rework context

packages/app/src/zappers.ts

@@ -2,18 +2,17 @@ import {writable, derived} from 'svelte/store'
 import {withGetter} from '@welshman/store'
 import {type Zapper} from '@welshman/util'
 import {type SubscribeRequest} from "@welshman/net"
-import {uniq, identity, bech32ToHex, tryCatch, uniqBy, batcher, postJson} from '@welshman/lib'
-import {AppContext} from './core'
+import {ctx, uniq, identity, bech32ToHex, tryCatch, uniqBy, batcher, postJson} from '@welshman/lib'
 import {collection} from './collection'
 import {deriveProfile} from './profiles'
 
 export const zappers = withGetter(writable<Zapper[]>([]))
 
 export const fetchZappers = (lnurls: string[]) => {
-  const base = AppContext.dufflepudUrl!
+  const base = ctx.app.dufflepudUrl!
 
   if (!base) {
-    throw new Error("AppContext.dufflepudUrl is required to fetch zapper info")
+    throw new Error("ctx.app.dufflepudUrl is required to fetch zapper info")
   }
 
   const zappersByLnurl = new Map<string, Zapper>()