Add HL3D branding, Etsy Live/Draft paging and Projects lifecycle

Replace the old touchmark/PNG identity with the supplied lockup and
monogram, segmented role-aware navigation, Live/Draft listing filters
with generation-based cache invalidation, and admin Projects covering
immutable file revisions, listing live pointers, and exact-decimal
filament/packaging/shipping costing. Additive schema only; no Etsy
publication. Isolated clone tests: 301 tests, 1162 assertions.

config/filesystems.php

@@ -38,6 +38,14 @@ return [
             'report' => false,
         ],
 
+        'project_files' => [
+            'driver' => 'local',
+            'root' => storage_path('app/project-files'),
+            'serve' => false,
+            'throw' => true,
+            'report' => false,
+        ],
+
         'public' => [
             'driver' => 'local',
             'root' => storage_path('app/public'),