feat(oauth): add Facebook OAuth provider

[halvaradop]

Description

This pull request adds the Facebook OAuth provider to the list of supported OAuth integrations in @aura-stack/auth.

The provider implementation follows the existing OAuth provider architecture and can be configured through the oauth option in createAuth().

Usage

import { createAuth } from "@aura-stack/auth"

export const auth = createAuth({
  oauth: ["facebook"],
})

export const { handlers } = auth

Note

This pull request is currently marked as Draft because the Facebook OAuth integration has not yet been fully validated.

While Meta provides documentation for creating a Facebook application, the OAuth setup process is fragmented and difficult to follow. Several referenced URLs and endpoints are outdated or no longer available, making it challenging to complete an end-to-end integration and verify the implementation.

Once the provider has been successfully configured and validated against a real Facebook application, this PR will be ready for review.

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
auth	Skipped		Jul 4, 2026 1:31am

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: b32c1d36-4614-4837-82a4-44dadba54562

📥 Commits

Reviewing files that changed from the base of the PR and between dc33675 and 81dbcaa.

📒 Files selected for processing (2)

• packages/core/CHANGELOG.md
• packages/core/src/oauth/facebook.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/add-facebook-oauth

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