chore: remove unused status endpoint and debug logging

- Remove api_get_nostr_status() - frontend calls nostrclient directly
- Remove unused httpx and settings imports
- Remove console.log debug statement

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

static/js/index.js

@@ -219,7 +219,6 @@ window.app = Vue.createApp({
       try {
         const response = await fetch('/nostrclient/api/v1/relays')
         const body = await response.json()
-        console.log('Nostrclient /relays:', response.status, body)
 
         if (response.status === 200) {
           const relaysConnected = body.filter(r => r.connected).length