Migrate to file-scoped namespaces

[JamieMagee]

We performed this migration in #398, but this code was added later in #1425.

This also updates our documentation to show file-scoped namespaces.

See https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-10.0/file-scoped-namespaces

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.2%. Comparing base (079b805) to head (f472971).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #1549   +/-   ##
=====================================
  Coverage   90.2%   90.2%           
=====================================
  Files        423     423           
  Lines      35476   35476           
  Branches    2209    2209           
=====================================
  Hits       32021   32021           
  Misses      3001    3001           
  Partials     454     454           

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[Copilot]

Pull Request Overview

This PR completes the migration to file-scoped namespaces (C# 10 feature) for code added after the initial migration in #398. The changes modernize the codebase syntax and improve readability by reducing nesting.

• Migrates 6 source files in the Uv detector to file-scoped namespace syntax
• Updates test file UvLockTests.cs to use file-scoped namespaces
• Updates documentation to demonstrate file-scoped namespace pattern

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test/Microsoft.ComponentDetection.Detectors.Tests/UvLockTests.cs	Migrates test class from nested to file-scoped namespace
src/Microsoft.ComponentDetection.Detectors/uv/UvSource.cs	Migrates source model class to file-scoped namespace
src/Microsoft.ComponentDetection.Detectors/uv/UvPackage.cs	Migrates package model class to file-scoped namespace
src/Microsoft.ComponentDetection.Detectors/uv/UvLockComponentDetector.cs	Migrates detector implementation to file-scoped namespace
src/Microsoft.ComponentDetection.Detectors/uv/UvLock.cs	Migrates lock file parser to file-scoped namespace
src/Microsoft.ComponentDetection.Detectors/uv/UvDependency.cs	Migrates dependency model class to file-scoped namespace
docs/creating-a-new-service.md	Updates documentation examples to show file-scoped namespace syntax

[github-actions]

👋 Hi! It looks like you modified some files in the Detectors folder.
You may need to bump the detector versions if any of the following scenarios apply:

• The detector detects more or fewer components than before
• The detector generates different parent/child graph relationships than before
• The detector generates different devDependencies values than before

If none of the above scenarios apply, feel free to ignore this comment 🙂