The live AskDialog trusted question.question while its render helpers
(replaceTabs, renderQuestionTitle, questionTabLabel) assume a string. A
question reaching AskDialogComponent without a string question field threw
an uncaught TypeError that escaped the TUI render loop and killed the
session. The transcript renderer already normalizes the same malformed
data via normalizeRenderQuestions; the live path did not.
Normalize the questions array at dialog entry (new normalizeDialogQuestions),
coercing question/id/label to strings and options to a well-formed array,
matching the transcript path.
Fixes#7211
roboomp
8a059e3027