ndi.util.unwrapTableCellContent

 UNWRAPTABLECELLCONTENT Recursively unwraps content from a potentially nested table cell.

    UNWRAPPEDVALUE = NDI.UTIL.UNWRAPTABLECELLCONTENT(CELLVALUE)

    This utility function takes a value, which is often a 1x1 cell array
    when read from a MATLAB table, and unwraps it to retrieve the core data.
    It handles cases where cells might be nested.

    Inputs:
        cellValue - The value from a table cell. This can be a direct value
                    (numeric, char, string) or a cell array (potentially nested).

    Outputs:
        unwrappedValue - The innermost value. If the original or any nested
                         cell is empty, or if the content is an empty array `[]`,
                         it returns NaN. If the final value is a MATLAB string,
                         it is converted to a char array for consistency.

    Example:
        myTable = table({{'some_string'}}, {42}, {{[]}}, {{{{true}}}}, 'VariableNames', {'A','B','C','D'});
        val_A = ndi.util.unwrapTableCellContent(myTable.A); % Returns 'some_string'
        val_B = ndi.util.unwrapTableCellContent(myTable.B); % Returns 42
        val_C = ndi.util.unwrapTableCellContent(myTable.C); % Returns NaN
        val_D = ndi.util.unwrapTableCellContent(myTable.D); % Returns true