feat: Add metro transit, gadgets, shop, social apps, and traffic models checkpoint

Ananta.Server/Ananta.Gameplay/Traffic/RoadNetworkModels.cs

@@ -8,6 +8,100 @@ public sealed class TrafficSignalFile
 {
     [JsonPropertyName("lights")]
     public List<TrafficLightEntry> Lights { get; set; } = [];
+
+    [JsonPropertyName("intersections")]
+    public List<TrafficIntersectionEntry> Intersections { get; set; } = [];
+}
+
+/// <summary>
+/// City zone-graph intersection mapping (InterZones.json): for every signalized city
+/// intersection (id from the world TrafficLights dump) the indexes of its zones in the
+/// city ZoneGraphStorage zones array. The client's AetherIntersectionManager resolves each
+/// SyncAetherAIInitDatas entry by ZoneIndex against its baked StaticIntersectionData blob,
+/// so these are the values ClientTrafficIntersectionInitInfo.ZoneIndex must carry.
+/// Generated from readable_world_dump 03_ZONEGRAPHS vfc_1286_e108 + 04_WORLD_JSON vfc_1286_e104.
+/// </summary>
+public sealed class IntersectionZoneFile
+{
+    [JsonPropertyName("source")]
+    public string Source { get; set; } = string.Empty;
+
+    [JsonPropertyName("intersections")]
+    public List<IntersectionZoneEntry> Intersections { get; set; } = [];
+}
+
+public sealed class IntersectionZoneEntry
+{
+    [JsonPropertyName("id")]
+    public uint Id { get; set; }
+
+    [JsonPropertyName("zones")]
+    public List<int> Zones { get; set; } = [];
+}
+
+/// <summary>
+/// The client's baked StaticIntersectionData.json (recovered from the L50 VFS, artifact 111):
+/// the authoritative intersection zones for the city raid — one entry per signalized
+/// intersection, with its real zone-graph ZoneIndex, position, traffic-light bindings and
+/// per-period control tables. This is exactly what the client's AetherIntersectionManager
+/// resolves against, so the ambient init must use these ZoneIndexes.
+/// </summary>
+public sealed class StaticIntersectionFile
+{
+    [JsonPropertyName("ZoneInfos")]
+    public List<StaticZoneInfoEntry> ZoneInfos { get; set; } = [];
+}
+
+public sealed class StaticZoneInfoEntry
+{
+    [JsonPropertyName("ZoneIndex")]
+    public int ZoneIndex { get; set; }
+
+    [JsonPropertyName("Position")]
+    public List<float> Position { get; set; } = [];
+
+    [JsonPropertyName("TrafficLights")]
+    public List<StaticTrafficLightEntry> TrafficLights { get; set; } = [];
+
+    [JsonPropertyName("TrafficLightPeriodControls")]
+    public List<StaticPeriodRowEntry> TrafficLightPeriodControls { get; set; } = [];
+}
+
+public sealed class StaticTrafficLightEntry
+{
+    [JsonPropertyName("Index")]
+    public int Index { get; set; }
+
+    [JsonPropertyName("CrosswalkControlIndex")]
+    public int CrosswalkControlIndex { get; set; }
+
+    [JsonPropertyName("VehicleControlIndex")]
+    public int VehicleControlIndex { get; set; }
+}
+
+public sealed class StaticPeriodRowEntry
+{
+    [JsonPropertyName("TrafficLightControls")]
+    public List<StaticLightControlEntry> TrafficLightControls { get; set; } = [];
+
+    [JsonPropertyName("VehicleLanesOpen")]
+    public List<int> VehicleLanesOpen { get; set; } = [];
+}
+
+public sealed class StaticLightControlEntry
+{
+    [JsonPropertyName("TrafficLightStateFlags")]
+    public int TrafficLightStateFlags { get; set; }
+}
+
+/// <summary>One signalized intersection: its id and the zebra (stop-line group) indexes it controls.</summary>
+public sealed class TrafficIntersectionEntry
+{
+    [JsonPropertyName("id")]
+    public uint Id { get; set; }
+
+    [JsonPropertyName("zebras")]
+    public List<uint> Zebras { get; set; } = [];
 }
 
 public sealed class TrafficLightEntry