feat: add editable WC SKU and Odoo SKU columns with bidirectional sync

Both SKU fields are inline-editable. Arrow buttons sync individual SKUs.
Bulk buttons sync all SKUs Odoo→WC or WC→Odoo.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

fusion-woo-odoo/fusion_woocommerce/models/woo_instance.py

@@ -772,6 +772,30 @@ class WooInstance(models.Model):
         ])
         maps.action_push_price_to_odoo()
 
+    # ------------------------------------------------------------------
+    # Bulk SKU Sync (UI actions)
+    # ------------------------------------------------------------------
+
+    def action_bulk_sku_odoo_to_wc(self):
+        """Push all Odoo SKUs to WooCommerce."""
+        self.ensure_one()
+        maps = self.env['woo.product.map'].search([
+            ('instance_id', '=', self.id),
+            ('state', '=', 'mapped'),
+            ('product_id', '!=', False),
+        ])
+        maps.action_push_sku_to_wc()
+
+    def action_bulk_sku_wc_to_odoo(self):
+        """Pull all WC SKUs to Odoo."""
+        self.ensure_one()
+        maps = self.env['woo.product.map'].search([
+            ('instance_id', '=', self.id),
+            ('state', '=', 'mapped'),
+            ('product_id', '!=', False),
+        ])
+        maps.action_push_sku_to_odoo()
+
     # ------------------------------------------------------------------
     # Product / Price Sync (Task 22)
     # ------------------------------------------------------------------

fusion-woo-odoo/fusion_woocommerce/models/woo_product_map.py

@@ -155,6 +155,46 @@ class WooProductMap(models.Model):
             'Sale price set to $%.2f' % price,
         )
 
+    # ------------------------------------------------------------------
+    # SKU Sync
+    # ------------------------------------------------------------------
+
+    def action_set_wc_sku(self, sku):
+        """Set WC product SKU."""
+        self.ensure_one()
+        if not self.instance_id:
+            return
+        client = self.instance_id._get_client()
+        client.update_product(self.woo_product_id, {'sku': sku})
+        self.woo_sku = sku
+        self.instance_id._log_sync(
+            'product', 'odoo_to_woo', self.woo_product_name, 'success',
+            'WC SKU set to %s' % sku,
+        )
+
+    def action_push_sku_to_odoo(self):
+        """Copy WC SKU to Odoo internal reference."""
+        for rec in self:
+            if rec.product_id and rec.woo_sku:
+                rec.product_id.default_code = rec.woo_sku
+                rec.instance_id._log_sync(
+                    'product', 'woo_to_odoo', rec.product_id.name, 'success',
+                    'Odoo SKU set from WC: %s' % rec.woo_sku,
+                )
+
+    def action_push_sku_to_wc(self):
+        """Copy Odoo internal reference to WC SKU."""
+        for rec in self:
+            if rec.product_id and rec.instance_id:
+                sku = rec.product_id.default_code or ''
+                client = rec.instance_id._get_client()
+                client.update_product(rec.woo_product_id, {'sku': sku})
+                rec.woo_sku = sku
+                rec.instance_id._log_sync(
+                    'product', 'odoo_to_woo', rec.product_id.name, 'success',
+                    'WC SKU set from Odoo: %s' % sku,
+                )
+
     # ------------------------------------------------------------------
     # Image Sync (Task 22)
     # ------------------------------------------------------------------