[eszlamczyk]

Summary

Adds a regression test for the web crash fix (#28) — the first coverage of remendWorklet. #28 shipped without a test since the behavior is decided at module load; this locks it in.

What it covers

src/__tests__/remendWorklet.test.ts loads the module fresh per platform (via jest.isolateModules, since the web/native branch is chosen at import time) and asserts:

• web — does not call createWorkletRuntime at module load (the Web: importing StreamdownText crashes at module load (createWorkletRuntime called at module scope) #27 crash: it's a throwing stub on react-native-web)
• web — runs remend on the JS thread and delivers via scheduleOnRN, not scheduleOnRuntime
• web — merges caller remendConfig over the defaults
• native — creates the worklet runtime at load and schedules via scheduleOnRuntime (not the JS-thread path)

Notes

• Platform and remend are mocked via stable refs the jest.mock factories close over, because jest.isolateModules re-requires those modules on every load.
• remend is a virtual mock — its package.json exposes only an "import" condition, which jest's CommonJS resolver can't load, and the test only needs the stub.

Verification

• yarn test — 3 suites / 6 passed + 1 todo
• Sanity: reverting the Platform.OS === 'web' guard makes the 3 web tests fail (confirms it catches a fix: don't crash on web where worklet runtimes are unavailable #28 regression)
• yarn typecheck clean, yarn lint clean