feat(web5): surface multi-relay publish result on profile save

Pairs with the backend change that broadcasts kind:0 to every
enabled relay. Web5Identities.vue's publishProfile() now reads the
richer response ({accepted, rejected, relays_attempted, published})
and shows one of three states:

- all relays accepted → "Published to all N relays (event_id…)"
- partial → "Published to X/N relays" plus a warning with the first
  relay's rejection reason
- zero → "Published to 0/N relays — check Manage Relays" (error)

User can now tell at a glance whether their profile actually made
it to the wider nostr network or only the local relay.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

neode-ui/src/views/web5/Web5Identities.vue

@@ -555,12 +555,29 @@ async function publishProfile() {
       method: 'identity.update-profile',
       params: { id: profileEditorIdentity.value.id, ...profileForm.value },
     })
-    const res = await rpcClient.call<{ event_id: string }>({
+    const res = await rpcClient.call<{
+      event_id: string
+      accepted: string[]
+      rejected: Array<[string, string]>
+      relays_attempted: number
+      published: boolean
+    }>({
       method: 'identity.publish-profile',
       params: { id: profileEditorIdentity.value.id },
     })
     await loadIdentities()
-    profileSuccess.value = `Published to relay (${res.event_id.slice(0, 12)}...)`
+    const n = res.accepted?.length ?? 0
+    const total = res.relays_attempted ?? 0
+    const tail = `(${res.event_id.slice(0, 12)}…)`
+    if (n === total) {
+      profileSuccess.value = `Published to all ${total} relays ${tail}`
+    } else if (n > 0) {
+      profileSuccess.value = `Published to ${n}/${total} relays ${tail}`
+      const first = res.rejected?.[0]
+      if (first) profileError.value = `Rejected by ${first[0]}: ${first[1]}`
+    } else {
+      profileError.value = `Published to 0/${total} relays — check Manage Relays`
+    }
     setTimeout(() => { profileSuccess.value = '' }, 5000)
   } catch (err: unknown) {
     profileError.value = err instanceof Error ? err.message : 'Failed to publish'