Replace llm_usag

Full replace with optimistic locking.

Pfad-Parameter

Name	Typ	Beschreibung
`id`erforderlich	`string`

curl -X PUT https://api.codemeta-os.de/v1/llm_usage/{id} \
  -H "X-Tenant-Id: $TENANT" \
  -b cookies.txt

const result = await cm.llm_usage.put();

HTTP	Bedeutung
`200`	Default Response