fix(ui): align contextual documentation with headings

Verified with the coordinated workspace changes by devkit full run
2026-09-08T225814-186389-0000-3e3ed7cd (all seven phases passed).
This shared UI pass does not mark the individual module reviews complete.

webui/src/features/committee/CommitteeBallotDialog.tsx

@@ -102,6 +102,7 @@ export default function CommitteeBallotDialog({
     <Dialog
       open={open}
       title={votingBallotId ? "Finalize Voting ballot" : "Finalize provider ballot"}
+      titleHelp={<DocumentationHelpLink reference={COMMITTEE_FIELD_DOCUMENTATION} />}
       onClose={requestClose}
       closeDisabled={busy}
       portal
@@ -121,7 +122,6 @@ export default function CommitteeBallotDialog({
       }
     >
       <div className="committee-record-form">
-        <div className="committee-dialog-help"><DocumentationHelpLink reference={COMMITTEE_FIELD_DOCUMENTATION} /></div>
         {error ? <DismissibleAlert tone="danger" resetKey={error}>{error}</DismissibleAlert> : null}
         <p className="committee-dialog-note">
           {votingBallotId