Estimate: 26m · Depends on: 6.4.1, 6.4.4
The project-settings Members + Access UI, per design/projects/ (6.4.1). The Members panel lists project members with their role Pill, an add-member Combobox (scoped to workspace members not yet on the project), remove, and a role select; the Access control sets open / limited / private with the explanatory copy. Calls the 6.4.4 API optimistically; project-admin-only (non-admins see it read-only). Lives in the project settings area (alongside the 2.2.5 workflow editor; Story 6.5 later unifies these).
--el-*, shape via element tokens, AA-safe; matches the mockup; the add-member picker is scoped to workspace-members-not-yet-on-project.design/projects/ + design-notes.md (6.4.1); the workspace Members UI (Story 1.2/1.3) to mirror; components/ui/* (Combobox, Pill); Story 6.4.4 (the API)