[chore] Migrate accounts to new table, relax uniqueness constraint of actor url and collections (#3928)

* [chore] Migrate accounts to new table, relax uniqueness constraint of actor url and collections

* fiddle with it! (that's what she said)

* remove unused cache fields

* sillyness

* fix tiny whoopsie

internal/db/bundb/basic_test.go

@@ -55,7 +55,7 @@ func (suite *BasicTestSuite) TestPutAccountWithBunDefaultFields() {
 		URL:          "https://example.org/@test",
 		InboxURI:     "https://example.org/users/test/inbox",
 		OutboxURI:    "https://example.org/users/test/outbox",
-		ActorType:    "Person",
+		ActorType:    gtsmodel.AccountActorTypePerson,
 		PublicKeyURI: "https://example.org/test#main-key",
 		PublicKey:    &key.PublicKey,
 	}
@@ -87,7 +87,6 @@ func (suite *BasicTestSuite) TestPutAccountWithBunDefaultFields() {
 	suite.Empty(a.NoteRaw)
 	suite.Empty(a.AlsoKnownAsURIs)
 	suite.Empty(a.MovedToURI)
-	suite.False(*a.Bot)
 	// Locked is especially important, since it's a bool that defaults
 	// to true, which is why we use pointers for bools in the first place
 	suite.True(*a.Locked)