fix: dashboard funnel crash, comrade user, Cloudflare tunnel auto-start

Add runtime comrade account, null-safe spread funnel API/UI, server-started
cloudflared connector with Calibrate token field and builtin fallback, and
simplify LAUNCH to delegate tunnel startup to AetherForge.

server/web/src/help/settingHelp.test.ts

@@ -85,6 +85,7 @@ describe('FIELD_HELP', () => {
     'install_custom_base',
     'install_relative_path',
     'public_url',
+    'cloudflare_tunnel_token',
     'https_beacon_fallback',
     'https_beacon_after_min',
     'webhook_url',