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]>

docker-compose.dev.yml

@@ -0,0 +1,22 @@
+# 开发数据库:pnpm db:up / docker compose -f docker-compose.dev.yml up -d
+name: umt-dev
+services:
+  postgres:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: umt
+      POSTGRES_PASSWORD: umt
+      POSTGRES_DB: umt
+    ports:
+      - "127.0.0.1:55433:5432"
+    volumes:
+      - umt-pg-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U umt -d umt"]
+      interval: 5s
+      timeout: 3s
+      retries: 20
+
+volumes:
+  umt-pg-data: