- category content is the blogeditor type (uploadFolder categories): it is
stripped and reported like post content; the 422 CheckHTML gate is
retired and blank content still becomes NULL
- blogeditor and mlblogeditor Upload: magic-byte check for JPEG, PNG, GIF
and WebP matching the extension, safe lowercase names, storage through
classes.StoreMedia in the field's uploadFolder
- TestBlogEditorUploadSmoke, TestCategoriesAdminContent asserts the strip,
README describes the field types, admin saves and editor uploads
- add a content textarea (size huge) after description, with en and pl phrases
- add content to Category.Fillable
- export classes.CheckHTML and run it from FormBeforeCreate and FormBeforeUpdate:
unsafe category content answers 422 on content, blank content is stored as NULL
- add the nullable TEXT column golem15_journal_categories.content (migration 202610090001)
- map it as models.Category.Content and emit category content on every categories row
- document the categories row shape and the stored-as-is HTML semantics
