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]>

packages/adapters/README.md

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+# @umt/adapters
+
+外部系统适配层:qBittorrent、RSS、站点(观众 NexusPHP / 馒头 API)、TMDB、Emby 兼容服务器与文件系统。对上只暴露端口接口,凭证经 secret reference 注入,日志一律脱敏。

packages/adapters/package.json

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+{
+  "name": "@umt/adapters",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "scripts": {
+    "typecheck": "tsc -p tsconfig.json",
+    "test": "vitest run"
+  }
+}

packages/adapters/src/index.ts

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+// @umt/adapters 公开入口;W1 起在此导出实现
+export const PACKAGE_NAME = "@umt/adapters";

packages/adapters/test/index.test.ts

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+import { expect, it } from "vitest";
+import { PACKAGE_NAME } from "../src";
+
+it("包入口可加载", () => {
+  expect(PACKAGE_NAME).toBe("@umt/adapters");
+});

packages/adapters/tsconfig.json

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+{
+  "extends": "../../tsconfig.base.json",
+  "include": ["src", "test"]
+}