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EVT 2026-02-17 - Stage F AI Tutor Day Boundary, Required Unavailable Fallback, and Submit Timestamp

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Session scope

Phần tiêu đề “Session scope”

Finalize day-state semantics and unavailable-required handling for AI Tutor daily required flow.

User-confirmed outcomes

Phần tiêu đề “User-confirmed outcomes”

User selected all recommended options.

  1. Day boundary:
    • Option A selected.
    • AI Tutor daily required state is reset at 00:00 in user local timezone.
  2. Required unavailable behavior:
    • Option A selected.
    • If today’s required item is unavailable, auto-replace using A -> B -> C fallback and show short notice.
  3. Completion day timestamp:
    • Option A selected.
    • Required completion/day attribution uses submit timestamp.

Product guardrail reaffirmed

Phần tiêu đề “Product guardrail reaffirmed”
  • Keep day-state logic deterministic and avoid dead-end user paths.

Trace

Phần tiêu đề “Trace”
  • Promoted into: DEC-0031
  • Reflected in: STATE_Practice_Recommendation
  • Reflected in: STATE_Notification_Reactivation