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/models/woo_product_map.py

@@ -207,10 +207,12 @@ class WooProductMap(models.Model):
         except Exception as e:
             raise UserError("Failed to convert WC product to variable: %s" % str(e))
 
+        # Build WC attribute ID lookup
+        wc_attr_id_map = {a['name'].upper(): a['id'] for a in wc_attributes}
+
         # Step 3: Create a WC variation for each Odoo variant
         created = 0
         for variant in variants:
-            # Check if variation already mapped
             existing = self.search([
                 ('instance_id', '=', inst.id),
                 ('product_id', '=', variant.id),
@@ -219,13 +221,17 @@ class WooProductMap(models.Model):
             if existing:
                 continue
 
-            # Build variation attributes
+            # Build variation attributes with WC 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_aid = wc_attr_id_map.get(attr_name.upper(), 0)
+                entry = {'option': ptav.name}
+                if wc_aid:
+                    entry['id'] = wc_aid
+                else:
+                    entry['name'] = attr_name
+                var_attributes.append(entry)
 
             var_data = {
                 'regular_price': str(variant.list_price),