Ghost OS v2.0.5

What's New

• Vision grounding — ghost_ground and ghost_parse_screen tools. ShowUI-2B runs locally for visual element detection in web apps where the AX tree falls short.
• Auto-start vision sidecar — The vision model server starts automatically on first ghost_ground call. No manual setup.
• ghost setup installs vision — Step 6 now creates a Python venv, installs mlx_vlm, and downloads ShowUI-2B (~2.8 GB).
• ghost doctor checks vision — Reports ghost-vision binary, model status, and sidecar health.

Fixes

• Fix GHOST-MCP.md not loading for Homebrew installs (path resolution)
• Fix sidecar double-spawn when first attempt is slow to respond
• Fix pipe deadlock in ghost doctor and ghost setup on large output
• Fix tempfile race conditions in vision sidecar
• Add request body size limit to vision sidecar
• Add version consistency check to release build script
• Require both config.json and model weights for model validation