feat: implement and deploy blind_chess MVP

- pnpm workspace: shared/server/client packages
- Server: Fastify+ws, chess.js, FSM (touch-move + hierarchy),
  per-player view filter, zod validation, rate limiting, grace-window
  disconnect handling
- Client: Svelte 5 + Vite, click-to-move board, moderator panel,
  promotion/draw dialogs
- Shared: protocol types, ModeratorText enum, geometricMoves helper
  (provably zero opponent-info leak)
- 43 tests pass (21 shared, 22 server incl. 4 real-WS integration)
- Deploy: CT 690 on node-241 (192.168.0.245), systemd-managed,
  Caddy block for chess.sethpc.xyz
- Live at https://chess.sethpc.xyz

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/server/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@blind-chess/server",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "main": "dist/server.js",
+  "scripts": {
+    "build": "tsc -b",
+    "dev": "tsx watch src/server.ts",
+    "start": "node dist/server.js",
+    "test": "vitest run",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@blind-chess/shared": "workspace:*",
+    "@fastify/static": "^8.0.0",
+    "@fastify/websocket": "^11.0.0",
+    "chess.js": "^1.4.0",
+    "fastify": "^5.2.0",
+    "pino": "^9.5.0",
+    "ws": "^8.18.0",
+    "zod": "^3.24.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.0",
+    "@types/ws": "^8.5.13",
+    "pino-pretty": "^11.3.0",
+    "tsx": "^4.19.2",
+    "typescript": "^5.6.0",
+    "vitest": "^3.0.0"
+  }
+}