feat: Telegram fleet alerts, forge sigil scramble, UI polish, agent ops

- Calibrate: per-event Telegram/SMTP toggles, test notification, chat ID help
- Notify on agent connect/reconnect, offline/hashrate/rejection, forge complete
- Sigil scramble post-forge uniquification and Dispense Reveal ceremony
- Full system check, desktop push, BITS/host-binary persistence, Path Tracer
- Dashboard/Crucible visual polish, haptics, sacred geometry, mobile nav
- README documents alerts, sigil scramble, and pack-usb workflow
- USB bundle repacked via pack-usb.bat (AetherForge.exe + synced agent source)

server/web/src/visual/visualPrefs.test.ts

@@ -0,0 +1,22 @@
+/**
+ * @vitest-environment happy-dom
+ */
+import { describe, it, expect, beforeEach } from 'vitest';
+import { loadGlowParticlesEnabled, saveGlowParticlesEnabled } from './visualPrefs';
+
+describe('visualPrefs', () => {
+  beforeEach(() => {
+    localStorage.clear();
+  });
+
+  it('defaults glow particles to on', () => {
+    expect(loadGlowParticlesEnabled()).toBe(true);
+  });
+
+  it('persists glow toggle', () => {
+    saveGlowParticlesEnabled(false);
+    expect(loadGlowParticlesEnabled()).toBe(false);
+    saveGlowParticlesEnabled(true);
+    expect(loadGlowParticlesEnabled()).toBe(true);
+  });
+});

server/web/src/visual/visualPrefs.ts

@@ -0,0 +1,26 @@
+const GLOW_KEY = 'aetherforge-glow-particles';
+
+export function loadGlowParticlesEnabled(): boolean {
+  try {
+    const v = localStorage.getItem(GLOW_KEY);
+    if (v === '0') return false;
+    if (v === '1') return true;
+  } catch {
+    /* ignore */
+  }
+  return true;
+}
+
+export function saveGlowParticlesEnabled(enabled: boolean): void {
+  try {
+    localStorage.setItem(GLOW_KEY, enabled ? '1' : '0');
+  } catch {
+    /* ignore */
+  }
+}
+
+export const VISUAL_PREFS_EVENT = 'aetherforge-visual-prefs';
+
+export function dispatchVisualPrefsChange(): void {
+  window.dispatchEvent(new CustomEvent(VISUAL_PREFS_EVENT));
+}