Implement catalog CRUD overhaul, snapshot fallback activation, and billing/UX hardening

app/database/migrations/2026_02_16_000300_add_is_active_to_user_keywords_table.php

@@ -0,0 +1,25 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('user_keywords', function (Blueprint $table): void {
+            $table->boolean('is_active')->default(true)->after('lang');
+            $table->index(['user_id', 'is_active']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('user_keywords', function (Blueprint $table): void {
+            $table->dropIndex(['user_id', 'is_active']);
+            $table->dropColumn('is_active');
+        });
+    }
+};
+

app/database/migrations/2026_02_16_001000_add_unique_index_to_emojis_slug.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        if (!Schema::hasTable('emojis')) {
+            return;
+        }
+
+        $duplicates = DB::table('emojis')
+            ->select('slug', DB::raw('COUNT(*) as aggregate'))
+            ->groupBy('slug')
+            ->havingRaw('COUNT(*) > 1')
+            ->limit(5)
+            ->pluck('slug')
+            ->all();
+
+        if (!empty($duplicates)) {
+            throw new \RuntimeException(
+                'Cannot add unique index on emojis.slug because duplicate slugs exist: '.implode(', ', $duplicates)
+            );
+        }
+
+        Schema::table('emojis', function (Blueprint $table): void {
+            $table->unique('slug', 'emojis_slug_unique');
+        });
+    }
+
+    public function down(): void
+    {
+        if (!Schema::hasTable('emojis')) {
+            return;
+        }
+
+        Schema::table('emojis', function (Blueprint $table): void {
+            $table->dropUnique('emojis_slug_unique');
+        });
+    }
+};