fix: use a single light-background diagram image per page The #gh-light-mode-only / #gh-dark-mode-only suffix trick does not apply on wiki pages, so both images were rendering at once regardless of viewer theme. Drop the dark variants and keep one white-background SVG per diagram, which stays legible against both light and dark wiki themes.
fix: replace live Mermaid diagrams with pre-rendered SVG images GitHub's wiki renderer fails on every Mermaid diagram in this wiki ("Unable to render rich display"), even though the identical source rendered fine as plain repo files. Pre-render each diagram to SVG with mermaid-cli instead of relying on the wiki's live renderer, and embed a light/dark pair per diagram using GitHub's #gh-light-mode-only / #gh-dark-mode-only suffix so the correct one shows per viewer theme.
docs: overhaul wiki with technical, vision, and testing documentation Move the technical documentation (architecture, Pivot IR, importers, CLI) from the main repo's docs/ folder into dedicated wiki pages under a Technical Documentation index, add a Testing page, and add a Vision section (product vision, planned SaaS API/CLI spec) clearly separated from what is actually implemented today. Add a categorized sidebar and correct Home's Features section to match the current implementation.