Update and restructure MySQL Pomelo Entity Framework integration docs

[alistairmatthews]

The existing MySQL Pomelo EF integration document is comprehensive but difficult for beginners. This PR is intended to keep the comprehensive information but make it easier for those who want to get going quickly. I've used Copilot to propagate changes from the new PostgreSQL documents to the MySQL EF ones.

This PR:

• Splits the large integration doc into two: Hosting and Client.
• Adds a getting started short tutorial.
• Adds a Properties of the MySQL resources section to the client reference docs. This describes what configuration values are injected by the WithReference() method.

[Copilot]

Pull request overview

This pull request restructures the MySQL documentation by splitting a single comprehensive document into three separate documents: a getting started guide, a hosting integration reference, and a client integration reference. However, there is a critical mismatch between the document titles and content.

Changes:

• Split the monolithic MySQL documentation into three separate files (get-started, host, and client)
• Updated navigation routing in integration-docs.json, overview.mdx, and sidebar configuration
• Added a "Properties of the MySQL resources" section to the client reference

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
integration-docs.json	Updated href for Aspire.Pomelo.EntityFrameworkCore.MySql package to point to new getting started guide
overview.mdx	Updated MySQL card link to point to new getting started page
mysql-host.mdx	New hosting integration reference document covering MySQL server/database resources
mysql-get-started.mdx	New getting started guide with multi-language examples (C#, Python, JavaScript)
mysql-client.mdx	New client integration reference with properties documentation and configuration options
mysql.mdx	Deleted original monolithic document
integrations.topics.ts	Updated sidebar to show MySQL Pomelo as expandable section with three sub-pages

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[Copilot]

The document title references 'MySQL Pomelo Entity Framework Core integrations' but the content only covers Aspire.MySqlConnector and Aspire.Hosting.MySql packages, not the Aspire.Pomelo.EntityFrameworkCore.MySql package. Entity Framework Core integrations use DbContext and methods like AddDbContext, which are not present in this documentation. Either the title should be changed to remove 'Entity Framework Core' or the content should be updated to cover the actual EF Core integration package.

[Copilot]

The document title references 'MySQL Pomelo Entity Framework Core' but the hosting integration (Aspire.Hosting.MySql) is not specific to Entity Framework Core. The hosting integration can be used with any MySQL client, not just EF Core. The title should either remove 'Entity Framework Core' or clarify that this hosting integration supports multiple client types including EF Core.

[Copilot]

The document title references 'MySQL Pomelo Entity Framework Core Client integration' but the content documents Aspire.MySqlConnector (which provides MySqlDataSource), not Aspire.Pomelo.EntityFrameworkCore.MySql (which would provide DbContext registration). Entity Framework Core integrations use DbContext and methods like AddDbContext. The title should be changed to accurately reflect that this documents the MySqlConnector client integration, not the EF Core integration.