feat: Portal, Email Inbound, Discuss + module improvements

- Portal: /my/* routes, signup, password reset, portal user support
- Email Inbound: IMAP polling (go-imap/v2), thread matching
- Discuss: mail.channel, long-polling bus, DM, unread count
- Cron: ir.cron runner (goroutine scheduler)
- Bank Import, CSV/Excel Import
- Automation (ir.actions.server)
- Fetchmail service
- HR Payroll model
- Various fixes across account, sale, stock, purchase, crm, hr, project

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

addons/hr/models/hr_attendance.go

@@ -21,10 +21,12 @@ func initHrAttendance() {
 		env := rs.Env()
 		attID := rs.IDs()[0]
 		var hours float64
-		env.Tx().QueryRow(env.Ctx(),
-			`SELECT COALESCE(EXTRACT(EPOCH FROM (check_out - check_in)) / 3600.0, 0)
-             FROM hr_attendance WHERE id = $1 AND check_out IS NOT NULL`, attID,
-		).Scan(&hours)
+		if err := env.Tx().QueryRow(env.Ctx(),
+			`SELECT COALESCE(EXTRACT(EPOCH FROM (COALESCE(check_out, NOW()) - check_in)) / 3600.0, 0)
+			 FROM hr_attendance WHERE id = $1`, attID,
+		).Scan(&hours); err != nil {
+			return orm.Values{"worked_hours": float64(0)}, nil
+		}
 		return orm.Values{"worked_hours": hours}, nil
 	})
 }