Why: Dev could ship a combination whose nested gitlinks differed from the top-level pins, and make test never ran the three agent libraries.
Evidence: A go.work was measured and not adopted: workspace MVS selected newer golang.org/x crypto, exp, net, term, and text than backend with GOWORK=off. check-pins passes on the new pins and fails when backend's squad pin is 5cbac00.
Impact: make test adds pin checks and GOWORK=off vet/test for intent, native, and squad. make build still compiles inside backend; the pin check requires those gitlinks to match Dev.
Refs: R0
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: Foundation task T0 of the UI/interaction base (proposal 2026-09-30,
D25-D33): add the new UI component library and command-bus ecosystem repos,
extend build/test/pin orchestration to twelve submodules.
Evidence: make test green on the pinned combo (core + backend 13 pkgs +
frontend 9 + ui 6 tests); make build produces bin/agent-system with combo
version string including ui; make contracts now generates to frontend and ui
with submodules staying clean; renderer/tokens migration verified
CSS-rule-identical (zero behavior change).
Impact: New modules/ui and deps/agent-command gitlinks; frontend consumes ui
via source alias; backend vendors agent-command (replace only, no import
yet); follows provider-first merges (ui PR#1/#2, agent-command PR#1,
documents PR#8, frontend PR#2, backend PR#6).
Refs: modules/documents docs/proposals/2026-09-30-ui-inbox-command-workspace.md
weichenandCursor