Add Departure Time Slot and Catalog read API (T2.4, T2.5)

Adds the shared DepartureTimeSlot catalog entity with its Filament
resource, and public GET /api/v1/companies + /api/v1/destinations
endpoints (auth:sanctum + throttled) for the mini app/mobile/agent
clients to consume.

app-modules/catalog/database/migrations/2026_08_06_130507_create_departure_time_slots_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('departure_time_slots', function (Blueprint $table) {
+            $table->id();
+            $table->string('label');
+            $table->time('time');
+            $table->boolean('is_active')->default(true);
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('departure_time_slots');
+    }
+};