fix: add missing @transactional to softDeleteOldMappings

InvalidDataAccessApiUsageException: "Executing an update/delete query"
- a @Modifying UPDATE query with no surrounding transaction. Pre-existing
bug in shared code (updateUserRoleMapping, used by every service line),
dormant until now: Stop TB's Edit form was always invalid before today's
fixes (Update button permanently disabled), so nothing ever reached this
code path through Stop TB specifically. Same pattern the other
@Modifying query in this file already follows correctly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: vishwab1

src/main/java/com/iemr/admin/repo/employeemaster/EmployeeMasterRepo.java

@@ -156,6 +156,7 @@ boolean existsByUserIDAndRoleIDAndProviderServiceMapIDAndFacilityIDAndDeletedFal
 	long countByUserIDAndRoleIDAndDeletedFalse(Integer userID, Integer roleID);
 
 	// Soft-delete old duplicate mappings for same user+service, excluding the current row being updated
+	@Transactional
 	@Modifying
 	@Query("UPDATE M_UserServiceRoleMapping2 u SET u.deleted = true WHERE u.userID = :userID AND u.providerServiceMapID = :providerServiceMapID AND u.uSRMappingID != :excludeUSRMappingID AND u.deleted = false")
 	int softDeleteOldMappings(@Param("userID") Integer userID, @Param("providerServiceMapID") Integer providerServiceMapID, @Param("excludeUSRMappingID") Integer excludeUSRMappingID);