ContentFrame Server

Endpoints:

• GET /api/frame/{frameId}/view — random photo as 800×480 JPEG
• GET /api/frame/{frameId}/state — { SleepMins }
• GET /api/image/icloud/{w}/{h} — random photo as JPEG
• GET /api/image/icloud/{w}/{h}/dither — dithered (7-colour) JPEG
• GET /api/frameconfig/ — deprecated, { SleepMins: 60 }