POST /v1/video/sessions/complete
動画視聴セッションの終了 — auth: required
Request example
{
"session_id": "3f9a1c7e-6b2d-4e58-9a41-0c7d5e2b8f13",
"purpose": "video_reward",
"result": "rewarded",
"rewarded_at": "2026-08-27T14:32:05+09:00"
}