feat: schoolName field, 입사일 label, password reset for admin

backend/src/main/java/com/srsystem/entity/Employee.java

@@ -74,6 +74,9 @@ public class Employee extends BaseEntity {
     @Column(name = "major", length = 100)
     private String major;
 
+    @Column(name = "school_name", length = 200)
+    private String schoolName;
+
     @Column(name = "graduation_date")
     private LocalDate graduationDate;