revert: back to manual NIP-78 event creation

- AppDataBlueprint is not available in npm package (only in local workspace)
- Revert to manual event construction using factory.create()
- This approach works on Vercel's build environment
- Added comment explaining why we can't use the blueprint

src/services/settingsService.ts

@@ -3,7 +3,6 @@ import { EventFactory } from 'applesauce-factory'
 import { RelayPool, onlyEvents } from 'applesauce-relay'
 import { NostrEvent } from 'nostr-tools'
 import { firstValueFrom } from 'rxjs'
-import * as Blueprints from 'applesauce-factory/blueprints'
 
 const SETTINGS_IDENTIFIER = 'com.dergigi.boris.user-settings'
 const APP_DATA_KIND = 30078 // NIP-78 Application Data
@@ -137,13 +136,14 @@ export async function saveSettings(
 ): Promise<void> {
   console.log('💾 Saving settings to nostr:', settings)
   
-  // Create NIP-78 application data event using the AppDataBlueprint
-  const draft = await factory.create(
-    Blueprints.AppDataBlueprint,
-    SETTINGS_IDENTIFIER,
-    settings,
-    false // no encryption
-  )
+  // Create NIP-78 application data event manually
+  // Note: AppDataBlueprint is not available in the npm package
+  const draft = await factory.create(async () => ({
+    kind: APP_DATA_KIND,
+    content: JSON.stringify(settings),
+    tags: [['d', SETTINGS_IDENTIFIER]],
+    created_at: Math.floor(Date.now() / 1000)
+  }))
   
   const signed = await factory.sign(draft)