Why: The expanded user requirement needs explicit normal-work source intake and timely clarification criteria.
Evidence: Original .tmp data-flow and dialog sources were matched by SHA; fixed Backend public surfaces and current requirements were checked; local links and approved document hashes passed.
Impact: Add an unapproved stage-two scope evaluation and two candidate requirement IDs; prior approvals and product code remain untouched.
Refs: TT-N01, TT-G03, proposed TT-N03 and TT-R01; stage 2 amendment r1
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