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/components/Visual/sacredGeometry/SacredPageHeader.tsx

@@ -0,0 +1,20 @@
+import type { ReactNode } from 'react';
+import { SacredMotif } from './motifs';
+
+/** Optional sacred divider + motif beside page titles */
+export default function SacredPageHeader({
+  children,
+  className = '',
+}: {
+  children: ReactNode;
+  className?: string;
+}) {
+  return (
+    <header className={`page-header page-header--sacred ${className}`.trim()}>
+      {children}
+      <div className="page-header-sacred-motif" aria-hidden>
+        <SacredMotif name="hex" opacity={0.55} />
+      </div>
+    </header>
+  );
+}