Organize custom scripts under Assets/Baba_yaga and merge Opsive folders to Assets root

Assets/Baba_yaga/GameSetup/Maze/Interfaces/IMazeAlgorithm.cs

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+namespace Baba_yaga.GameSetup.Maze
+{
+    /// <summary>
+    /// Interface for all maze generation algorithms.
+    /// Supports both immediate and step-by-step (animated) generation.
+    /// </summary>
+    [UnityEngine.Scripting.APIUpdating.MovedFrom(true, sourceNamespace: "Hallucinate.GameSetup.Maze", sourceAssembly: "Opsive.UltimateCharacterController")]
+    public interface IMazeAlgorithm
+    {
+        /// <summary>
+        /// Generates the maze immediately in one frame.
+        /// </summary>
+        void Generate(MazeGrid grid);
+
+        /// <summary>
+        /// Generates the maze step-by-step for visualization.
+        /// </summary>
+        System.Collections.IEnumerator GenerateStepByStep(MazeGrid grid, int cellsPerFrame);
+    }
+}

Assets/Baba_yaga/GameSetup/Maze/Interfaces/IMazeAlgorithm.cs.meta

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+fileFormatVersion: 2
+guid: 46b6a7796ba3c494581e4dcb884da064