fix(api): inline profile display name helper to avoid src import in serverless

api/article-og.ts

@@ -4,7 +4,6 @@ import { nip19 } from 'nostr-tools'
 import { AddressPointer } from 'nostr-tools/nip19'
 import { NostrEvent, Filter } from 'nostr-tools'
 import { Helpers } from 'applesauce-core'
-import { extractProfileDisplayName } from '../src/utils/profileUtils'
 
 const { getArticleTitle, getArticleImage, getArticleSummary } = Helpers
 
@@ -29,6 +28,42 @@ type CacheEntry = {
 const WEEK_MS = 7 * 24 * 60 * 60 * 1000
 const memoryCache = new Map<string, CacheEntry>()
 
+// Local fallback utilities to avoid importing from src/** in the serverless function
+function getNpubFallbackDisplay(pubkey: string): string {
+  try {
+    const npub = nip19.npubEncode(pubkey)
+    return `${npub.slice(5, 12)}...`
+  } catch {
+    return `${pubkey.slice(0, 8)}...`
+  }
+}
+
+function extractProfileDisplayName(profileEvent: NostrEvent | null | undefined): string {
+  if (!profileEvent || profileEvent.kind !== 0) {
+    return ''
+  }
+
+  try {
+    const profileData = JSON.parse(profileEvent.content || '{}') as {
+      name?: string
+      display_name?: string
+      nip05?: string
+    }
+
+    if (profileData.name) return profileData.name
+    if (profileData.display_name) return profileData.display_name
+    if (profileData.nip05) return profileData.nip05
+
+    return getNpubFallbackDisplay(profileEvent.pubkey)
+  } catch {
+    try {
+      return getNpubFallbackDisplay(profileEvent.pubkey)
+    } catch {
+      return ''
+    }
+  }
+}
+
 function escapeHtml(text: string): string {
   return text
     .replace(/&/g, '&amp;')