Integrated, working.

This integrates the liteq, and it prevents duplicates in a way that
matches my use-case.

I might try and push things back out to a separate module, but for now,
this will do.

internal/domain64/database.go

@@ -8,7 +8,7 @@ import (
 	"slices"
 	"sync"
 
-	sqlc "git.jadud.com/grosbeak/internal/domain64/sqlc"
+	sqlc "git.jadud.com/jadudm/grosbeak/internal/domain64/sqlc"
 	"github.com/jpillora/go-tld"
 )