/shellMode query params,
and reloads so the gate re-prompts.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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