feat: add QR scanner, improve UX, and simplify navigation

- Add live camera QR scanner for nsec/ncryptsec login
- Replace browser prompt() with proper password dialog for ncryptsec
- Add missing /notes/:id route for thread view navigation
- Remove explore section entirely (button, page, routes)
- Remove profile button from bottom nav, avatar now opens profile
- Remove "Notes" tab from feed, default to showing all posts/replies
- Add PasswordPromptProvider for secure password input
- Add SidebarDrawer for mobile navigation
- Add domain layer with value objects and adapters
- Various UI and navigation improvements

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.claude/skills/ndk/examples/01-initialization.ts

@@ -0,0 +1,162 @@
+/**
+ * NDK Initialization Patterns
+ * 
+ * Examples from: src/lib/stores/ndk.ts
+ */
+
+import NDK from '@nostr-dev-kit/ndk'
+
+// ============================================================
+// BASIC INITIALIZATION
+// ============================================================
+
+const basicInit = () => {
+  const ndk = new NDK({
+    explicitRelayUrls: ['wss://relay.damus.io', 'wss://relay.nostr.band']
+  })
+  
+  return ndk
+}
+
+// ============================================================
+// PRODUCTION PATTERN - WITH MULTIPLE NDK INSTANCES
+// ============================================================
+
+const productionInit = (relays: string[], zapRelays: string[]) => {
+  // Main NDK instance for general operations
+  const ndk = new NDK({
+    explicitRelayUrls: relays
+  })
+  
+  // Separate NDK for zap operations (performance optimization)
+  const zapNdk = new NDK({
+    explicitRelayUrls: zapRelays
+  })
+  
+  return { ndk, zapNdk }
+}
+
+// ============================================================
+// CONNECTION WITH TIMEOUT
+// ============================================================
+
+const connectWithTimeout = async (
+  ndk: NDK, 
+  timeoutMs: number = 10000
+): Promise<void> => {
+  // Create connection promise
+  const connectPromise = ndk.connect()
+  
+  // Create timeout promise
+  const timeoutPromise = new Promise<never>((_, reject) =>
+    setTimeout(() => reject(new Error('Connection timeout')), timeoutMs)
+  )
+  
+  try {
+    // Race between connection and timeout
+    await Promise.race([connectPromise, timeoutPromise])
+    console.log('✅ NDK connected successfully')
+  } catch (error) {
+    if (error instanceof Error && error.message === 'Connection timeout') {
+      console.error('❌ Connection timed out after', timeoutMs, 'ms')
+    } else {
+      console.error('❌ Connection failed:', error)
+    }
+    throw error
+  }
+}
+
+// ============================================================
+// FULL INITIALIZATION FLOW
+// ============================================================
+
+interface InitConfig {
+  relays?: string[]
+  zapRelays?: string[]
+  timeoutMs?: number
+}
+
+const defaultRelays = [
+  'wss://relay.damus.io',
+  'wss://relay.nostr.band',
+  'wss://nos.lol'
+]
+
+const defaultZapRelays = [
+  'wss://relay.damus.io',
+  'wss://nostr.wine'
+]
+
+const initializeNDK = async (config: InitConfig = {}) => {
+  const {
+    relays = defaultRelays,
+    zapRelays = defaultZapRelays,
+    timeoutMs = 10000
+  } = config
+  
+  // Initialize instances
+  const ndk = new NDK({ explicitRelayUrls: relays })
+  const zapNdk = new NDK({ explicitRelayUrls: zapRelays })
+  
+  // Connect with timeout protection
+  try {
+    await connectWithTimeout(ndk, timeoutMs)
+    await connectWithTimeout(zapNdk, timeoutMs)
+    
+    return { ndk, zapNdk, isConnected: true }
+  } catch (error) {
+    return { ndk, zapNdk, isConnected: false, error }
+  }
+}
+
+// ============================================================
+// CHECKING CONNECTION STATUS
+// ============================================================
+
+const getConnectionStatus = (ndk: NDK) => {
+  const connectedRelays = Array.from(ndk.pool?.relays.values() || [])
+    .filter(relay => relay.status === 1)
+    .map(relay => relay.url)
+  
+  const isConnected = connectedRelays.length > 0
+  
+  return {
+    isConnected,
+    connectedRelays,
+    totalRelays: ndk.pool?.relays.size || 0
+  }
+}
+
+// ============================================================
+// USAGE EXAMPLE
+// ============================================================
+
+async function main() {
+  // Initialize
+  const { ndk, zapNdk, isConnected } = await initializeNDK({
+    relays: defaultRelays,
+    zapRelays: defaultZapRelays,
+    timeoutMs: 10000
+  })
+  
+  if (!isConnected) {
+    console.error('Failed to connect to relays')
+    return
+  }
+  
+  // Check status
+  const status = getConnectionStatus(ndk)
+  console.log('Connection status:', status)
+  
+  // Ready to use
+  console.log('NDK ready for operations')
+}
+
+export {
+  basicInit,
+  productionInit,
+  connectWithTimeout,
+  initializeNDK,
+  getConnectionStatus
+}
+