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/Card.js.txt

@@ -0,0 +1,58 @@
+import React from 'react';
+
+const CSS = `
+.ct-card {
+  background: var(--surface-card);
+  border: 1px solid var(--border-hairline);
+  border-radius: var(--radius-3);
+  box-shadow: var(--shadow-1);
+}
+.ct-card--jade { box-shadow: var(--shadow-jade-line), var(--shadow-1); }
+.ct-card__header {
+  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
+  padding: 16px 20px 0;
+}
+.ct-card__title {
+  font: var(--text-title);
+  color: var(--ink-1);
+  margin: 0;
+}
+.ct-card__overline {
+  font: var(--text-overline);
+  letter-spacing: var(--letter-spacing-wide);
+  text-transform: uppercase;
+  color: var(--ink-3);
+  margin: 0 0 6px;
+}
+.ct-card__body { padding: 14px 20px 18px; }
+.ct-card__body--flush { padding: 0; }
+.ct-card__footer {
+  display: flex; align-items: center; gap: 8px;
+  padding: 12px 20px;
+  border-top: 1px solid var(--border-hairline);
+}
+`;
+(function inject() {
+  if (typeof document !== 'undefined' && !document.getElementById('ct-card-css')) {
+    const s = document.createElement('style'); s.id = 'ct-card-css'; s.textContent = CSS;
+    document.head.appendChild(s);
+  }
+})();
+
+export function Card({ title, overline, actions, footer, jade = false, flush = false, children, style, ...rest }) {
+  return (
+    <section className={`ct-card${jade ? ' ct-card--jade' : ''}`} style={style} {...rest}>
+      {(title || overline || actions) ? (
+        <header className="ct-card__header">
+          <div>
+            {overline ? <p className="ct-card__overline">{overline}</p> : null}
+            {title ? <h2 className="ct-card__title">{title}</h2> : null}
+          </div>
+          {actions ? <div style={{ display: 'flex', gap: '4px', flexShrink: 0 }}>{actions}</div> : null}
+        </header>
+      ) : null}
+      <div className={`ct-card__body${flush ? ' ct-card__body--flush' : ''}`}>{children}</div>
+      {footer ? <footer className="ct-card__footer">{footer}</footer> : null}
+    </section>
+  );
+}