Register table endpoint should honor access delegation #2351
Description
Is your feature request related to a problem? Please describe.
The IRC spec for the register-table endpoint does not mention access delegation headers, contrary to the other table endpoints.
Polaris currently does not consider access delegation at all when registering a table. As a consequence, the returned LoadTableResult does not contain any config for vended credentials nor for remote signing.
This is bad, because the returned config is unusable if the client is not in possession of valid credentials to access the storage.
Describe the solution you'd like
Polaris should honor the access delegation headers in the register-table endpoint, and return appropriate config for either vended credentials or remote signing.
Describe alternatives you've considered
No response
Additional context
This issue came up while developing support for remote signing:
Some context: #2280 (comment)