Update appUrl import path to @because/toes/tools

docs/GUIDE.md

@@ -688,10 +688,10 @@ toes share my-app
 
 Every request to your app includes an `x-app-url` header with the app's public-facing URL. When shared, this is the tunnel URL (e.g., `https://myapp.toes.space`). When not shared, it's the local URL (e.g., `http://myapp.toes.local`). This works whether the request arrives through the local proxy or through a tunnel.
 
-Use `appUrl()` from `@because/toes` to read it — never hardcode your app's URL:
+Use `appUrl()` from `@because/toes/tools` to read it — never hardcode your app's URL:
 
 ```tsx
-import { appUrl } from '@because/toes'
+import { appUrl } from '@because/toes/tools'
 
 app.get('/callback', c => {
   const url = appUrl(c.req.raw)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@because/toes",
-  "version": "0.0.15",
+  "version": "0.0.16",
   "description": "personal web appliance - turn it on and forget about the cloud",
   "module": "src/index.ts",
   "type": "module",

src/index.ts

@@ -1 +1 @@
-export * from './server'
+export * from './tools'