Allow creation of records for unknown collections.

[mikuhl-dev]

If clients are to implement their own features, allowing the creation of records on unknown collections is needed. Unknown collections will eventually end up on on the server anyway if someone moves their data from one with a feature to one without. Ideally the server should not delete the data it doesn't understand.

Request:

curl --request POST \
  --url https://bsky.social/xrpc/com.atproto.repo.createRecord \
  --header 'Content-Type: application/json' \
  --data '{
	"repo": "mikuhl.bsky.social",
	"collection": "org.bitcoin.lightning.profile",
	"rkey": "self",
	"record": {
		"lud16": "mikuhl@ln.tips"
	}
}'

Response:

{
	"error": "InvalidRequest",
	"message": "Lexicon not found: lex:org.bitcoin.lightning.profile"
}

Request:

curl --request POST \
  --url https://bsky.social/xrpc/com.atproto.repo.putRecord \
  --header 'Content-Type: application/json' \
  --data '{
	"repo": "mikuhl.bsky.social",
	"collection": "org.bitcoin.lightning.profile",
	"rkey": "self",
	"record": {
		"lud16": "mikuhl@ln.tips"
	}
}'

Response:

{
	"error": "InvalidRequest",
	"message": "Temporarily only accepting puts for app.bsky.actor.profile/self."
}