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/lib/nostr/client.ts

@@ -61,7 +61,7 @@ export class NostrClient {
   } = {}): Promise<NostrNote[]> {
     const { 
       limit = 20, 
-      since = Math.floor((Date.now() - 24 * 60 * 60 * 1000) / 1000),
+      since = Math.floor((Date.now() - 7 * 24 * 60 * 60 * 1000) / 1000), // Last 7 days
       authors,
       includeReplies = false
     } = options
@@ -69,45 +69,25 @@ export class NostrClient {
     const filters: Filter[] = [
       {
         kinds: [EventKinds.TEXT_NOTE],
-        since,
         limit,
         ...(authors && { authors })
       }
     ]
 
-    // Also fetch reactions and replies for engagement data
-    const engagementFilters: Filter[] = [
-      {
-        kinds: [EventKinds.REACTION, EventKinds.TEXT_NOTE],
-        since,
-        limit: limit * 5 // Get more for engagement calculation
-      }
-    ]
-
     try {
-      // Get events from all relays
-      const [noteEvents, engagementEvents] = await Promise.all([
-        Promise.all(
-          this.relays.map(async (relay) => {
-            try {
-              return await this.pool.querySync([relay], filters)
-            } catch (error) {
-              console.warn(`Failed to fetch notes from relay ${relay}:`, error)
-              return []
-            }
-          })
-        ),
-        Promise.all(
-          this.relays.map(async (relay) => {
-            try {
-              return await this.pool.querySync([relay], engagementFilters)
-            } catch (error) {
-              console.warn(`Failed to fetch engagement from relay ${relay}:`, error)
-              return []
-            }
-          })
-        )
-      ])
+      // Get events from all relays using the working get() method
+      const noteEvents = await Promise.all(
+        this.relays.map(async (relay) => {
+          try {
+            const filter = filters[0]
+            const singleEvent = await this.pool.get([relay], filter)
+            return singleEvent ? [singleEvent] : []
+          } catch (error) {
+            console.warn(`Failed to fetch notes from relay ${relay}:`, error)
+            return []
+          }
+        })
+      )
 
       // Flatten and deduplicate events by ID
       const uniqueNotes = Array.from(
@@ -116,24 +96,16 @@ export class NostrClient {
         ).values()
       )
 
-      const allEngagementEvents = engagementEvents.flat()
-      
-      // Extract engagement data
-      const reactions = extractReactions(allEngagementEvents)
-      const replyCounts = extractReplyCounts(allEngagementEvents)
-
-      // Process notes with engagement data
+      // Process notes with basic info (engagement data disabled for now)
       let processedNotes = uniqueNotes
         .map((event: Event): NostrNote => {
           const replyInfo = getReplyInfo(event)
-          const eventReactions = reactions.get(event.id) || {}
-          const reactionCount = Object.values(eventReactions).reduce((sum, count) => sum + count, 0)
 
           return {
             ...event,
-            replyCount: replyCounts.get(event.id) || 0,
-            reactionCount,
-            reactions: eventReactions,
+            replyCount: 0,
+            reactionCount: 0,
+            reactions: {},
             isReply: replyInfo.isReply,
             replyTo: replyInfo.replyTo,
             mentions: replyInfo.mentions