docs: rank the destructive generator as item 0

It was written up in 4.7 but never made the work order, which is exactly how it
stayed dangerous in the first place.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

examples/inter-app-api-showcase/packages/shared/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "@app/shared",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "main": "src/index.ts",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "scripts": {
+    "typecheck": "tsc --noEmit",
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@wrnexus/pubsub": "0.8.6"
+  }
+}