fix(regression): drop reference to removed Fragment.reconciled field
The merged regression-capture code referenced Fragment.reconciled, which was
removed in the single-pass refactor — so the branch failed `tsc` (type
stripping hid it at runtime). Single-pass produces one fragment per page with
no reconciled fragments, so the guard is dead; remove it. Branch typechecks
clean again; e2e green.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>