inquiry-mining

Mine the user's own question history that CGU stores locally (opt-in inquiry memory): group recurring themes, show framing habits, stalled topics, cross-theme bridges and dormant ideas, then hand the one the user picks to creative-ideation or frame-audit. Use when the user asks what they keep asking, wants patterns across past questions, feels stuck on a topic they keep returning to, or wants inspiration from their own history. 觸發詞：我最近都在問什麼、整理我的提問、我的問題有什麼模式、反覆問同一件事、從我問過的問題找靈感、提問記憶、卡在同一個主題、我之前放棄的點子。Not for answering one new question and never runs without the user's opt-in.