Connectors
The IDocumentSource extension point and the filesystem reference connector.
IDocumentSource is the extension point. A connector enumerates documents out
of a system the customer already runs, converts them to Markdown so the
structural chunker can see headings, and supplies each document's permissions
from the source system's own model.
FileSystemSource ships as the reference implementation: Markdown and plain
text out of a folder tree, with access supplied per path. It takes no
credentials, which makes it the one connector that can be demonstrated on a
laptop.