Cleanups and making distinction between pro and enterprise (#3250)

# Description of Changes

Please provide a summary of the changes, including:

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

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/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/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] 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/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)

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

---------

Co-authored-by: a <a>

src/main/java/stirling/software/SPDF/service/PdfMetadataService.java

@@ -17,18 +17,18 @@ public class PdfMetadataService {
     private final ApplicationProperties applicationProperties;
     private final String stirlingPDFLabel;
     private final UserServiceInterface userService;
-    private final boolean runningEE;
+    private final boolean runningProOrHigher;
 
     @Autowired
     public PdfMetadataService(
             ApplicationProperties applicationProperties,
             @Qualifier("StirlingPDFLabel") String stirlingPDFLabel,
-            @Qualifier("runningEE") boolean runningEE,
+            @Qualifier("runningProOrHigher") boolean runningProOrHigher,
             @Autowired(required = false) UserServiceInterface userService) {
         this.applicationProperties = applicationProperties;
         this.stirlingPDFLabel = stirlingPDFLabel;
         this.userService = userService;
-        this.runningEE = runningEE;
+        this.runningProOrHigher = runningProOrHigher;
     }
 
     public PdfMetadata extractMetadataFromPdf(PDDocument pdf) {
@@ -69,7 +69,7 @@ public class PdfMetadataService {
                         .getProFeatures()
                         .getCustomMetadata()
                         .isAutoUpdateMetadata()
-                && runningEE) {
+                && runningProOrHigher) {
 
             creator =
                     applicationProperties
@@ -98,7 +98,7 @@ public class PdfMetadataService {
                         .getProFeatures()
                         .getCustomMetadata()
                         .isAutoUpdateMetadata()
-                && runningEE) {
+                && runningProOrHigher) {
             author =
                     applicationProperties
                             .getPremium()