- Replace _sync_orders placeholder with full WC order import pipeline
- Add _sync_order_from_wc, _find_or_create_customer, _prepare_sale_order_vals,
_prepare_order_line_vals, _prepare_shipping_line_vals helpers
- Add push methods on woo.order: action_push_shipping, action_push_completed,
action_push_invoice_pdf, action_push_delivery_pdf, _push_messages_to_wc
- Override stock.picking button_validate to auto-create shipment records and
push tracking/delivery PDFs to WooCommerce
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
