Bug Fixes 1

• Setup step 79 batch unique constraint owner backfill (#12803, #12740, #12785)

  Optimizes setup step 79 by paging unique-constraint owner backfills to avoid row lock issues on large tables. This fix addresses issues where projection tables were joined before creation/replay and ensures correct handling of array elements containing commas by implementing proper quoting and escaping in TextArray.Value.

  Setup Migration Database