The recording banner gave no guidance, so it wasn't clear what to do after
clicking Run Diagnostic.
- Start dialog now spells out the flow: play the game, reproduce the crash, then
Finish & analyze (data survives a hard freeze + reboot), with "Launch game &
start" (steam.launch_game via steam:// appid URL) or "Start without launching".
- Recording banner now states the next step, not just a sample count.
- steam.launch_game(appid): best-effort Steam launch (steam / xdg-open).
- Fix: escape "&" in button labels (Qt mnemonic) so "Finish & analyze" shows
correctly instead of "Finish _analyze".
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>