iOS: ellipsizeMode="clip" renders RTL (Arabic) text as a mangled fragment at the line start

Description

With numberOfLines={1} and ellipsizeMode="clip", a one-line RTL (Arabic) string that overflows its container renders as a jumbled fragment collapsed at the visual start (right edge) on iOS, instead of drawing the line normally and clipping the overflow at the container edge. ellipsizeMode="tail" on the same string truncates without mangling (subject to #58315). LTR text clips correctly.

Observed with multiple Arabic fonts (Scheherazade New, KFGQPC Hafs) in the same reproducer as #58315: select the "clip" mode — every overflowing row shows the mangled fragment; screenshots in the repo README.

Steps to reproduce

1. Clone https://github.com/muhasabahhub/rn-arabic-seat, npm install, npx expo start, Expo Go on a physical iPhone.
2. Select: clip + any Arabic font (Scheherazade or Hafs). Mutations all off.
3. Overflowing rows (the second of each pair) render as a jumbled cluster at the right edge instead of a clean clipped line.
4. Switch to tail: same strings truncate without mangling.

React Native Version

0.86.3

Affected Platforms

Runtime - iOS

Output of npx @react-native-community/cli info

Expo SDK 57 managed project — envinfo equivalent below; full dependency table in the repo README.

 System:
    OS: Windows 11 10.0.26200
    CPU: (22) x64 Intel(R) Core(TM) Ultra 7 155H
    Memory: 3.80 GB / 15.59 GB
  Binaries:
    Node: 24.13.1 - C:\Program Files\nodejs\node.EXE
    npm: 11.19.0 - C:\Program Files\nodejs\npm.CMD
  npmPackages:
    expo: ~57.0.18 => 57.0.19
    expo-font: ~57.0.2 => 57.0.3
    react: 19.2.3 => 19.2.3
    react-native: 0.86.3 => 0.86.3
    react-native-safe-area-context: ~5.7.0 => 5.7.0


Device: iPhone 15, iOS 23.3.1, physical device via Expo Go. New Architecture (Fabric), Hermes.

Stacktrace or Logs

No crash or error output — this is a silent rendering defect. Nothing is logged.

MANDATORY Reproducer

https://github.com/muhasabahhub/rn-arabic-seat

Screenshots and Videos

Comienza con el reproductor obligatorio en github.com/muhasabahhub/rn-arabic-seat y compara el renderizado en iOS para ellipsizeMode="clip" y "tail" usando filas árabes que desbordan. Sigue la ruta de renderizado de texto de React Native iOS desde el reproductor. Se considera terminado cuando el texto RTL de una sola línea que desborda se recorta limpiamente en el borde del contenedor sin un fragmento deformado, mientras el comportamiento LTR sigue siendo correcto.