v1.8.0

What's New

AI Describe — Accessibility Feature

• (describe) command: AI-powered verbal descriptions of 3D geometry for blind and low-vision users
• (ai-ask) follow-up questions with full conversation history
• AI self-refinement: the AI can request additional views and cross-sections automatically
• Multi-provider support: OpenAI, Google Gemini, Anthropic Claude, Ollama
• Google Gemini added to Settings UI with model selector

View Capture & Export

• Offscreen rendering of orthographic and perspective views
• Cross-section slicing at arbitrary axis-aligned planes (render-slice)
• Single-image download (save-image) and multi-view ZIP export (save-views)

Shell & Woven Shell

• shell shape-fn: variable-thickness hollow extrusion with openings
• woven-shell: orthogonal mode, combined crossings
• Comprehensive tests for shell shape-fns

Other Improvements

• Accessibility: audio feedback, ARIA attributes, screen reader support
• Warp fix: triangle-volume intersection, midpoint subdivision, crease normals
• Manual: gallery updates, voronoi hi-res, Italian titles