UserPreferences

Arbitrary per-user application preference storage.

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GET /api/user-preferences

Returns the authenticated user's application preferences as a JSON object. Returns null if no preferences have been saved.

Response (200): Arbitrary JSON preferences object, or null.

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PUT /api/user-preferences

Saves application preferences for the authenticated user. Creates or updates the existing record.

Request body: Any valid JSON object with preference key-value pairs.

Response (200): The saved preferences object.