implement foundation + room system (Plan 1 of 5)

Bun workspace monorepo with shared, server, client packages.
Server: Hono + @hono/node-ws, Drizzle + PostgreSQL, in-memory room manager
with WebSocket broadcasting, HTTP room creation, DB persistence layer.
Client: React 19 + Vite + Tailwind v4 + shadcn/ui, TanStack Router with
landing/display/host/player routes, Zustand store, WebSocket connection hook.
20 tests passing (room manager unit + WS integration).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/client/package.json

@@ -0,0 +1,35 @@
+{
+	"name": "@celebrate-esc/client",
+	"version": "0.0.0",
+	"private": true,
+	"type": "module",
+	"scripts": {
+		"dev": "vite",
+		"build": "tsc -b && vite build",
+		"preview": "vite preview",
+		"typecheck": "tsc --noEmit"
+	},
+	"dependencies": {
+		"@celebrate-esc/shared": "workspace:*",
+		"@radix-ui/react-slot": "^1.2.4",
+		"@radix-ui/react-tabs": "^1.1.13",
+		"@tanstack/react-router": "latest",
+		"class-variance-authority": "^0.7.1",
+		"clsx": "^2.1.1",
+		"lucide-react": "^0.577.0",
+		"react": "latest",
+		"react-dom": "latest",
+		"tailwind-merge": "^3.5.0",
+		"zustand": "latest"
+	},
+	"devDependencies": {
+		"@tailwindcss/vite": "latest",
+		"@tanstack/router-plugin": "latest",
+		"@types/react": "latest",
+		"@types/react-dom": "latest",
+		"@vitejs/plugin-react": "latest",
+		"tailwindcss": "latest",
+		"typescript": "latest",
+		"vite": "latest"
+	}
+}