did:web support

[electricduck]

On ATProto, there are currently two DID methods: did:plc and did:web. I noticed I was unable to login to Ouranos with my did:web account, likely because its assuming a did:plc.

Essentially, instead of looking it up on plc.directory, Ouranous needs to:

• Resolve the handle to the DID, as normal; this time returning a did:web (e.g. did:web:yot.wtf)
• Pull out the domain from the did:web (i.e. yot.wtf) — do not use the handle (the domain can differ)
• Fetch the DIDDoc from the well-known path at the domain (i.e. https://yot.wtf/.well-known/did.json)
• Use the DIDDoc as if it were a did:plc doc

There are currently ~50 did:web accounts on Bluesky, so you can use that as a guideline for priority