Add IPIntel API support. (#33339)

Co-authored-by: PJB3005 <pieterjan.briers+git@gmail.com>

Content.Server.Database/ModelSqlite.cs

@@ -81,6 +81,11 @@ namespace Content.Server.Database
             modelBuilder.Entity<Profile>()
                 .Property(log => log.Markings)
                 .HasConversion(jsonByteArrayConverter);
+
+            // EF core can make this automatically unique on sqlite but not psql.
+            modelBuilder.Entity<IPIntelCache>()
+                .HasIndex(p => p.Address)
+                .IsUnique();
         }
 
         public override int CountAdminLogs()