fix(mobile): keep Android chat text from showing through the composer

[PollyGlot]

Summary

On Android, thread feed text stays fully legible as it scrolls behind the composer, because the composer's backdrop gradient never renders there: Reanimated's Animated.View silently drops experimental_backgroundImage on Android, leaving the strip 100% transparent. iOS is unaffected (the gradient renders natively and the liquid-glass pill blurs whatever remains).

• Move the backdrop gradient from the animated container onto a plain pointerEvents="none" child View (StyleSheet.absoluteFill), where React Native renders it on both platforms. Same visual design, no new dependency.
• Ship patches/@react-native__gradle-plugin@0.85.3.patch bumping the foojay resolver to 1.0.0: without it expo run:android fails on Gradle 9 (JvmVendorSpec.IBM_SEMERU was removed), so Android builds are currently broken from a clean checkout.

The other experimental_backgroundImage usages (NewTaskDraftScreen, ComposerToolbarTrigger) already sit on plain Views and are unaffected.

Before / After

Dark mode (left: before, feed text fully legible through the composer; right: after, faded like iOS):

Light mode:

Test plan

• Reproduced on a Pixel emulator (API 35, dev client built from this branch): before the fix, list text renders fully opaque behind the composer pill and toolbar.
• After the fix, text scrolling behind the composer fades out in both light and dark mode, collapsed and expanded (keyboard open) states.
• At-rest layout unchanged: content still parks above the composer (bottom inset path untouched).
• tsc --noEmit, vp lint, vp fmt clean.

🤖 Generated with Claude Code

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Note

Low Risk
Scoped mobile UI layering fix and a build-tooling patch; no auth, data, or server behavior changes.

Overview
Fixes Android thread UI where feed text stayed fully readable behind the composer because Reanimated’s Animated.View ignored experimental_backgroundImage.

The composer backdrop gradient is moved onto a non-interactive child View with StyleSheet.absoluteFill in ThreadComposer, keeping the same light/dark gradients while rendering on Android. Layout animation and padding on the outer Animated.View are unchanged.

Also adds a pnpm patch for @react-native/gradle-plugin@0.85.3 that bumps the foojay toolchain resolver plugin to 1.0.0, unblocking expo run:android on Gradle 9 where the older resolver references removed APIs.

^{Reviewed by Cursor Bugbot for commit 930155c. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Fix Android chat text showing through the composer backdrop gradient

On Android, Animated.View drops the experimental_backgroundImage gradient property, leaving the composer backdrop transparent and allowing chat text to show through.

• Moves the gradient from the outer Animated.View to a separate plain View with StyleSheet.absoluteFill in ThreadComposer.tsx, which renders the gradient correctly on Android.
• Also patches @react-native/gradle-plugin@0.85.3 to update the foojay-resolver-convention Gradle plugin from 0.5.0 to 1.0.0 to fix an Android build issue.

^{Macroscope summarized 930155c.}

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[macroscopeapp]

Approvability

Verdict: Approved eaf87c5

This is a straightforward bug fix that moves an existing gradient style from an Animated.View (where it was silently dropped on Android) to a plain View. No behavior change beyond fixing the visual bug. The accompanying gradle patch is a minor toolchain version bump.

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