feat: initial SleepGuard implementation

Wake-on-demand proxy + agent system with SvelteKit dashboard.
Monorepo: shared types, proxy (Hono + http-proxy), agent (monitors + locks), web (SvelteKit SPA).

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

packages/proxy/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@sleepguard/proxy",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc",
+    "start": "node dist/index.js",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@hono/node-server": "^1.14.0",
+    "@sleepguard/shared": "workspace:*",
+    "hono": "^4.7.0",
+    "http-proxy": "^1.18.1",
+    "ws": "^8.18.0"
+  },
+  "devDependencies": {
+    "@types/http-proxy": "^1.17.0",
+    "@types/node": "^22.0.0",
+    "@types/ws": "^8.5.0",
+    "tsx": "^4.19.0",
+    "typescript": "^5.7.0"
+  }
+}