fix(shared): Use globalThis instead of global in encodeB64

[jacekradko]

Summary

• Replaces global.btoa with globalThis.btoa in the encodeB64 function

globalThis is the standard way to access the global object across different JavaScript environments (browser, Node.js, workers, etc.), while global is Node.js-specific and may cause issues in other environments.

Test plan

• Existing tests pass

Summary by CodeRabbit

• Chores
  • Internal compatibility improvements to ensure consistent behavior across different JavaScript runtime environments.
  • Patch version bump for the shared package to roll out the compatibility fix.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 634a7ff

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 20 packages

Name	Type
@clerk/shared	Patch
@clerk/agent-toolkit	Patch
@clerk/astro	Patch
@clerk/backend	Patch
@clerk/chrome-extension	Patch
@clerk/clerk-js	Patch
@clerk/expo-passkeys	Patch
@clerk/expo	Patch
@clerk/express	Patch
@clerk/fastify	Patch
@clerk/localizations	Patch
@clerk/msw	Patch
@clerk/nextjs	Patch
@clerk/nuxt	Patch
@clerk/react-router	Patch
@clerk/react	Patch
@clerk/tanstack-react-start	Patch
@clerk/testing	Patch
@clerk/ui	Patch
@clerk/vue	Patch

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Project	Deployment	Review	Updated (UTC)
clerk-js-sandbox	Ready	Preview, Comment	Jan 22, 2026 6:29pm

[coderabbitai]

📝 Walkthrough

Walkthrough

The change updates the encodeB64 function in the encoders module to use globalThis.btoa instead of global.btoa for accessing the base64 encoder. The functional behavior of the encoding remains unchanged. No exported or public declarations were added, removed, or modified.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely describes the main change: replacing global with globalThis in the encodeB64 function, which matches the actual code modifications.

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commit: 634a7ff