the tag taxonomy

Character tags arrive as free strings from every source format (discovery.tags is string[]); no
format carries a category on the wire. The editor still colors each tag chip by KIND, so a pure
classifier decides which category a tag string belongs to.

Source: src/core/tag-taxonomy.ts (pure, tested in the sibling tag-taxonomy.test.ts). Presentation
(the per-category color and icon) lives in the UI layer at src/ui/apps/workbench/Editor.tsx
(TAG_CATEGORY_STYLE), not in core.

Categories

categorizeTag(tag: string): TagCategory folds the tag to a lookup key (drop a leading #, lowercase,
collapse _, -, /, and whitespace to single spaces) and reads a seed dictionary. The categories:

Category	Covers	Editor color
identity	gender, sexuality, species	cyan
trait	personality, dere, archetype	violet
role	occupation, dynamic, relationship	rose
genre	genre	indigo
theme	trope / theme	pink
setting	place, era, environment	emerald
pov	narrative POV	sky
mood	mood / tone	amber
kink	kink	red
warning	trigger / content warning	orange
meta	authoring provenance, and the fallback for anything unrecognized	slate

Deliberately a seed, not the full taxonomy

The dictionary is a curated seed of common tags, mirroring RoleCall's display-category scheme. It is
NOT the full ~1000-tag taxonomy; unrecognized tags resolve to meta (neutral slate) and are never
mis-colored. The discovery milestone (Open Tagsheet) widens the dictionary by adding rows to SEED,
never by adding code branches - the lookup stays a single normalized Map.