jack/PPT @ 0c23e85efa2126bf455d129bb566fccd936f0124

jimmylee 40bf92f5dc docs: plan english speaking task hint modal		5 月之前
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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	5 月之前
2026-04-25-english-speaking-task-hint-modal.md	40bf92f5dc docs: plan english speaking task hint modal	5 月之前