[tiensonqin]

Summary

Add opt-in platform observation/input facilities for Drive's explicit native mode, without changing production defaults or translating native actions into LUI semantic events. Driver transport and the separate XCTest runner are in logseq/drive#10.

• Android: LuiBackend.inspect() provides copied retained nodes, incarnation guards and clipped measured geometry. The optional debug-only :drive instrumentation host uses OS MotionEvent/KeyEvent injection and a deliberately selected test IME InputConnection for Unicode/empty replacement. A standalone sample keeps runner, IME, permission and host classes out of Release; its explicit launcher preserves/restores IME selection and port forwarding. Existing Android CI compiles/tests/lints these modules.
• iOS: DEBUG-only debugDriveSnapshot() and LUIDriveSnapshotProbe.startIfEnabled(...) expose read-only tree/geometry/native identifiers on IPv4 loopback only when explicitly enabled. Input remains exclusively in an external XCTest UI-testing target. Frame settings are restored on teardown; no callback is replaced.
• Both guides and root migrations document lifecycle, snapshot ordering, unsupported geometry, sampled-settle limits, and the absence of semantic fallback. No MyGo SDK or pin change.

Local validation: Android full existing unit suite (71 tests), one strict v1 protocol table test, sample Debug/Release assembly, and scoped lint pass. Release manifest/dex inspection confirms no instrumentation, test IME, native host classes, INTERNET permission or debuggable flag. git diff --check passes. Hosted Android checks and Apple backend/iOS compile checks passed on the initial integration; final CI includes an upstream-main refresh. The standalone XCTest runner also passes Drive's Apple compile-only gate.

No native Android/iOS Drive device-input verification has been performed. Existing UIKit lifecycle regressions and compiler checks are not native-adapter evidence. Integrating apps must still hook up their DEBUG host and exercise input on a device/Simulator. The MyGo native adapter remains blocked by the current pinned SDK's lack of a public live-window input dispatcher.

Link to Devin session: https://app.devin.ai/sessions/9bf68438070747fb8b5c0c6718836a56
Open in Devin Desktop: https://app.devin.ai/desktop/session/9bf68438070747fb8b5c0c6718836a56?variant=devin
Requested by: @tiensonqin

[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

• Disable automatic comment, CI, and merge conflict monitoring