Texas Strawberry Crunch Sheet Cake

Name: Texas Strawberry Crunch Sheet Cake
Ingredients: Nonstick cooking spray; 1 pound strawberries, trimmed; 3 cups cake flour, sifted; 1 teaspoon baking soda; 1 teaspoon fine salt; 1 1/4 cups unsalted butter, at room temperature; 2 cups granulated sugar; 3 large eggs, at room temperature; 1 teaspoon pure vanilla extract; Pink gel food coloring, optional; One 0.25-ounce packet unflavored gelatin (see Cook’s Note); 2 cups heavy whipping cream; 2 cups confectioners’ sugar, sifted; 4 ounces spiced biscuit cookies, such as Lotus Biscoff (about 4 cookies); 4 ounces strawberry crème-filled sandwich cookies or shortbread (about 4 cookies); One 2.75-ounce package strawberry-flavored wafer cookies, such as Keebler (about 12 wafers)