[18.0][MIG] product_unique_internal_reference: Migration to 18.0

[deeniiz]

No description provided.

[Copilot]

Pull Request Overview

This PR migrates the product_unique_internal_reference module from a previous version to Odoo 18.0. The module ensures unique internal references for products across companies and handles various scenarios including product templates, variants, and multi-company configurations.

Key Changes:

• Migration of all module files to version 18.0
• Updated manifest and version information
• Comprehensive test suite covering duplicate reference scenarios
• Multi-company aware validation logic

Reviewed Changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
__manifest__.py	Updated version to 18.0.1.0.0 and module metadata
models/product_template.py	Added validation constraints for unique internal references in templates
models/product_product.py	Added validation constraints for unique internal references in product variants
tests/test_product_unique_internal_reference.py	Comprehensive test suite covering all duplicate reference scenarios
hooks.py	Pre-installation hook to check for existing conflicting references
i18n/es.po	Spanish translation file for error messages and UI text
Various documentation files	README, description, and contributor information

[Copilot]

The .po file is missing a blank line at the end of the file, which is required by coding guidelines.

[github-actions]

There hasn't been any activity on this pull request in the past 4 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days.
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