fix: query all 3 Nostr relays in parallel, pick latest profile (BUG-F8)

fetchNostrProfile now uses Promise.allSettled to query all relays
concurrently. Aggregates results with latest-created_at-wins strategy
instead of stopping at the first relay that responds.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/composables/useNostr.ts

@@ -581,26 +581,33 @@ async function fetchNostrProfilePic(pk: string): Promise<string | null> {
   return profile?.picture || null
 }
 
-/** Fetch full Nostr profile (kind:0 metadata) with caching */
+/** Fetch full Nostr profile (kind:0 metadata) with caching.
+ *  Queries all relays in parallel, picks result with latest created_at. */
 async function fetchNostrProfile(pk: string): Promise<NostrProfile | null> {
   const cached = profileCache.get(pk)
   if (cached && Date.now() - cached.ts < PROFILE_TTL) return cached.data
 
-  for (const relay of RELAYS) {
+  const results = await Promise.allSettled(
-    try {
+    RELAYS.map(relay => queryRelayProfile(relay, pk))
-      const profile = await queryRelayProfile(relay, pk)
+  )
-      if (profile) {
+
-        profileCache.set(pk, { data: profile, ts: Date.now() })
+  // Pick the profile with the latest created_at (newest wins)
-        return profile
+  let best: { profile: NostrProfile; createdAt: number } | null = null
-      }
+  for (const r of results) {
-    } catch {
+    if (r.status !== 'fulfilled' || !r.value) continue
-      continue
+    if (!best || r.value.createdAt > best.createdAt) {
+      best = r.value
     }
   }
+
+  if (best) {
+    profileCache.set(pk, { data: best.profile, ts: Date.now() })
+    return best.profile
+  }
   return null
 }
 
-function queryRelayProfile(url: string, pk: string): Promise<NostrProfile | null> {
+function queryRelayProfile(url: string, pk: string): Promise<{ profile: NostrProfile; createdAt: number } | null> {
   return new Promise((resolve) => {
     let timedOut = false
     const timeout = setTimeout(() => {
@@ -625,11 +632,14 @@ function queryRelayProfile(url: string, pk: string): Promise<NostrProfile | null
           clearTimeout(timeout)
           ws.close()
           resolve({
-            displayName: meta.display_name || meta.name || null,
+            profile: {
-            about: meta.about || null,
+              displayName: meta.display_name || meta.name || null,
-            picture: meta.picture || null,
+              about: meta.about || null,
-            banner: meta.banner || null,
+              picture: meta.picture || null,
-            nip05: meta.nip05 || null,
+              banner: meta.banner || null,
+              nip05: meta.nip05 || null,
+            },
+            createdAt: data[2].created_at || 0,
           })
         } else if (data[0] === 'EOSE') {
           clearTimeout(timeout)