[REF] product_origin_char: simplify to template-based origin

- Move origin_text field from product.supplierinfo to product.template
- Add related field in product.product for variant access
- Remove dependency on product_main_seller
- Update views to show field near category (editable)
- Rewrite tests for new architecture
- Update all documentation (README, readme/ fragments)
- Bump version to 18.0.2.0.0

product_origin_char/readme/CONFIGURE.rst

@@ -1,4 +1,4 @@
 No configuration is needed. The module works automatically after installation.
 
-The origin text displayed on a product is based on the **main vendor** as determined
-by ``product_main_seller`` (the first supplier in the vendors list).
+The origin field appears in the product form view (next to category) and can be
+enabled as an optional column in list views.

product_origin_char/readme/DESCRIPTION.rst

@@ -1,5 +1,4 @@
-This module replaces the structured country/state origin fields from ``product_origin``
-with a flexible free-text field that can be defined per supplier.
+This module adds a simple free-text ``origin_text`` field to products.
 
 **Problem:**
 
@@ -17,18 +16,15 @@ These free-form descriptions don't fit into structured country/state fields.
 
 **Solution:**
 
-This module adds a translatable ``origin_text`` field to ``product.supplierinfo`` that:
+This module adds a simple ``origin_text`` field to ``product.template`` that:
 
 * Allows free-form text to describe product origin
-* Is stored per supplier (different suppliers may have different origin info)
-* Is translatable (can be described differently in each language)
-* Is automatically displayed on the product based on the main vendor
-  (from ``product_main_seller`` module)
+* Is accessible from product variants via related field
+* Works with any product workflow
 
 **Features:**
 
-* Free-text ``Origin`` field in supplier info (Purchase tab of product)
-* Computed ``Origin`` field in product form (shows main vendor's origin)
-* Field is visible in product list view (optional column)
-* Full translation support for multiple languages
-* Compatible with existing supplier management workflows
+* Free-text ``Origin`` field in product form
+* Field visible in product list views (optional column)
+* Variants share the same origin as their template
+* Editable from both template and variant views

product_origin_char/readme/INSTALL.rst

@@ -1,7 +1,6 @@
 This module depends on:
 
 * ``product`` - Base product management
-* ``product_main_seller`` - To determine the main vendor for products
 
 To install:
 

product_origin_char/readme/USAGE.rst

@@ -1,26 +1,18 @@
 **To add origin information to a product:**
 
 #. Go to a product form
-#. Open the **Purchase** tab
-#. In the **Vendors** section, select a supplier line
-#. Fill in the **Origin** field with free-form text describing the origin
-   (e.g., "Valencia, Huerta de..., Spain")
+#. Find the **Origin** field (near the product category)
+#. Fill in the origin with free-form text
+   (e.g., "Valencia, Spain", "Local producer - Basque Country")
 #. Save the product
 
-**To view origin information:**
+**To view origin information in lists:**
 
-* The **Origin** field will be automatically displayed on the product form
-  (below the **Main Vendor** field in the Purchase tab)
-* The origin shown is from the **main vendor** (first supplier in the list)
-* You can also add the Origin column to product list views
+* In product list views, enable the optional "Origin" column
+* The origin is shown for both product templates and variants
 
-**To change the displayed origin:**
+**Product variants:**
 
-* Reorder the vendors list to change which is the main vendor
-* The origin text will automatically update to show the new main vendor's origin
-
-**Multi-language support:**
-
-* The origin text is translatable
-* Switch to another language and edit the supplier info to provide a translation
-* Each language can have a different description of the origin
+* All variants of a product template share the same origin
+* Updating the origin on any variant updates the template
+* This ensures consistency across all variants