add @alkdev/pubsub dependency (was documented in architecture but missing from package.json)

package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.1.0",
       "license": "MIT OR Apache-2.0",
       "dependencies": {
+        "@alkdev/pubsub": "^0.1.0",
         "@alkdev/typebox": "^0.34.49",
         "@preact/signals-core": "^1.14.1"
       },
@@ -23,6 +24,23 @@
         "node": ">=18.0.0"
       }
     },
+    "node_modules/@alkdev/pubsub": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/@alkdev/pubsub/-/pubsub-0.1.0.tgz",
+      "integrity": "sha512-CdCyBMJEWwrSDAalaZCsBHDscljijgx4PdfYjjpV33PB6ad3KNNX1hoIiYGlO0YgARyd466lXqmth2Kw8J5JNw==",
+      "license": "MIT OR Apache-2.0",
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "peerDependencies": {
+        "ioredis": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "ioredis": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@alkdev/typebox": {
       "version": "0.34.49",
       "resolved": "https://registry.npmjs.org/@alkdev/typebox/-/typebox-0.34.49.tgz",