feat(blog-category): add search functionality to BlogCategoryService

[Reaganz-Wat]

Pull Request

Description

This PR introduces a new search functionality for the BlogCategoryService, allowing users to search for blog categories by name. The search is case-insensitive and supports partial matching, improving the user experience and content discoverability. Additionally, comprehensive unit tests have been added to ensure the functionality works as expected.
Key changes:

• Added a new searchCategories method to BlogCategoryService.
• Implemented case-insensitive and partial matching using TypeORM's createQueryBuilder.
• Added unit tests for the search functionality, covering edge cases like empty search terms, special characters, and no matches.
• Updated the API documentation to reflect the new search endpoint.

Related Issue

Fixes #1290

Type of Change

• feat: New feature
• fix: Bug fix
• docs: Documentation updates
• style: Code style/formatting changes
• refactor: Code refactoring
• perf: Performance improvements
• test: Test additions/updates
• chore: Build process or tooling changes
• ci: CI configuration changes
• other:

How Has This Been Tested?

• Unit tests
• Integration tests
• Manual tests

Test Evidence

All unit tests are passing. Below is a screenshot of the test results:

Postman test

Screenshots (if applicable)

Documentation Screenshots (if applicable)

Checklist

• My code follows the project's coding style
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published
• I have included a screenshot showing all tests passing
• I have included documentation screenshots (if applicable)

Additional Notes

• The API endpoint for searching blog categories has been documented using Swagger annotations.
• Edge cases like empty search terms and special characters have been handled gracefully.