chore: scaffold monorepo and migrate uhd_web design system (W0-A)

- pnpm workspace: apps/{web,server}, packages/{contracts,db,domain,adapters,tasks,agent,testkit}
- server: Hono + zod-openapi, API Key auth with scopes, redacting pino logger, SSE event bus with replay, worker heartbeat
- db: Kysely + pg, file migrator, 0001_init (settings/api_key/audit_event/outbox_event)
- web: React Router 7 SPA console shell with 12 workspace placeholders, uhd_web tokens/ui/guard scripts
- docs: ADR-001 (Node over Deno), dev runbook, design system rules

Co-Authored-By: Claude Fable 5.1 <[email protected]>

apps/web/app/components/console/status-badge.tsx

@@ -0,0 +1,37 @@
+import type { ReactNode } from "react";
+import { cn } from "~/lib/utils";
+
+export type StatusTone = "success" | "warning" | "destructive" | "neutral";
+
+// 状态色只表示状态,不做装饰(docs/design/interface-materials.md)
+const TONE: Record<StatusTone, { box: string; dot: string }> = {
+  success: { box: "border-success/30 bg-success/10 text-success", dot: "bg-success" },
+  warning: { box: "border-warning/30 bg-warning/10 text-warning", dot: "bg-warning" },
+  destructive: { box: "border-destructive/30 bg-destructive/10 text-destructive", dot: "bg-destructive" },
+  neutral: { box: "border-border bg-foreground/[0.04] text-muted-foreground", dot: "bg-muted-foreground" },
+};
+
+/** 状态徽章:文字必填,不只靠颜色传达状态 */
+export function StatusBadge({
+  tone = "neutral",
+  children,
+  className,
+}: {
+  tone?: StatusTone;
+  children: ReactNode;
+  className?: string;
+}) {
+  const t = TONE[tone];
+  return (
+    <span
+      className={cn(
+        "inline-flex items-center gap-1.5 rounded-full border px-2 py-0.5 text-meta font-medium whitespace-nowrap",
+        t.box,
+        className,
+      )}
+    >
+      <span aria-hidden className={cn("h-1.5 w-1.5 rounded-full", t.dot)} />
+      {children}
+    </span>
+  );
+}