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/server/package.json

@@ -0,0 +1,30 @@
+{
+	"name": "@celebrate-esc/server",
+	"version": "0.0.0",
+	"private": true,
+	"type": "module",
+	"scripts": {
+		"dev": "bun --env-file=../../.env --watch src/index.ts",
+		"build": "tsc --noEmit",
+		"start": "node --experimental-strip-types src/index.ts",
+		"test": "vitest run",
+		"test:watch": "vitest",
+		"typecheck": "tsc --noEmit"
+	},
+	"dependencies": {
+		"@celebrate-esc/shared": "workspace:*",
+		"@hono/node-server": "latest",
+		"@hono/node-ws": "latest",
+		"@hono/zod-validator": "latest",
+		"drizzle-orm": "latest",
+		"hono": "latest",
+		"pg": "latest",
+		"zod": "latest"
+	},
+	"devDependencies": {
+		"@types/pg": "latest",
+		"drizzle-kit": "latest",
+		"typescript": "latest",
+		"vitest": "latest"
+	}
+}