fix(datacopy): quote identifiers in pg_get_serial_sequence via format('%I.%I')

src/GreenHome.DataCopy/Program.cs

@@ -169,8 +169,11 @@ internal static class Program
         if (max > 0)
         {
             // Keep the identity sequence above the copied max so new rows don't collide
+            // %I quotes each identifier so pg_get_serial_sequence keeps the
+            // exact case EF created the table/column with (unquoted literals
+            // get folded to lowercase -> 42P01 "relation does not exist")
             await target.Database.ExecuteSqlRawAsync(
-                $"SELECT setval(pg_get_serial_sequence('{table}', '{pkName}'), {max})");
+                $"SELECT setval(pg_get_serial_sequence(format('%I.%I', '{table}', '{pkName}')), {max})");
         }
         Console.WriteLine($"\n[done ] {table}: copied={copied}, maxId={max}");
     }