[DOC] Actualizar documentación y instrucciones con cambios recientes (v18.0.1.3.1)

- [FIX] Actualizar copilot-instructions.md con nuevas secciones:
  * QWeb Template Best Practices (patrón crítico para templates complejos)
  * Eskaera System mejorado con info de lazy loading v18.0.1.3.0+
  * QWeb Template Errors en Common Issues & Solutions
  * Recent Changes Summary (actualizado a 2026-02-18)

- [ADD] Nuevo documento docs/RECENT_CHANGES.md:
  * Timeline completo de cambios (Feb 2-18, 2026)
  * 4 secciones principales de cambios documentados
  * Impacto y acciones requeridas por developers
  * Referencias cruzadas a documentación técnica

- [UPD] README.md principal:
  * website_sale_aplicoop actualizado a v18.0.1.3.1
  * Mención de fixes críticos de v18.0.1.3.1
  * Referencias a FINAL_SOLUTION_SUMMARY.md

- [REF] product_main_seller/README.md:
  * Removidas referencias obsoletas a default_supplier_id
  * Documentación actualizada para usar main_seller_id
  * Simplificada sección de Computation Logic

- [UPD] docs/README.md:
  * Nueva sección "Cambios Recientes"
  * Reorganizado índice de documentación de template fixes
  * Mejorada estructura de secciones de troubleshooting

Cambios Documentados:
✅ Refactoring product_main_seller (18 Feb) - Removido campo alias
✅ v18.0.1.3.1 Fixes (16 Feb) - Date calculations y template rendering
✅ v18.0.1.3.0 Lazy Loading (12 Feb) - Performance improvement 95%
✅ Template Logic Refactoring (Feb 2-16) - QWeb best practices

+438 líneas de documentación nueva/actualizada

product_main_seller/README.md

@@ -21,29 +21,19 @@ Adds a "Main Vendor" field to products that automatically tracks the primary sup
 
 ### Fields Added
 
-- `default_supplier_id` (Many2one → res.partner, computed, stored)
+- `main_seller_id` (Many2one → res.partner, computed, stored)
   - The main vendor for this product
   - Computed from `seller_ids` with lowest sequence
   - Stored for performance
-  - Searchable
-
-- `default_supplier_ref` (Char, related to `default_supplier_id.ref`)
-  - The supplier's reference code
-  - Readonly
+  - Searchable and filterable
 
 ### Computation Logic
 
 The main vendor is determined by:
 1. Looking at all supplierinfo records (`seller_ids`)
-2. Filtering for valid suppliers (not companies)
+2. Filtering for valid suppliers (active partners)
 3. Selecting the one with the **lowest sequence** number
-4. If no sequence, uses the first one
-
-### Migration Hook
-
-Includes `pre_init_hook` that:
-- Populates `default_supplier_id` on existing products during installation
-- Ensures data consistency from the start
+4. If no suppliers, returns empty
 
 ## Dependencies
 
@@ -57,6 +47,8 @@ docker-compose exec odoo odoo -d odoo -u product_main_seller --stop-after-init
 
 ## Usage
 
+## Usage
+
 ### Viewing Main Vendor
 
 1. Open a product form (Products > Products > [Product])
@@ -76,28 +68,17 @@ To change the main vendor:
 ```python
 # Find all products from a specific vendor
 products = self.env['product.template'].search([
-    ('default_supplier_id', '=', vendor_id)
+    ('main_seller_id', '=', vendor_id)
 ])
 ```
 
-## OCA Source
-
-- **Repository**: [purchase-workflow](https://github.com/OCA/purchase-workflow)
-- **Original Author**: GRAP
-- **Maintainers**: legalsylvain, quentinDupont
-- **License**: AGPL-3
-
-## Modifications for Kidekoop
-
-None - Used as-is from OCA.
-
 ## Use Cases in Kidekoop
 
 This module is critical for:
-- `product_price_category_supplier`: Bulk updating products by main vendor
-- Purchase order management
 - Vendor performance analysis
+- Purchase order management
 - Inventory planning by supplier
+- Default supplier selection in purchase workflows
 
 ## Views Modified