v3.6.4

June 18, 2026 (v3.6.4)

• Robust Math/Image Cloze Parsing: Fixed sequential queue processing skipping cloze cards that contain images or formulas by returning an explicit existence boolean instead of checking if the text content is empty.
• HTML Image Descriptor Preservation: Enhanced _clean_html to convert <img> tags into descriptive textual placeholders (e.g. [Image: filename - alt]) rather than stripping them completely. This preserves context for math clozes and allows the LLM to generate higher quality hints.
• Stuck/Failed Card ID Visibility: Added real-time tracking and visual display of failed card IDs in the batch generation status summary. Clickable card links are shown for active, dormant, and completed queue runs.
• Startup Connection Stability: Delayed sequential queue auto-resume until after the local proxy daemon is fully initialized.