- Add bulk-assign-topics endpoint to AdminHadisViewSet supporting add/replace modes
- Validate leaf topic constraints and handle both M2M categories and primary category_id
- Invalidate hadis cache on bulk updates and return updated count with category details
- Expand AdminHadisBriefSerializer with slug, title_narrator, and status fields
- Add GenderChoices (male/female) field to Transmitters model with migration 0052
- Include gender across public and admin transmitter serializers
- Expose gender in TransmittersAdmin filter and list display
- Propagate transmitter gender in HadisCategoryXMindView flowchart payload
- Add split_transmitters_gender management command
- Add is_topic boolean field to HadisCategory model with indexing
- Enforce validation rules in clean():
* Topics cannot have children and must define a source_type
* Structural categories cannot contain hadiths and have source_type=None
* Parents cannot be topics
* Hadiths can only be attached to topics (is_topic=True)
- Update admin serializers and views to support is_topic filtering and mapping
- Expose is_topic in public category serializers (SimpleCategory, HadisCategorySelectSerializer, CategorySerializer)
- Include migration 0051_add_category_is_topic
- Refactor QuranSecondaryTranslation to store language_code, translation_text and translator per record
- Add migrations 0042 and 0043 to migrate existing secondary translations
- Update AdminCategoryQuranVerseSerializer and AdminHadisCategorySerializer with proper secondary translations handling
- Support category filtering by source_type, has_quran_verse and exclude_verse_id in admin category viewset
- Create reusable watermark utility in utils/watermark.py supporting PIL, UploadedFile, bytes, and DRF serializer fields
- Default position set to bottom-left with responsive 32% width scaling and alpha blending
- Auto-resolve SVG watermark to high-resolution PNG
- Integrate automatic watermarking into Article thumbnails, Hadith/Book Reference images, Corrections, Original Texts, and Interpretations
Replace direct calls to `request.build_absolute_uri` with a centralized
`absolute_https_url` utility across account and hadis modules. This
ensures consistent enforcement of HTTPS for all absolute media URLs
(avatars, thumbnails, and images) in serializers and views.rl
