feat: Add Global Module Settings and Caption to Images

- Introduced GlobalModuleSettings model for platform-wide module enable/disable settings.
- Added 'caption' field to Images model to store image captions.
- Updated GenerateImagePromptsFunction to handle new caption structure in prompts.
- Enhanced AIPromptViewSet to return global prompt types and validate active prompts.
- Modified serializers and views to accommodate new caption field and global settings.
- Updated frontend components to display captions and filter prompts based on active types.
- Created migrations for GlobalModuleSettings and added caption field to Images.

backend/igny8_core/modules/writer/migrations/0013_add_caption_to_images.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.9 on 2025-12-20 20:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('writer', '0012_soft_delete'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='images',
+            name='caption',
+            field=models.TextField(blank=True, help_text='Image caption (40-60 words) to display with the image', null=True),
+        ),
+    ]

backend/igny8_core/modules/writer/serializers.py

@@ -89,6 +89,7 @@ class ImagesSerializer(serializers.ModelSerializer):
             'image_url',
             'image_path',
             'prompt',
+            'caption',
             'status',
             'position',
             'created_at',
@@ -126,6 +127,7 @@ class ContentImageSerializer(serializers.ModelSerializer):
             'image_url',
             'image_path',
             'prompt',
+            'caption',
             'status',
             'position',
             'created_at',