feat(city): add player marketplace, mission journal, character customization and presence

- Player-to-player marketplace with listings, buying and selling
- Mission system with progress tracking and money rewards
- Character appearance customization (skin, hair, face, beard, accessory)
- Multiplayer presence feed showing nearby citizens in near-real-time
- Admin world dashboard with live platform metrics
- Bus and train transportation with temporary ride state
- Mobile joystick controls and minimap HUD
- Education bonus applied to work salary

database/migrations/2026_10_18_003100_create_missions_table.php

@@ -0,0 +1,53 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * Lightweight citizen missions (daily journal goals).
+ *
+ * Tracks progress per character and pays a money reward on completion.
+ */
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('missions', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('city_id')->constrained('cities')->cascadeOnDelete();
+            $table->string('code', 60)->unique();
+            $table->string('title', 160);
+            $table->string('description', 400);
+            $table->string('metric', 40); // exercise_count|buildings|transactions|education
+            $table->unsignedInteger('target')->default(1);
+            $table->decimal('reward', 10, 2)->default(20);
+            $table->boolean('is_active')->default(true)->index();
+            $table->timestamps();
+        });
+
+        Schema::create('character_missions', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('character_id')->constrained('characters')->cascadeOnDelete();
+            $table->foreignId('mission_id')->constrained('missions')->cascadeOnDelete();
+            $table->unsignedInteger('progress')->default(0);
+            $table->boolean('is_completed')->default(false)->index();
+            $table->timestamp('completed_at')->nullable();
+            $table->timestamps();
+
+            $table->unique(['character_id', 'mission_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('character_missions');
+        Schema::dropIfExists('missions');
+    }
+};