Shopify CSV Fix — error report
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Rows cleaned: 5
Issues flagged: 7

- L2: empty Handle → filled as 'blue-tee-soft-cotton'
- L3: duplicate Variant SKU 'SKU-BLUE-M' (also L2)
- L4: empty Title — row kept but flagged
- L4: empty Variant SKU
- L5: empty Handle → filled as 'ceramic-mug-12oz'
- L5: Variant Price — empty price
- L5: Tags used ';' — normalized to comma-separated
