Tighten redirect URI validation for metadata documents, honor
Cache-Control no-store when caching fetched documents, and resolve
clients on the same transaction as authorization. Load
external_client_id from the database and parse unbounded max-stale
directives in cachecontrol.
Signed-off-by: Bryan Frimin <bryan@probo.com>
MCP connectors such as ChatGPT and Claude register via HTTPS
client_id URLs instead of pre-provisioned GIDs. Fetch and cache
their metadata documents, upsert clients on first use, and
advertise CIMD in OIDC discovery when allowed URLs are configured.
Signed-off-by: Bryan Frimin <bryan@probo.com>
