Scaffold CommiTea: yarn workspaces, Electron shell, core label schema, design system

- apps/desktop: electron-vite + React + Tailwind mapped onto design tokens
  (preflight off; tokens/base.css owns the reset); boots to a Reginald
  placeholder proving fonts/tokens/core wiring
- packages/core: pure TS; gitea label schema (est/*, p/*, deadline/hard)
  with pessimistic conflict resolution + 15 unit tests
- docs/design: full design handoff (tokens, 16 component contracts,
  interactive 14-screen prototype, Reginald voice rules)
- docs/PLAN.md: product plan (purity rule, pm-state repo, deterministic
  scheduler + Monte Carlo, directive log)
- Deliberate deviation from novelpad stack: no ElectricSQL/PGlite — local
  store is a rebuildable cache over gitea REST/webhooks (better-sqlite3
  in main process, arriving in P1)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/design/components/core/Badge.d-ts.txt

@@ -0,0 +1,12 @@
+/**
+ * Status pill — muted tint background, colored text. For state words like "ahead", "behind", "steeping".
+ */
+export interface BadgeProps {
+  /** @default 'neutral' */
+  tone?: 'ok' | 'warn' | 'danger' | 'info' | 'neutral' | 'jade';
+  /** Leading status dot @default false */
+  dot?: boolean;
+  children?: React.ReactNode;
+  style?: React.CSSProperties;
+}
+export declare function Badge(props: BadgeProps): JSX.Element;