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.

database/factories/ProjectCostSnapshotFactory.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Project;
+use App\Models\ProjectCostSnapshot;
+use App\Models\ProjectRevision;
+use App\Models\User;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<ProjectCostSnapshot>
+ */
+class ProjectCostSnapshotFactory extends Factory
+{
+    /**
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'project_id' => Project::factory(),
+            'revision_id' => ProjectRevision::factory(),
+            'currency' => 'GBP',
+            'basis' => ProjectCostSnapshot::BASIS_ESTIMATE,
+            'batch_units' => 1,
+            'filament_total' => null,
+            'packaging_total' => null,
+            'shipping_total' => null,
+            'grand_total' => null,
+            'recorded_by' => User::factory()->create(['role' => 'admin'])->id,
+            'recorded_at' => now(),
+        ];
+    }
+}