feat: rename server package to hub

Rename the `server/` directory to `hub/` and update all references
across CLI, docs, web, and workspace configuration.

hub/package.json

@@ -0,0 +1,35 @@
+{
+    "name": "hapi-hub",
+    "private": true,
+    "version": "0.1.0",
+    "description": "Telegram Bot client for HAPI - control Claude Code sessions",
+    "author": "weishu",
+    "license": "AGPL-3.0-only",
+    "type": "module",
+    "scripts": {
+        "start": "bun run src/index.ts",
+        "dev": "bun --watch run src/index.ts",
+        "test": "bun test",
+        "typecheck": "tsc --noEmit",
+        "build": "bun build src/index.ts --outdir dist --target bun",
+        "generate:embedded-web-assets": "bun run scripts/generate-embedded-web-assets.ts"
+    },
+    "dependencies": {
+        "@hapi/protocol": "workspace:*",
+        "@socket.io/bun-engine": "^0.1.0",
+        "grammy": "^1.38.4",
+        "hono": "^4.11.2",
+        "jose": "^6.1.3",
+        "qrcode": "^1.5.4",
+        "socket.io": "^4.8.3",
+        "web-push": "^3.6.7",
+        "zod": "^4.2.1"
+    },
+    "devDependencies": {
+        "@types/node": ">=25",
+        "@types/qrcode": "^1.5.6",
+        "@types/web-push": "^3.6.4",
+        "bun-types": "^1.3.5",
+        "typescript": "^5"
+    }
+}