docs(auth): pass auth to RecaptchaVerifier examples

[KirtiRamchandani]

Problem

The generated Auth docs include RecaptchaVerifier examples that omit the required auth constructor argument, matching #7630.

Root cause

The source JSDoc examples still used the old constructor shape, even though RecaptchaVerifier now takes authExtern as its first parameter.

Solution

Update the phone auth examples to construct RecaptchaVerifier(auth, 'recaptcha-container').

Tests run

• .\node_modules\.bin\prettier.cmd --check packages/auth/src/platform_browser/providers/phone.ts packages/auth/src/platform_browser/strategies/phone.ts
• ..\..\node_modules\.bin\eslint.cmd -c .eslintrc.js src/platform_browser/providers/phone.ts src/platform_browser/strategies/phone.ts --ignore-path ../../.gitignore from packages/auth
• git diff --check

Fixes #7630

[changeset-bot]

⚠️ No Changeset found

Latest commit: 762b513

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[gemini-code-assist]

Code Review

This pull request updates the JSDoc code examples in the phone authentication modules to correctly reflect the RecaptchaVerifier constructor, which now requires an auth instance as its first argument. I have no feedback to provide.