Adds a dedicated self-hosting page documenting how to apply an
Enterprise license key, and cross-links it from the related docs.
New page: self-hosting/configuration/license.mdx — "Apply Your License
Key"
Set NEXT_PRIVATE_DOCUMENSO_LICENSE_KEY (Docker Compose / docker run /
.env tabs)
## Description
Corrected API endpoint path from /api/v2/documents to /api/v2/document
The current example in the docs(/api/v2/documents) returns a 404
NOT_FOUND object.