feat: Implement push notification system for admin announcements

- Add a notification manager to handle push notifications and integrate with Nostr events.
- Create a push notification service to manage subscription and permission requests.
- Introduce components for notification settings and permission prompts in the UI.
- Update Nostr store to manage push notification state and enable/disable functionality.
- Enhance NostrFeed to send notifications for new admin announcements.
- Implement test notification functionality for development purposes.

debug_admin_posts.js

@@ -0,0 +1,94 @@
+#!/usr/bin/env node
+
+// Debug what admin posts exist in the relay
+import { SimplePool } from 'nostr-tools'
+
+const RELAY_URL = "ws://127.0.0.1:5001/nostrrelay/mainhub"
+const ADMIN_PUBKEYS = [
+  "4b9d7688eba64565dcb77cc8ab157eca1964d5de9f7afabe03eb5b54a43d9882",
+  "30b1ab3683fa6cc0e3695849ee1ec29e9fbae4c9e7ddb7452a4ddb37a0660040", 
+  "c116dbc73a8ccd0046a2ecf96c0b0531d3eda650d449798ac5b86ff6e301debe"
+]
+
+async function debugAdminPosts() {
+  const pool = new SimplePool()
+  
+  console.log('🔍 Checking relay for admin posts...')
+  console.log('Relay:', RELAY_URL)
+  console.log('Admin pubkeys:', ADMIN_PUBKEYS.length)
+  console.log('')
+  
+  try {
+    // Check each admin individually
+    for (let i = 0; i < ADMIN_PUBKEYS.length; i++) {
+      const pubkey = ADMIN_PUBKEYS[i]
+      console.log(`👤 Admin ${i + 1}: ${pubkey.slice(0, 16)}...`)
+      
+      const individualFilter = {
+        kinds: [1],
+        authors: [pubkey],
+        limit: 10
+      }
+      
+      const events = []
+      const sub = pool.subscribeMany([RELAY_URL], [individualFilter], {
+        onevent(event) {
+          events.push(event)
+        },
+        oneose() {
+          console.log(`   Found ${events.length} posts`)
+          events.forEach((event, idx) => {
+            console.log(`   ${idx + 1}. "${event.content.slice(0, 60)}${event.content.length > 60 ? '...' : ''}"`)
+            console.log(`      Created: ${new Date(event.created_at * 1000).toLocaleString()}`)
+          })
+          console.log('')
+        }
+      })
+      
+      // Wait for events
+      await new Promise(resolve => setTimeout(resolve, 1000))
+      sub.close()
+    }
+    
+    // Now test the combined filter (what the app uses)
+    console.log('🔄 Testing combined filter (what the app uses)...')
+    const combinedFilter = {
+      kinds: [1],
+      authors: ADMIN_PUBKEYS,
+      limit: 50
+    }
+    
+    const allEvents = []
+    const combinedSub = pool.subscribeMany([RELAY_URL], [combinedFilter], {
+      onevent(event) {
+        allEvents.push(event)
+      },
+      oneose() {
+        console.log(`📊 Combined filter result: ${allEvents.length} total posts`)
+        
+        // Group by author
+        const byAuthor = {}
+        allEvents.forEach(event => {
+          const shortPubkey = event.pubkey.slice(0, 16) + '...'
+          if (!byAuthor[shortPubkey]) byAuthor[shortPubkey] = 0
+          byAuthor[shortPubkey]++
+        })
+        
+        console.log('Posts by author:')
+        Object.entries(byAuthor).forEach(([author, count]) => {
+          console.log(`  ${author}: ${count} posts`)
+        })
+      }
+    })
+    
+    await new Promise(resolve => setTimeout(resolve, 1000))
+    combinedSub.close()
+    
+  } catch (error) {
+    console.error('❌ Error:', error)
+  } finally {
+    pool.close([RELAY_URL])
+  }
+}
+
+debugAdminPosts()