Remove auth dependency

[kleberbaum]

Summary

• drop auth usage to avoid crypto.createSign
• patch pylon to avoid crypto.createSign

Testing

• npm run build (fails: Cannot find type definition file for 'bun-types')
• npm test (fails: vitest not found)

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https://chatgpt.com/codex/tasks/task_e_6860245c2490832d86639962e35b1ba3

[Copilot]

Pull Request Overview

This PR removes the usage of auth dependency by eliminating crypto.createSign and replacing it with a WebCrypto-based implementation, as well as patching pylon accordingly.

• Updated node_modules/@getcronit/pylon/auth.js to use WebCrypto instead of crypto.createSign.
• Added a postinstall script and patch-package dependency in package.json to ensure patch application.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
patches/@getcronit+pylon+2.0.0.patch	Replaces crypto.createSign with WebCrypto functions
package.json	Adds postinstall script for patch-package and new dependency

Comments suppressed due to low confidence (1)

patches/@getcronit+pylon+2.0.0.patch:10

• Ensure that the function containing these asynchronous operations is declared as async; otherwise, the use of await will result in a syntax error.

+  const key = await crypto.subtle.importKey(