Fix Web Sockets. Form into library. Move demo to demo folder. Split demo between sse and websocket.

package-lock.json

@@ -15,7 +15,7 @@
         "zod": "^4.4.3"
       },
       "devDependencies": {
-        "@types/node": "^26.1.1",
+        "@types/node": "^26.6.1",
         "tsx": "^4.23.1",
         "typescript": "^7.0.2"
       }
@@ -472,13 +472,13 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "26.2.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.2.0.tgz",
-      "integrity": "sha512-5IviulTZeRNp2vAJ514cc/HUlY5nZ9fCbq9DMyC52BrhFZACo3nI0R7qBxhQmo/d27NFe96ur/b7Wwxklda+kg==",
+      "version": "26.6.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.1.tgz",
+      "integrity": "sha512-VqGJBMCtdhqkBUCcBLvywI0NJ+KLuVzgNnlBUNFOQjqVxzo2lxLUNg1DSey8+u2u6ktswSAxg+s68QLzWHNOuA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~8.3.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@typescript/typescript-aix-ppc64": {
@@ -989,9 +989,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
-      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
+      "version": "8.9.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.9.0.tgz",
+      "integrity": "sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==",
       "dev": true,
       "license": "MIT"
     },