08aa04c505
3a0c45a0 introduced buildDialogFormBodyProps + buildDialogFooterProps
to slim TaskCreateDialog under the function-line cap, but adding them
in-file pushed task-create-dialog.tsx to 612 raw lines. Local eslint
still passes (skipBlankLines + skipComments brings the effective count
under 600), but Claude's review flagged the raw-line growth as a
blocker — and the prop builders are pure projections from setup state
to plain JS objects, no JSX, so they belong outside the component
module anyway.
Move computeHasAllBranches and both builders to a new
task-create-dialog-prop-builders.ts. Export TaskCreateDialogProps and
useTaskCreateDialogSetup from dialog.tsx so the builders can derive
their parameter types via ReturnType<typeof useTaskCreateDialogSetup>.
task-create-dialog.tsx: 612 → 522 raw lines.