修改场景实体查询为unordered_set存储，提升查询效率, 修改Physics的SyncScene也为unordered_set

Engine/src/Physics/PhysicsWorld.cpp

@@ -343,7 +343,7 @@ namespace Engine {
     void PhysicsWorld::SyncScene() {
         auto &reg = m_Scene.GetRegistry();
         auto &bi = m_System->GetBodyInterface();
-        std::vector<u32> invalidated; // 本帧销毁/重建 body → 约束失效传染
+        std::unordered_set<u32> invalidated; // 本帧销毁/重建 body → 约束失效传染
 
         // 1. 孤儿清理：实体销毁 / 组件被移除 → 移除 body
         for (auto it = m_Bodies.begin(); it != m_Bodies.end();) {
@@ -353,7 +353,7 @@ namespace Engine {
                 bi.RemoveBody(it->second.id);
                 bi.DestroyBody(it->second.id);
                 m_BodyToEntity.erase(it->second.id.GetIndexAndSequenceNumber());
-                invalidated.push_back(it->first);
+                invalidated.insert(it->first);
                 it = m_Bodies.erase(it);
             } else {
                 ++it;
@@ -373,7 +373,7 @@ namespace Engine {
                     bi.DestroyBody(found->second.id);
                     m_BodyToEntity.erase(found->second.id.GetIndexAndSequenceNumber());
                     m_Bodies.erase(found);
-                    invalidated.push_back(bits);
+                    invalidated.insert(bits);
                 }
                 rb.bodyValid = false;
                 continue;
@@ -385,7 +385,7 @@ namespace Engine {
                     bi.DestroyBody(found->second.id);
                     m_BodyToEntity.erase(found->second.id.GetIndexAndSequenceNumber());
                     m_Bodies.erase(found);
-                    invalidated.push_back(bits);
+                    invalidated.insert(bits);
                 }
                 CreateBody(bits, rb, tr);
                 continue;
@@ -407,7 +407,7 @@ namespace Engine {
                 bi.DestroyBody(rec.id);
                 m_BodyToEntity.erase(found->second.id.GetIndexAndSequenceNumber());
                 m_Bodies.erase(found);
-                invalidated.push_back(bits);
+                invalidated.insert(bits);
                 rb.bodyValid = false;
                 CreateBody(bits, rb, tr);
                 continue;
@@ -456,11 +456,10 @@ namespace Engine {
 
     // ---- 约束对账 ----
 
-    void PhysicsWorld::SyncConstraints(const std::vector<u32> &invalidated) {
+    void PhysicsWorld::SyncConstraints(const std::unordered_set<u32> &invalidated) {
         auto &reg = m_Scene.GetRegistry();
-        const auto tainted = [&invalidated](u32 bits) {
-            return std::find(invalidated.begin(), invalidated.end(), bits)
-                   != invalidated.end();
+        const auto tainted = [&invalidated](const u32 bits) {
+                   return invalidated.count(bits);
         };
 
         // 1. owner 实体/组件没了（或被禁用），或任一端 body 本帧被销毁/重建 → 移除
@@ -901,6 +900,7 @@ namespace Engine {
         rb.bodyValid = true;
     }
 
+
     void PhysicsWorld::RemoveBody(const u32 entityBits) {
         const auto found = m_Bodies.find(entityBits);
         if (found == m_Bodies.end()) return;