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

lang/en.json

@@ -217,5 +217,32 @@
     "city.exercise_max_health": "Health is already at maximum!",
     "city.exerciseStart": "Starting exercise…",
     "city.exerciseStop": "Exercise stopped.",
-    "city.ped_red": "Red pedestrian light — wait for the walk signal."
+    "city.ped_red": "Red pedestrian light — wait for the walk signal.",
+    "nav.world": "World",
+    "admin.world.title": "World dashboard",
+    "admin.world.hint": "Live platform metrics for the persistent world.",
+    "admin.world.users": "Users",
+    "admin.world.characters": "Characters",
+    "admin.world.economy": "Economy",
+    "admin.world.trade_volume": "Trade volume",
+    "admin.world.world": "Finished houses",
+    "admin.world.market": "Market",
+    "admin.world.missions": "Missions",
+    "admin.world.health": "Avg health",
+    "admin.world.education": "Avg education",
+    "city.customize_saved": "Appearance updated.",
+    "city.market_listed": "Listing published on the market.",
+    "city.market_bought": "Purchase complete!",
+    "city.market_unavailable": "Listing unavailable.",
+    "city.ride_need_stop": "Get near a road (bus) or the rails (train).",
+    "city.ride_bus_ok": "You boarded the bus!",
+    "city.ride_train_ok": "You boarded the train!",
+    "city.missions_done": "Mission complete",
+    "city.act_market": "Market",
+    "city.act_customize": "Appearance",
+    "city.act_ride_bus": "Bus",
+    "city.act_ride_train": "Train",
+    "city.hud_minimap": "Map",
+    "city.online_now": "online",
+    "city.marketBuy": "Buy"
 }