feat: OAuth and permissions for mobile app

[a-lider]

Problem

Support OAuth for PostHog AI x Array mobile app. PR: https://github.com/PostHog/Array/pull/224

Changes

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How did you test this code?

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[posthog-bot]

Query snapshots: Backend query snapshots updated

Changes: 1 snapshots (1 modified, 0 added, 0 deleted)

What this means:

• Query snapshots have been automatically updated to match current output
• These changes reflect modifications to database queries or schema

Next steps:

• Review the query changes to ensure they're intentional
• If unexpected, investigate what caused the query to change

Review snapshot changes →

[github-actions[bot]]

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