Fix typo in class name and Spectre.Console markup escaping issue

[Copilot]

Description:

Fixes several bugs discovered during codebase analysis:

1. Typo in class name: WellKnownNamesspaces → WellKnownNamespaces

• Renamed class and file to fix double 's' typo
• Renamed internal field to ImportedNamespaces to avoid CS0542 (member name collision)

2. Spectre.Console markup parsing error in CLI help

• --help was failing with: Error: Could not find color or style 'JsonConverter(typeof(JsonStringEnumConverter))'
• Description text [JsonConverter(...)] was being parsed as markup
• Fixed by escaping brackets: [[JsonConverter(...)]]

Example of the Spectre.Console fix:

Before (broken):

[Description("...will not have [JsonConverter(typeof(JsonStringEnumConverter))] attributes")]

After (fixed):

[Description("...will not have [[JsonConverter(typeof(JsonStringEnumConverter))]] attributes")]

Files changed:

• src/Refitter.Core/WellKnownNamespaces.cs (renamed from WellKnownNamesspaces.cs)
• src/Refitter.Core/RefitInterfaceGenerator.cs
• src/Refitter.Core/ParameterExtractor.cs
• src/Refitter/Settings.cs

Original prompt

Find and resolve bugs and issue in the current code base. Be as thorough as possible

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[christianhelle]

@copilot keep .NET 10 support as the .NET 10 SDK has been officially released

[Copilot]

@copilot keep .NET 10 support as the .NET 10 SDK has been officially released

Restored .NET 10.0 target framework in commit 52d7f65.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull request overview

This PR fixes two bugs discovered during codebase analysis: a typo in a class name and a Spectre.Console markup parsing error in CLI help text.

• Fixed typo: WellKnownNamesspaces → WellKnownNamespaces (removed double 's')
• Escaped square brackets in Description attribute to prevent Spectre.Console markup parsing error
• Updated auto-generated test files with newer NSwag toolchain version (14.6.2.0 → 14.6.3.0)

Reviewed changes

Copilot reviewed 4 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/Refitter/Settings.cs	Fixed Spectre.Console markup escaping by changing [JsonConverter(...)] to [[JsonConverter(...)]] in the Description attribute
src/Refitter.Core/WellKnownNamespaces.cs	Fixed typo in class name (WellKnownNamesspaces → WellKnownNamespaces) and renamed internal field to ImportedNamespaces to avoid CS0542 naming collision
src/Refitter.Core/RefitInterfaceGenerator.cs	Updated references from WellKnownNamesspaces to WellKnownNamespaces
src/Refitter.Core/ParameterExtractor.cs	Updated references from WellKnownNamesspaces to WellKnownNamespaces
src/Refitter.SourceGenerator.Tests/AdditionalFiles/Generated/*.g.cs	Updated auto-generated test files with newer NSwag toolchain version references (14.6.2.0 → 14.6.3.0)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.14%. Comparing base (db4b4c0) to head (52d7f65).
⚠️ Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #828   +/-   ##
=======================================
  Coverage   95.14%   95.14%           
=======================================
  Files          23       23           
  Lines        1938     1938           
  Branches      319      319           
=======================================
  Hits         1844     1844           
  Misses         48       48           
  Partials       46       46           

Flag	Coverage Δ
unittests	95.14% <100.00%> (ø)

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