feature: oauth proxy

[Hugos68]

This PR adds the OAuth proxy plugin to handle redirects to both production and local environments.

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Latest commit: 8b71f5c

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3 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
plus.skeleton.dev	Ignored	Preview	May 4, 2026 3:27pm
themes.skeleton.dev	Ignored		May 4, 2026 3:27pm
www.skeleton.dev	Ignored	Preview	May 4, 2026 3:27pm

[Hugos68]

@endigo9740 Before this PR is merged I need to ask you to update our callbackUri in all of our OAuth providers to: https://plus.skeleton.dev/api/auth/callback/{provider}.

Github: https://plus.skeleton.dev/api/auth/callback/github
Discord: https://plus.skeleton.dev/api/auth/callback/discord