v0.8.0

• Recording length is now a visible General setting shared by timed, button, tray, CLI, and shortcut capture, with 30-second, 1-minute, 2-minute, 5-minute, and 10-minute choices. Ten minutes is the default and ceiling.
• Active sessions snapshot their limit, Home shows that value while recording, preview behavior matches the backend, and existing record_seconds config plus ECHO_RECORD_SECONDS overrides remain supported.
• Ten-minute capture avoids the previous native-sample clone and full mono intermediate buffer while preserving exact conversion output on tested mono, stereo, and multichannel inputs.
• Shortcut verification always cleans up its test recording, and token-scoped stop requests cannot cancel a replacement session. Fixture capture now obeys the same limit and cancellation contract as live capture.