feat: forum rich-text editor, emoji picker, mentions, discover nav, feed, uploads, profile

Forum:
- TipTap WYSIWYG editor with full toolbar
- @emoji-mart/react emoji picker (consistent with tweets)
- @mention autocomplete with user search API
- Fix PHP 8.4 parse errors in Blade templates
- Fix thread data display (paginator items)
- Align forum page widths to max-w-5xl

Discover:
- Extract shared _nav.blade.php partial
- Add missing nav links to for-you page
- Add Following link for authenticated users

Feed/Posts:
- Post model, controllers, policies, migrations
- Feed page components (PostComposer, FeedCard, etc)
- Post reactions, comments, saves, reports, sharing
- Scheduled publishing support
- Link preview controller

Profile:
- Profile page components (ProfileHero, ProfileTabs)
- Profile API controller

Uploads:
- Upload wizard enhancements
- Scheduled publish picker
- Studio status bar and readiness checklist

resources/js/components/upload/steps/Step3Publish.jsx

@@ -24,7 +24,11 @@ function PublishCheckBadge({ label, ok }) {
  * Step3Publish
  *
  * Step 3 of the upload wizard: review summary and publish action.
- * Shows a compact artwork preview, metadata summary, and readiness badges.
+ * Shows a compact artwork preview, metadata summary, readiness badges,
+ * and a summary of publish mode / schedule + visibility.
+ *
+ * Publish controls (mode/schedule picker) live in PublishPanel (sidebar).
+ * This step serves as the final review before the user clicks Publish.
  */
 export default function Step3Publish({
   headingRef,
@@ -39,17 +43,36 @@ export default function Step3Publish({
   // Readiness
   canPublish,
   uploadReady,
+  // Publish options (from wizard state, for summary display only)
+  publishMode = 'now',
+  scheduledAt = null,
+  timezone = null,
+  visibility = 'public',
+  // Category tree (for label lookup)
+  allRootCategoryOptions = [],
+  filteredCategoryTree = [],
 }) {
   const prefersReducedMotion = useReducedMotion()
   const quickTransition = prefersReducedMotion ? { duration: 0 } : { duration: 0.2, ease: 'easeOut' }
 
   const hasPreview = Boolean(primaryPreviewUrl && !isArchive)
 
+  // ── Category label lookup ────────────────────────────────────────────────
+  const rootCategory = allRootCategoryOptions.find(
+    (r) => String(r.id) === String(metadata.rootCategoryId)
+  ) ?? null
+  const rootLabel = rootCategory?.name ?? null
+  const subCategory = rootCategory?.children?.find(
+    (c) => String(c.id) === String(metadata.subCategoryId)
+  ) ?? null
+  const subLabel = subCategory?.name ?? null
+
   const checks = [
     { label: 'File uploaded', ok: uploadReady },
     { label: 'Scan passed', ok: uploadReady },
     { label: 'Preview ready', ok: hasPreview || (isArchive && screenshots.length > 0) },
     { label: 'Rights confirmed', ok: Boolean(metadata.rightsAccepted) },
+    { label: 'Tags added', ok: Array.isArray(metadata.tags) && metadata.tags.length > 0 },
   ]
 
   return (
@@ -104,11 +127,11 @@ export default function Step3Publish({
               {metadata.contentType && (
                 <span className="capitalize">Type: <span className="text-white/75">{metadata.contentType}</span></span>
               )}
-              {metadata.rootCategoryId && (
-                <span>Category: <span className="text-white/75">{metadata.rootCategoryId}</span></span>
+              {rootLabel && (
+                <span>Category: <span className="text-white/75">{rootLabel}</span></span>
               )}
-              {metadata.subCategoryId && (
-                <span>Sub: <span className="text-white/75">{metadata.subCategoryId}</span></span>
+              {subLabel && (
+                <span>Sub: <span className="text-white/75">{subLabel}</span></span>
               )}
             </div>
 
@@ -129,6 +152,32 @@ export default function Step3Publish({
         </div>
       </div>
 
+      {/* Publish summary: visibility + schedule */}
+      <div className="flex flex-wrap gap-3">
+        <span className="inline-flex items-center gap-1.5 rounded-full border border-white/15 bg-white/6 px-2.5 py-1 text-xs text-white/60">
+          👁 {visibility === 'public' ? 'Public' : visibility === 'unlisted' ? 'Unlisted' : 'Private'}
+        </span>
+        {publishMode === 'schedule' && scheduledAt ? (
+          <span className="inline-flex items-center gap-1.5 rounded-full border border-violet-300/30 bg-violet-500/15 px-2.5 py-1 text-xs text-violet-200">
+            🕐 Scheduled
+            {timezone && (
+              <span className="text-violet-300/70">
+                {' '}·{' '}
+                {new Intl.DateTimeFormat('en-GB', {
+                  timeZone: timezone,
+                  weekday: 'short', day: 'numeric', month: 'short',
+                  hour: '2-digit', minute: '2-digit', hour12: false,
+                }).format(new Date(scheduledAt))}
+              </span>
+            )}
+          </span>
+        ) : (
+          <span className="inline-flex items-center gap-1.5 rounded-full border border-emerald-300/30 bg-emerald-500/12 px-2.5 py-1 text-xs text-emerald-200">
+            ⚡ Publish immediately
+          </span>
+        )}
+      </div>
+
       {/* Readiness badges */}
       <div>
         <p className="mb-2.5 text-xs uppercase tracking-wide text-white/40">Readiness checks</p>