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Generate a single-line JavaScript statement, no comments, that uses the existing FabricJS variable named canvas to draw a modern A4 receipt. Requirements: set canvas width to 595 and height to 842, draw a rounded white panel on a light gray page background, add a dark header bar with the title "RECEIPT" and the date inserted using new Date().toLocaleDateString(), create two top columns, left shows "From" with dummy sender lines, right shows "To" with dummy receiver lines, include an Items section with two dummy items showing description, quantity and price, show subtotal, tax and total, add a notes box with dummy notes, use only FabricJS constructors and methods such as fabric.Rect, fabric.Text, fabric.Textbox, fabric.Line, fabric.Group, ensure the statement is a single valid JavaScript expression or statement that will not produce unexpected identifier errors, do not output any HTML, CSS, markdown, or explanatory text, and return only the code inside a single code block.