fix: use WC attribute ID (not name) when setting variation attributes

WooCommerce silently ignores attribute 'name' on variation updates —
requires 'id' (the WC attribute ID). Built a lookup map from the
parent product's wc_attributes and use 'id' in all variation payloads.
Fixed in all 3 files: variant push wizard, product creation wizard,
and product map direct push.

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

fusion-woo-odoo/fusion_woocommerce/wizard/woo_variant_push.py

@@ -108,6 +108,11 @@ class WooVariantPushWizard(models.TransientModel):
                 'options': wc_terms,
             })
 
+        # Build a lookup: Odoo attribute name → WC attribute ID
+        wc_attr_id_map = {}
+        for wc_attr in wc_attributes:
+            wc_attr_id_map[wc_attr['name'].upper()] = wc_attr['id']
+
         # Step 2: Update product as variable with attributes + set default
         # Default attribute = first included variant's attribute values
         default_attrs = []
@@ -234,13 +239,17 @@ class WooVariantPushWizard(models.TransientModel):
             if not wc_var_id:
                 continue
 
-            # Build variation attributes from Odoo
+            # Build variation attributes with WC attribute IDs
             var_attributes = []
             for ptav in variant.product_template_attribute_value_ids:
-                var_attributes.append({
-                    'name': ptav.attribute_id.name,
-                    'option': ptav.name,
-                })
+                attr_name = ptav.attribute_id.name
+                wc_attr_id = wc_attr_id_map.get(attr_name.upper(), 0)
+                attr_entry = {'option': ptav.name}
+                if wc_attr_id:
+                    attr_entry['id'] = wc_attr_id
+                else:
+                    attr_entry['name'] = attr_name
+                var_attributes.append(attr_entry)
 
             var_data = {
                 'regular_price': str(line.regular_price),