7de12c6541
Replace all #hex literals with nexus-token CSS variables:
- iris badges/dots/assignee/banner → var(--clr-iris)
- bao dots/assignee/meta-chip → var(--clr-bao)
- agent assignee → var(--clr-agent)
- stale banners/badges/dots/counts → var(--clr-stale)
- review btn-changes/state pill → var(--clr-review)
- other dots/column ring → var(--clr-other)
- expected badge → var(--a-purple)
- success flash/state pill → var(--pill-progress)
- backlog state pill → var(--pill-backlog)
- all #fff references → var(--tx)
Add --pill-* state pill color tokens to nexus-tokens.css.
Fix #fff in nexus-btn-gradient in tokens.css.
Task: ea7c2063
Ref: 50d95fa (V2 Design-Fundament)