Generate an AIAG Production Control Plan xlsx from JSON input. Produces 13-tab workbook with title, document control, header block, process reference, main control plan worksheet, special characteristics (Critical/Significant/Standard color-coded), measurement system analysis plan, reaction plan library, SPC method allocation, mistake-proofing catalog, audit plan, PFMEA linkage, and references. Outputs IATF 16949-compliant manufacturing control documentation. Use this skill whenever the user mentions Control Plan, AIAG control plan, production control document, or manufacturing process control.