feat: Add Lombok @Getter and @Setter annotations to reduce boilerplate code in multiple classes (#4321)

# Description of Changes

Update classes across the codebase to use Lombok's `@Getter` and
`@Setter` annotations, replacing manually written getter and setter
methods. This change streamlines the code, reduces boilerplate, and
improves maintainability.

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- What was changed
- Why the change was made
- Any challenges encountered

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---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

---------

Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

app/proprietary/src/main/java/stirling/software/proprietary/audit/AuditEventType.java

@@ -1,6 +1,9 @@
 package stirling.software.proprietary.audit;
 
+import lombok.Getter;
+
 /** Standardized audit event types for the application. */
+@Getter
 public enum AuditEventType {
     // Authentication events - BASIC level
     USER_LOGIN("User login"),
@@ -28,10 +31,6 @@ public enum AuditEventType {
         this.description = description;
     }
 
-    public String getDescription() {
-        return description;
-    }
-
     /**
      * Get the enum value from a string representation. Useful for backward compatibility with
      * string-based event types.

app/proprietary/src/main/java/stirling/software/proprietary/audit/AuditLevel.java

@@ -1,6 +1,9 @@
 package stirling.software.proprietary.audit;
 
+import lombok.Getter;
+
 /** Defines the different levels of audit logging available in the application. */
+@Getter
 public enum AuditLevel {
     /**
      * OFF - No audit logging (level 0) Disables all audit logging except for critical security
@@ -33,10 +36,6 @@ public enum AuditLevel {
         this.level = level;
     }
 
-    public int getLevel() {
-        return level;
-    }
-
     /**
      * Checks if this audit level includes the specified level
      *

app/proprietary/src/main/java/stirling/software/proprietary/security/model/AttemptCounter.java

@@ -1,5 +1,8 @@
 package stirling.software.proprietary.security.model;
 
+import lombok.Getter;
+
+@Getter
 public class AttemptCounter {
     private int attemptCount;
     private long lastAttemptTime;
@@ -14,14 +17,6 @@ public class AttemptCounter {
         this.lastAttemptTime = System.currentTimeMillis();
     }
 
-    public int getAttemptCount() {
-        return attemptCount;
-    }
-
-    public long getLastAttemptTime() {
-        return lastAttemptTime;
-    }
-
     public boolean shouldReset(long attemptIncrementTime) {
         return System.currentTimeMillis() - lastAttemptTime > attemptIncrementTime;
     }