jack/PPT @ 2e8d98371671aff00e01e608ad0d48201a0c7a1f

jimmylee 40bf92f5dc docs: plan english speaking task hint modal		4 mesiacov pred
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2026-04-25-english-speaking-dialogue-prompt.md	d2b22fbc40 docs(speaking): add design spec and implementation plan for grade-aware system prompt	3 mesiacov pred
2026-04-25-english-speaking-task-hint-modal.md	40bf92f5dc docs: plan english speaking task hint modal	3 mesiacov pred