Initial commit

srcs/RobotNet10/RobotApp/Communication/CeresSharp/Advanced/EvaluationCallback.cs

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+namespace CeresSharp.Advanced;
+
+/// <summary>
+/// Delegate for evaluation callback.
+/// Called before evaluating cost functions to allow shared computation.
+/// </summary>
+/// <param name="numResiduals">Number of residuals.</param>
+/// <param name="numParameterBlocks">Number of parameter blocks.</param>
+/// <param name="parameterBlockSizes">Array of sizes for each parameter block (can be null).</param>
+public delegate void EvaluationCallback(int numResiduals, int numParameterBlocks, int[]? parameterBlockSizes);