Add maze FBX prefabs and update workspace

Add a new "Assets/Prefabs/Maze/Maze Completed" folder with multiple FBX models (corner, straight, T/junction, cross, dead-end, pipes, planes, light) and corresponding .meta importer files, plus a folder .meta. Update .idea workspace.xml to remove two tracked asset entries and adjust a workItem duration. Also modify Assets/Scripts/Camera Controller/CameraRotationHandler.cs (minor change). These changes import completed maze assets into the project and tidy up IDE workspace metadata.

Assets/Scenes/Main Scene.unity

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   m_PrefabInstance: {fileID: 8240317044381527393}
   m_PrefabAsset: {fileID: 0}
+--- !u!1001 &1815285513
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+  m_Modification:
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+    m_TransformParent: {fileID: 0}
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+      value: -2.2526581
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+      value: 1.4000009
+      objectReference: {fileID: 0}
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+      value: -22.089247
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+      value: 1
+      objectReference: {fileID: 0}
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+      propertyPath: m_LocalRotation.x
+      value: 0
+      objectReference: {fileID: 0}
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+      propertyPath: m_LocalRotation.y
+      value: -0
+      objectReference: {fileID: 0}
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+      value: -0
+      objectReference: {fileID: 0}
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+      value: 0
+      objectReference: {fileID: 0}
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+      value: 0
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+      propertyPath: m_LocalEulerAnglesHint.z
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 919132149155446097, guid: f166211345ac3f94ca66845c3418d4bb, type: 3}
+      propertyPath: m_Name
+      value: Corner_Curved_
+      objectReference: {fileID: 0}
+    m_RemovedComponents: []
+    m_RemovedGameObjects: []
+    m_AddedGameObjects: []
+    m_AddedComponents: []
+  m_SourcePrefab: {fileID: 100100000, guid: f166211345ac3f94ca66845c3418d4bb, type: 3}
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 GameObject:
   m_ObjectHideFlags: 0
@@ -943,15 +1000,15 @@ PrefabInstance:
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       propertyPath: m_LocalPosition.x
-      value: 5.34
+      value: -3.51
       objectReference: {fileID: 0}
     - target: {fileID: 3154409663696148700, guid: 761bdf2e5c0cff4488527355acb975e5, type: 3}
       propertyPath: m_LocalPosition.y
-      value: -0.63026
+      value: -5.22
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     - target: {fileID: 3154409663696148700, guid: 761bdf2e5c0cff4488527355acb975e5, type: 3}
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-      value: -1.89
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       propertyPath: m_LocalRotation.w
@@ -1018,3 +1075,4 @@ SceneRoots:
   m_Roots:
   - {fileID: 1997343489}
   - {fileID: 1142785474}
+  - {fileID: 1815285513}