Remove TestClient from documentation

[AndreuCodina]

No description provided.

[Copilot]

Pull request overview

Updates the testing documentation to remove reliance on FastAPI’s TestClient and shift examples toward directly building an async ServiceProvider, aligning the docs with async-first testing patterns.

Changes:

• Replaces TestClient(app)-based FastAPI fixture examples with async with services.build_service_provider().
• Updates console-application guidance to clarify why ServiceProvider can’t be imported directly from main().
• Consolidates “globally override services” examples into a single async fixture example.

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[coveralls]

coverage: 99.45%. remained the same
when pulling e0f21a2 on feature/remove-testclient-from-documentation
into 24b4eaa on main.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 comment.

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