Allow heading tags (h1-h6) in ContentSanitizer so news editor headings render

resources/js/components/upload/UploadWizard.jsx

@@ -28,6 +28,7 @@ import {
   getContentTypeValue,
   getProcessingTransparencyLabel,
 } from '../../lib/uploadUtils'
+import { validateMarkdownLiteContent } from '../../utils/contentValidation'
 
 // ─── Wizard step config ───────────────────────────────────────────────────────
 const wizardSteps = [
@@ -335,6 +336,15 @@ export default function UploadWizard({
     if (metadata.rootCategoryId && requiresSubCategory && !metadata.subCategoryId) {
       errors.category = 'Subcategory is required for the selected category.'
     }
+    if (!Array.isArray(metadata.tags) || metadata.tags.length === 0) errors.tags = 'Add at least one tag.'
+    if (!String(metadata.description || '').trim()) {
+      errors.description = 'Description is required.'
+    } else {
+      const descriptionErrors = validateMarkdownLiteContent(metadata.description)
+      if (descriptionErrors.length > 0) {
+        errors.description = descriptionErrors[0]
+      }
+    }
     if (!metadata.rightsAccepted) errors.rights = 'Rights confirmation is required.'
     return errors
   }, [metadata, requiresSubCategory])
@@ -381,9 +391,11 @@ export default function UploadWizard({
     hasCompleteCategory &&
     hasTag &&
     hasRequiredScreenshot &&
+    String(metadata.description || '').trim() &&
+    !metadataErrors.description &&
     metadata.rightsAccepted &&
     machine.state !== machineStates.publishing
-  ), [uploadReady, hasTitle, hasCompleteCategory, hasTag, hasRequiredScreenshot, metadata.rightsAccepted, machine.state])
+  ), [uploadReady, hasTitle, hasCompleteCategory, hasTag, hasRequiredScreenshot, metadata.description, metadata.rightsAccepted, metadataErrors.description, machine.state])
 
   const canScheduleSubmit = useMemo(() => {
     if (!canPublish) return false