Release validation: tests green, USB pack, fleet UX and API hardening.

Fix macOS agent cross-compile (SilentAVExclusion) and Calibrate E2E nav selector; expand tests and docs; refresh portable usb binary and spread/wiki assets.

server/web/src/test/fixtures.ts

@@ -91,6 +91,8 @@ export const mockServerInfo: ServerInfo = {
   port: 8080,
   host: '0.0.0.0',
   local_ips: ['192.168.1.5'],
+  lan_url: 'http://192.168.1.5:8080',
+  cloudflared_configured: false,
   suggested_url: 'http://192.168.1.5:8080',
   dashboard_url: 'http://192.168.1.5:8080/dashboard',
   websocket_url: 'ws://192.168.1.5:8080/ws/dashboard',