Fix flaky ScrollView Maestro navigation with deep links

[cortinico]

Summary:

The Android Maestro run for 5954b12400d failed in scrollview-threshold-maintainvisible: scrollUntilVisible could not find the RNTester example in the Components list, before the flow reached any ScrollView assertions. See the failed job. The same flow passed on the next main commit, suggesting intermittent list-navigation failure.

Open the ScrollView maintain-visible-content-position module with RNTester deep links in both the threshold and min-index Maestro flows, and wait for the example control before proceeding. This bypasses scrolling through the RNTester catalog; the ScrollView checks themselves are unchanged.

Changelog:

[INTERNAL] - Use deep links to avoid flaky RNTester list navigation in ScrollView Maestro tests.

Test Plan:

• yarn prettier --check packages/rn-tester/.maestro/scrollview-threshold-maintainvisible.yml packages/rn-tester/.maestro/scrollview-minindex-maintainvisible.yml — passed.
• git diff --check — passed.
• node -e 'const fs=require("fs"),yaml=require("yaml"); for(const f of process.argv.slice(1)){const docs=yaml.parseAllDocuments(fs.readFileSync(f,"utf8")); if(docs.length!==2||docs.some(d=>d.errors.length))throw Error(f+": invalid Maestro YAML"); const commands=docs[1].toJS(); if(!commands.some(c=>c.openLink==="rntester://example/ScrollViewMaintainVisibleContentPositionExample"))throw Error(f+": missing deep link"); console.log(f+": YAML valid, deep link present")}' packages/rn-tester/.maestro/scrollview-threshold-maintainvisible.yml packages/rn-tester/.maestro/scrollview-minindex-maintainvisible.yml — passed.
• Maestro end-to-end flows not run locally: no Android device was attached, and RNTester was not installed on the available iOS simulator. CI should exercise both flows.
• No screenshots needed: test automation only; no user-interface changes.

[meta-codesync]

@cortinico has imported this pull request. If you are a Meta employee, you can view this in D122778911.

[meta-codesync]

@cortinico merged this pull request in ba57eab.