`POST` `/test/complete`

Complete Test

Request Body (`TestCompletePayload`)

Field	Type	Required	Description
`test_id`	`string`	Yes	UUID of the test
`idempotency_key`	`string`	No	Idempotency key — replays the prior call; on the ack, the server-minted soft key to activate/reject the staged completion
`soft`	`boolean`	No	Stage the completion dormant (all completion rows active=False); accept activates the whole set
`accept`	`boolean`	No	Ack: True activates the staged completion, False rejects. Only meaningful with idempotency_key

Field	Type	Required	Description
`test_id`	`string`	Yes	—
`success`	`boolean`	No	—
`completed_count`	`integer`	No	—
`idempotency_key`	`string`	No	—