[I18N] website_sale_aplicoop, product_origin_char: add Catalan translation

Add ca.po for both addons, matching the existing es/eu coverage
(378 and 4 entries respectively). Add the missing "ca" fallback block
in website_sale_i18n.py alongside the existing es/eu ones, and correct
the i18n README, which falsely claimed complete pt/gl/fr/it coverage
that was never actually present.

website_sale_aplicoop/i18n/README.md

@@ -2,21 +2,17 @@
 
 ## Language Support
 
-This module has complete translation support for **7 languages**:
+This module has complete translation support for **3 languages**:
 
 | Language | Code | Status | Coverage |
 |----------|------|--------|----------|
 | Spanish | `es` | ✅ Complete | 100% |
-| Portuguese | `pt` | ✅ Complete | 100% |
-| Galician | `gl` | ✅ Complete | 100% |
 | Catalan | `ca` | ✅ Complete | 100% |
 | Basque (Euskera) | `eu` | ✅ Complete | 100% |
-| French | `fr` | ✅ Complete | 100% |
-| Italian | `it` | ✅ Complete | 100% |
 
 ## Translated Content
 
-Each `.po` file contains **66 translations** for:
+Each `.po` file contains **378 translations** for:
 
 - **Selection Field Options** (Days of week, Recurrence periods)
   - Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
@@ -38,9 +34,8 @@ When users switch their Odoo interface language to any of the supported language
 ### Example
 - English: "Group Order"
 - Spanish: "Pedido de Grupo"
-- Portuguese: "Pedido de Grupo"
-- French: "Commande de Groupe"
-- etc.
+- Catalan: "Comanda de Grup"
+- Basque (Euskera): "Taldeko Eskaera"
 
 ## Translation Workflow
 
@@ -62,7 +57,7 @@ msgstr "Pedido de Grupo"  # Spanish translation
 
 - All `.po` files were generated and tested: **40/40 tests passing**
 - Translation coverage: **100%** for all supported languages
-- Last updated: December 16, 2025
+- Last updated: August 13, 2026
 
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