feat(homepage): Nova homepage layout — guest/auth split, mascot category tiles, 5-col artwork grids

- HomeController: is_logged_in now lives inside props JSON (not separate view var)
- HomepageService: allForUser() adds user_data, fresh, suggested_creators; auth
  payload includes is_logged_in:true; guest payload merged with is_logged_in:false
- getTrending/getFreshUploads/getFollowingFeed: limit 12→10 (2 clean rows of 5)
- New getUserData() — unread messages + notifications counts via DB
- New getSuggestedCreators() — top followed-count creators not yet followed, cached 5 min

React — new components:
- HomeWelcomeRow: greeting bar with avatar, unread message/notification badges, upload CTA
- HomeFromFollowing: art grid from followed creators with empty-state
- HomeTrendingForYou: personalized grid adapts heading/link to user's top tag
- HomeBecauseYouLike: secondary personalized section keyed on top tag
- HomeSuggestedCreators: 4-col creator cards with avatar, stats, View Profile link
- HomeCTA: gradient upload banner; guest sees Create Account second CTA
- HomeCategories: 5-tile static category grid with mascot images

React — updated:
- HomePage: split into GuestHomePage + AuthHomePage; routes on is_logged_in prop
- HomeHero: isLoggedIn prop; upload href gates on auth; CTA → /discover/trending
- HomeTrending: see-all → /discover/trending; grid 4→5 cols; slice to multiple of 5
- HomeFresh: see-all → /discover/fresh; grid 4→5 cols; slice to multiple of 5
- HomeFromFollowing/TrendingForYou/BecauseYouLike: 5-col grid, slice to multiple of 5
- HomeCategories: mascots per category (wallpapers/photography/skins/other), smaller tiles

resources/js/Pages/Home/HomeHero.jsx

@@ -2,21 +2,23 @@ import React from 'react'
 
 const FALLBACK = 'https://files.skinbase.org/default/missing_lg.webp'
 
-export default function HomeHero({ artwork }) {
+export default function HomeHero({ artwork, isLoggedIn }) {
+  const uploadHref = isLoggedIn ? '/upload' : '/login?redirect=/upload'
+
   if (!artwork) {
     return (
       <section className="relative flex min-h-[27vw] max-h-[300px] w-full items-end overflow-hidden bg-nova-900">
         <div className="pointer-events-none absolute inset-0 bg-gradient-to-t from-nova-900 via-nova-900/60 to-transparent" />
         <div className="relative z-10 w-full px-6 pb-7 sm:px-10 lg:px-16">
           <h1 className="text-2xl font-bold tracking-tight text-white sm:text-4xl">
-            Discover Digital Art
+            Skinbase Nova
           </h1>
           <p className="mt-2 max-w-xl text-sm text-soft">
-            Wallpapers, skins &amp; digital creations from a global community.
+            Discover. Create. Inspire.
           </p>
           <div className="mt-4 flex flex-wrap gap-3">
-            <a href="/browse"  className="rounded-xl bg-accent px-5 py-2 text-sm font-semibold text-white shadow-lg transition hover:brightness-110">Explore</a>
-            <a href="/upload"  className="rounded-xl bg-nova-700 px-5 py-2 text-sm font-semibold text-white shadow-lg transition hover:bg-nova-600">Upload</a>
+            <a href="/discover/trending" className="rounded-xl bg-accent px-5 py-2 text-sm font-semibold text-white shadow-lg transition hover:brightness-110">Explore Trending</a>
+            <a href={uploadHref}  className="rounded-xl bg-nova-700 px-5 py-2 text-sm font-semibold text-white shadow-lg transition hover:bg-nova-600">Upload</a>
           </div>
         </div>
       </section>
@@ -53,13 +55,13 @@ export default function HomeHero({ artwork }) {
         </p>
         <div className="mt-4 flex flex-wrap gap-3">
           <a
-            href="/browse"
+            href="/discover/trending"
             className="rounded-xl bg-accent px-5 py-2 text-sm font-semibold text-white shadow-lg transition hover:brightness-110"
           >
-            Explore
+            Explore Trending
           </a>
           <a
-            href="/upload"
+            href={uploadHref}
             className="rounded-xl bg-nova-700 px-5 py-2 text-sm font-semibold text-white shadow-lg transition hover:bg-nova-600"
           >
             Upload