[ymote]

Pin Makepad to e9b9f0a6, which brings official shader/compiler and program-cache improvements into the fork used by Rinx. The update also fixes list-height growth, smooth-scroll targets and dropped WidgetTree entries, while preserving Rinx's cache32 message retention and mobile rendering fixes. Align internal notifications with upstream so GPU/framework work does not broadcast application signals.

Framework integration: OctoSense-org/makepad#111.
Contribution back to official Makepad: makepad/makepad#1295.

The performance harness now rejects a sign-in screen when asked to measure chat typing; chat mode requires an actual composer and documents the offline production-widget fixture.

Validation:

• Release Rinx build; 355 unit tests pass, two ignored.
• Native Metal: nine selection/cache checks and 15 preview/theme/avatar checks pass.
• Native login/home checks against the loopback Matrix fixture and offline production chat-composer typing pass, including English/Chinese text preservation.
• Five-second idle samples: startup and unfocused chat submit zero frames; fixture-driven home/account updates submit six/five. Focused caret animation is measured separately.
• Framework compile checks complete for macOS, Android, Windows, wasm and OpenHarmony; existing cross-target warnings remain.
• Fork framework tests: 767 pass, with the same three baseline widget failures. Official upstream-port tests: 1,712 pass, three ignored.
• Android arm64 release APK builds successfully, including the changed Java/native bridge; package/version and embedded source provenance verified. Existing Rust and Java warnings remain. No phone runtime claim for this revision: Xiaomi is not connected and OnePlus was not used.