[papi-ux]

Summary

• keep Headless Dongle visible in Play Setup while preventing per-game selection
• explain the physical-display impact in player-facing language
• open the existing Polaris Audio/Video settings surface when the host-only card is pressed
• replace backend-first mode reasons with concise player impact copy

Authority boundary

Nova does not mutate the host topology. Headless Dongle remains a host-wide Polaris setting, including for older hosts that omit session_overridable.

Stack

Depends on #262 and currently targets its branch. Retarget/rebase onto master after #262 lands.

Exact verification

Exact head: 6ced988

• Build Nova APK run 33423704534 passed lint, full JVM tests, helper/onboarding tests, and ARM64 release APK assembly
• Public Hygiene run 33423704369 passed
• the workflow intentionally skipped emulator smoke
• focused unit, source-guard, and Compose interaction coverage is included
• git diff --check and strings XML validation pass

This PR remains draft until #262 lands and the branch is rebased onto protected master. No merge, release, publication, installation, or device activation is implied.

[papi-ux]

Staged in the Nova 1.4.0 integration PR #267 at exact commits 89538fb and 6ced988. This PR will remain open until the integration PR passes its final gates and merges.

[papi-ux]

Shipped in Nova v1.4.0 through the consolidated release integration. The exact branch tip is reachable from protected , so this draft is now superseded. Closing it and retiring the branch while keeping the commit and PR history intact.

[papi-ux]

Correction for the closeout record: shipped branch tip 6ced988 is reachable from protected master. The draft was closed as superseded; its commit and PR history remain intact.