feat: Add scripts for sending admin and test notes via Nostr

- Introduce `send_admin_note.js` for sending community announcements to Nostr relays.
- Implement `send_test_note.js` for testing note sending with specified private key and relay URL.
- Enhance `NostrFeed.vue` to filter notes based on admin pubkeys and display appropriate titles and descriptions for different feed types.
- Update `Home.vue` to use the announcements feed type for the Nostr feed component.

src/components/nostr/NostrFeed.vue

@@ -4,10 +4,13 @@ import { NostrClient, type NostrNote } from '@/lib/nostr/client'
 import { useNostr } from '@/composables/useNostr'
 import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from '@/components/ui/card'
 import { ScrollArea } from '@/components/ui/scroll-area'
+import { Badge } from '@/components/ui/badge'
 import { formatDistanceToNow } from 'date-fns'
+import { Megaphone } from 'lucide-vue-next'
 
 const props = defineProps<{
   relays?: string[]
+  feedType?: 'all' | 'announcements' | 'events' | 'general'
 }>()
 
 const notes = ref<NostrNote[]>([])
@@ -17,13 +20,50 @@ const error = ref<Error | null>(null)
 const relayUrls = props.relays || JSON.parse(import.meta.env.VITE_NOSTR_RELAYS as string)
 const { disconnect } = useNostr({ relays: relayUrls })
 
+// Get admin/moderator pubkeys from environment
+// These should be hex pubkeys of trusted moderators/admins
+const adminPubkeys = import.meta.env.VITE_ADMIN_PUBKEYS 
+  ? JSON.parse(import.meta.env.VITE_ADMIN_PUBKEYS as string) 
+  : []
+
 async function loadNotes() {
   try {
     isLoading.value = true
     error.value = null
+    
     const client = new NostrClient({ relays: relayUrls })
     await client.connect()
-    notes.value = await client.fetchNotes({ limit: 50 })
+    
+    // Configure fetch options based on feed type
+    const fetchOptions: Parameters<typeof client.fetchNotes>[0] = {
+      limit: 50,
+      includeReplies: false
+    }
+    
+    // Filter by authors based on feed type
+    if (props.feedType === 'announcements') {
+      // Only show notes from admin/moderator pubkeys
+      if (adminPubkeys.length > 0) {
+        fetchOptions.authors = adminPubkeys
+      } else {
+        // If no admin pubkeys configured, show placeholder
+        notes.value = []
+        return
+      }
+    } else if (props.feedType === 'general') {
+      // Show notes from everyone EXCEPT admins (if configured)
+      // Note: This would require client-side filtering after fetch
+      // For now, we'll fetch all and filter
+    }
+    // 'all' and 'events' types get all notes (no author filter)
+    
+    notes.value = await client.fetchNotes(fetchOptions)
+    
+    // Client-side filtering for 'general' feed (exclude admin posts)
+    if (props.feedType === 'general' && adminPubkeys.length > 0) {
+      notes.value = notes.value.filter(note => !adminPubkeys.includes(note.pubkey))
+    }
+    
   } catch (err) {
     error.value = err instanceof Error ? err : new Error('Failed to load notes')
   } finally {
@@ -31,6 +71,36 @@ async function loadNotes() {
   }
 }
 
+function isAdminPost(pubkey: string): boolean {
+  return adminPubkeys.includes(pubkey)
+}
+
+function getFeedTitle(): string {
+  switch (props.feedType) {
+    case 'announcements':
+      return 'Community Announcements'
+    case 'events':
+      return 'Events & Calendar'
+    case 'general':
+      return 'General Discussion'
+    default:
+      return 'Community Feed'
+  }
+}
+
+function getFeedDescription(): string {
+  switch (props.feedType) {
+    case 'announcements':
+      return 'Important announcements from community administrators'
+    case 'events':
+      return 'Upcoming events and calendar updates'
+    case 'general':
+      return 'Community discussions and general posts'
+    default:
+      return 'Latest posts from the community'
+  }
+}
+
 onMounted(async () => {
   await loadNotes()
 })
@@ -48,8 +118,11 @@ function formatDate(timestamp: number): string {
   <div class="w-full max-w-3xl mx-auto p-4">
     <Card class="w-full">
       <CardHeader>
-        <CardTitle>Nostr Feed</CardTitle>
-        <CardDescription>Latest notes from the nostr network</CardDescription>
+        <CardTitle class="flex items-center gap-2">
+          <Megaphone v-if="feedType === 'announcements'" class="h-5 w-5" />
+          {{ getFeedTitle() }}
+        </CardTitle>
+        <CardDescription>{{ getFeedDescription() }}</CardDescription>
       </CardHeader>
       <CardContent>
         <ScrollArea class="h-[600px] w-full pr-4">
@@ -62,17 +135,40 @@ function formatDate(timestamp: number): string {
           </div>
           
           <div v-else-if="notes.length === 0" class="text-center py-8 text-muted-foreground">
-            No notes found
+            <div v-if="feedType === 'announcements' && adminPubkeys.length === 0" class="space-y-2">
+              <p>No admin pubkeys configured</p>
+              <p class="text-xs">Set VITE_ADMIN_PUBKEYS environment variable</p>
+            </div>
+            <p v-else>No {{ feedType || 'notes' }} found</p>
           </div>
           
           <div v-else class="space-y-4">
-            <Card v-for="note in notes" :key="note.id" class="p-4">
+            <Card 
+              v-for="note in notes" 
+              :key="note.id" 
+              :class="[
+                'p-4 transition-all',
+                isAdminPost(note.pubkey) && feedType !== 'announcements' 
+                  ? 'border-orange-200 bg-orange-50 dark:border-orange-800 dark:bg-orange-950' 
+                  : ''
+              ]"
+            >
               <div class="flex flex-col gap-2">
                 <div class="flex items-center justify-between">
-                  <span class="font-medium text-sm">{{ note.pubkey.slice(0, 8) }}...</span>
+                  <div class="flex items-center gap-2">
+                    <span class="font-medium text-sm">{{ note.pubkey.slice(0, 8) }}...</span>
+                    <Badge 
+                      v-if="isAdminPost(note.pubkey)" 
+                      variant="secondary" 
+                      class="text-xs bg-orange-100 text-orange-800 dark:bg-orange-900 dark:text-orange-200"
+                    >
+                      <Megaphone class="h-3 w-3 mr-1" />
+                      Admin
+                    </Badge>
+                  </div>
                   <span class="text-xs text-muted-foreground">{{ formatDate(note.created_at) }}</span>
                 </div>
-                <p class="text-sm">{{ note.content }}</p>
+                <p class="text-sm whitespace-pre-wrap">{{ note.content }}</p>
                 <div class="flex items-center gap-4 text-xs text-muted-foreground">
                   <span>{{ note.replyCount }} replies</span>
                   <span>{{ note.reactionCount }} reactions</span>
@@ -90,6 +186,9 @@ function formatDate(timestamp: number): string {
         >
           Refresh
         </button>
+        <span v-if="adminPubkeys.length > 0" class="text-xs text-muted-foreground">
+          {{ adminPubkeys.length }} admin(s) configured
+        </span>
       </CardFooter>
     </Card>
   </div>