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- 新增 src/transcribe.ts：Transcriber 介面（策略模式）+ 工廠函式 - NoopTranscriber（預設：不轉錄） - isVideoPost() 判斷影片貼文 - transcribeVideoPosts() 批次處理 - UnifiedPost 新增 transcriptText 欄位 - index.ts：抓取後自動對影片貼文觸發轉錄，分析時包含轉錄文字 - facebook.ts：mediaUrl 優先取 video_url/playable_url（影片實際 URL） 具體轉錄服務實作待定，只需新增 Transcriber 實作並註冊到工廠。 透過 TRANSCRIBER 環境變數選擇轉錄器（預設 noop）。 Closes #4 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- 新增 GroqTranscriber：直接傳影片 URL 給 Groq Whisper API，不需下載到本地 - 使用 whisper-large-v3 模型，language=zh 優化中文辨識 - 透過 TRANSCRIBER=groq + GROQ_API_KEY 環境變數啟用 - README 補充 .env 設定與費用估算 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Facebook 影片 URL 實際是頁面連結（reel/watch），Groq API 無法直接存取。 改為：偵測 Facebook URL → yt-dlp 下載音訊 → 傳檔案給 Groq → 清理暫存。 非 Facebook 的直連 URL 仍走 url 參數快速路徑。 同時修正 facebook.ts mediaUrl 取值：影片貼文優先取 media.url（reel 連結）， 而非 thumbnail（縮圖 jpg），確保轉錄器拿到正確的來源。 已驗證：3 個影片貼文全部成功轉錄（28s/19s/49s）。 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
GroqTranscriber實作，接入 Groq Whisper API（whisper-large-v3）language=zh優化中文語音辨識準確度TRANSCRIBER=groq+GROQ_API_KEY=gsk_...Closes #4
架構
Test plan
TRANSCRIBER=groq+GROQ_API_KEY，執行npm run dev[影片轉錄]輸出TRANSCRIBER時行為不變（noop）🤖 Generated with Claude Code