Knowledge map and home

Hierarchical taxonomy of terms (taxonomy_nodes) and their links to channels / wiki spaces / article channels (taxonomy_resource_links). Rendered as a force graph on the signed-in home page. Toggle: taxonomy (default on).

Feature	Status	Description
Knowledge Map (data model)	✅	Hierarchical taxonomy_nodes and taxonomy_resource_links (document channel, article channel id, wiki space); GET/POST/PATCH/DELETE /api/taxonomy/* (FastAPI app.api.knowledge_map); taxonomy:read / taxonomy:write permission keys with default route/API patterns (SPA primary path /knowledge-map, legacy /taxonomy redirects)
Knowledge Map UI	✅	/knowledge-map (lazy; /taxonomy redirects); sidebar Knowledge Map above Glossaries when feature toggle + path allowed; sitemap-style copy; Tree column + Node details panel (selected node: path, description, Refer to list scoped to that node); New node modal (preferred label, description, broader/parent); reorder/move/edit/delete; upsert/delete refer-tos from details only
Home hub	✅	Signed-in / loads GET /api/home/hub when taxonomy:read or documents:read (hub JSON: taxonomy counts, work items, placeholder share_requests). With taxonomy:read (and taxonomy toggle): Knowledge Map graph (wiki-style react-force-graph-2d, KnowledgeMapForceGraph) is the page center: GET /api/taxonomy/nodes/tree + GET /api/taxonomy/resource-links; taxonomy nodes (circles) vs resource nodes (distinct shapes: document channel pill, wiki hexagon, articles pill); tree vs refer-to link styling; term click → /knowledge-map?node=, resource click → open channel/wiki/articles; work items and browse shortcuts sit below. Without taxonomy read: work items + shortcuts only (centered column)
Static home (guests)	✅	/ always shows HomeStaticLanding for unauthenticated users (marketing hero, pain points, benefits, functionalities, Sign in CTA); no system setting—MainLayout only gates non-home routes
Feature toggle	✅	taxonomy (default on); Console → Feature Toggles