[dashboard DDX-15] Claude design-sync artifact + panel prototype

[rickylabs]

Part of #400 · Part of #301

Handle: DDX-15 · Milestone: 0.0.1-beta.6 · Dep: DDX-0. Blocks: DDX-5 and panels. Lane: Claude (design/prototype); framework wiring is WSL Codex (DDX-5).

Scope — MANDATORY Claude design-sync artifact + panel prototype

Acceptance

• plugins/dashboard/.design-sync/ (config.json, conventions.md reusing NS One / fresh-ui L0–L4, previews per panel + promoted block with real content, NOTES.md with the compiled-closure re-sync recipe) + a Fresh prototype of the panel shell leveraging fresh-ui seams.
• Truth chain points at the real component tree, never previews/.

Design source: design/A-dashboard/epic-and-issues.md (DDX-15).

[rickylabs]

Dependency edge (DAG second pass): Depends on #410 (DDX-0).

[rickylabs]

Superseded-in-execution (owner-ratified, 2026-07-06).

This slice's scope has been expanded and is being executed by a dedicated design run — see tracking issue #507 (Backlog / Triage) and draft PR branch feat/dashboard-design-prototype (run dir .llm/runs/feat-dashboard-design-prototype--design/).

Scope changes vs the filed DDX-15:

• Expanded from ".design-sync artifact + Fresh panel-shell prototype" to a full E2E Claude Design prototype (shell + 7 panels + 4 capability sections, light/dark) on a new design system synced at 100% parity from current fresh-ui, plus a production-grade reusable sync system at tools/design-sync/.
• The DDX-0 → DDX-15 dependency is inverted: prototype pass 1 validates/amends the DDX-0 L3 promote-set before DDX-0 is implemented (eis-chat two-pass loop).
• Artifacts land at resources/design/dashboard/ and migrate to plugins/dashboard/.design-sync/ when DDX-2/DDX-4 create the plugin.

This issue stays open as the beta.6 tracking point; the run's PR carries Closes #425 and resolves it on merge. DDX-5 (#415) and all panel slices are blocked on that delivery.