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/internal/db/sqlite_test.go

@@ -193,10 +193,10 @@ func TestHashrateSampleHistory(t *testing.T) {
 	d := openTestDB(t)
 	seedAgent(t, d, "hr-agent")
 
-	if err := d.InsertHashrateSample("hr-agent", 150.5); err != nil {
+	if err := d.InsertHashrateSample("hr-agent", 150.5, 0); err != nil {
 		t.Fatal(err)
 	}
-	if err := d.InsertHashrateSample("hr-agent", 200.0); err != nil {
+	if err := d.InsertHashrateSample("hr-agent", 200.0, 10.0); err != nil {
 		t.Fatal(err)
 	}