fix tool disabling for docs and others (#5722)

# Description of Changes

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Please provide a summary of the changes, including:

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

Closes #(issue_number)
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---

## 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/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)
- [ ] 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/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### 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/devGuide/DeveloperGuide.md#6-testing)
for more details.

frontend/src/core/services/preferencesService.ts

@@ -38,6 +38,12 @@ export const DEFAULT_PREFERENCES: UserPreferences = {
 const STORAGE_KEY = 'stirlingpdf_preferences';
 
 class PreferencesService {
+  private serverDefaults: Partial<UserPreferences> = {};
+
+  setServerDefaults(defaults: Partial<UserPreferences>): void {
+    this.serverDefaults = defaults;
+  }
+
   getPreference<K extends keyof UserPreferences>(
     key: K
   ): UserPreferences[K] {
@@ -53,6 +59,10 @@ class PreferencesService {
     } catch (error) {
       console.error('Error reading preference:', key, error);
     }
+    // Use server defaults if available, otherwise use hardcoded defaults
+    if (key in this.serverDefaults && this.serverDefaults[key] !== undefined) {
+      return this.serverDefaults[key]!;
+    }
     return DEFAULT_PREFERENCES[key];
   }
 
@@ -75,16 +85,18 @@ class PreferencesService {
       const stored = localStorage.getItem(STORAGE_KEY);
       if (stored) {
         const preferences = JSON.parse(stored) as Partial<UserPreferences>;
-        // Merge with defaults to ensure all preferences exist
+        // Merge with server defaults first, then stored preferences
         return {
           ...DEFAULT_PREFERENCES,
+          ...this.serverDefaults,
           ...preferences,
         };
       }
     } catch (error) {
       console.error('Error reading preferences', error);
     }
-    return { ...DEFAULT_PREFERENCES };
+    // Merge server defaults with hardcoded defaults
+    return { ...DEFAULT_PREFERENCES, ...this.serverDefaults };
   }
 
   clearAllPreferences(): void {