Stabilize Pico duplex voice and recorder HUD

[tRNAoO]

Functional acceptance:

• Keeps G1 H.264 compressed and limits Android decoder polling to negotiated video rate.
• Stabilizes duplex audio/microphone reconnect lifecycle.
• Parses bounded RECORD_STATUS control metadata and renders REC/IDLE/SAVING plus operator time in per-eye HUD without modifying video pixels.

Verification:

• Unity 2022.3 batch compile PASS
• Remote record status parser and per-eye Canvas construct/destroy self-test PASS (REMOTE_RECORD_STATUS_SELF_TEST_OK)
• Pico stream performance self-test remains enabled in the beta build.

[tRNAoO]

beta.10 verification update (commit 18b4e76): Unity PicoStreamPerformanceSelfTest PASS; release APK build PASS; adb install -r -g PASS on PA9210MGK9180203G; device reports versionName=1.1.2-beta.10 and versionCode=11. Physical Listen-on performance validation is pending headset interaction; it will compare Unity FPS/frame_max_ms, remote texture_fps, microphone backlog/timing counters, RSS, and control disconnects before merge.

[tRNAoO]

Updated the PR with beta.11 recording HUD stabilization. The recorder badge now uses an independent head-locked world-space canvas, so SetLERE video-mode changes cannot disable RECORDING/IDLE. Added received/applied/overlay-unavailable breadcrumbs and bumped the APK to versionCode 12. Unity self-tests passed; APK SHA256 766f9d4e69b303b1a75ffb6ef82ea51958a5223fac87211cc1acade78117da5a was installed and cold-started on Pico PA9210MGK9180203G without FATAL/ANR.