.NET: Python: [BREAKING] Renamed Github to GitHub

[dmytrostruk]

Motivation and Context

1. Renamed Github to GitHub.
2. Renamed Microsoft.Agents.AI.GithubCopilot to Microsoft.Agents.AI.GitHub.Copilot.

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the Contribution Guidelines
• All unit tests pass, and I have added new tests where possible
• Is this a breaking change? If yes, add "[BREAKING]" prefix to the title of the PR.

[markwallace-microsoft]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
TOTAL	16246	2373	85%

report-only-changed-files is enabled. No files were changed during this commit :)

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
3480	221 💤	0 ❌	0 🔥	1m 5s ⏱️

[Copilot]

Pull request overview

This pull request renames "Github" to "GitHub" across both Python and .NET codebases to use the correct capitalization of the GitHub brand name. This is appropriately marked as a breaking change.

Changes:

• Python: Renamed all GithubCopilot* classes to GitHubCopilot* (Agent, Options, Settings)
• .NET: Renamed namespace from Microsoft.Agents.AI.GithubCopilot to Microsoft.Agents.AI.GitHub.Copilot and updated all related classes
• Updated all documentation, samples, tests, project references, and solution files to reflect the new naming

Reviewed changes

Copilot reviewed 28 out of 31 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
python/samples/getting_started/mcp/agent_as_mcp_server.py	Updated comment to use "GitHub"
python/samples/getting_started/agents/github_copilot/*.py	Updated all sample files with new class names and imports
python/samples/getting_started/agents/github_copilot/README.md	Updated documentation to reference GitHubCopilotAgent
python/packages/github_copilot/tests/test_github_copilot_agent.py	Renamed all test classes and updated imports
python/packages/github_copilot/agent_framework_github_copilot/_settings.py	Renamed GitHubCopilotSettings class
python/packages/github_copilot/agent_framework_github_copilot/_agent.py	Renamed GitHubCopilotAgent and GitHubCopilotOptions
python/packages/github_copilot/agent_framework_github_copilot/init.py	Updated module exports
python/packages/core/agent_framework/github/init.pyi	Updated stub file exports
python/packages/core/agent_framework/github/init.py	Updated lazy import mappings
dotnet/tests/Microsoft.Agents.AI.GitHub.Copilot.UnitTests/*.cs	Updated test class names and namespaces
dotnet/tests/Microsoft.Agents.AI.GitHub.Copilot.UnitTests/*.csproj	Updated project references
dotnet/tests/Microsoft.Agents.AI.GitHub.Copilot.IntegrationTests/*.cs	Updated integration test class names and namespaces
dotnet/tests/Microsoft.Agents.AI.GitHub.Copilot.IntegrationTests/*.csproj	Updated project references
dotnet/src/Microsoft.Agents.AI.GitHub.Copilot/*.cs	Renamed all classes and updated namespace to Microsoft.Agents.AI.GitHub.Copilot
dotnet/src/Microsoft.Agents.AI.GitHub.Copilot/*.csproj	New project file with updated namespace
dotnet/samples/GettingStarted/AgentProviders/README.md	Updated sample reference link
dotnet/samples/GettingStarted/AgentProviders/Agent_With_GithubCopilot/*.csproj	Updated project reference
dotnet/agent-framework-release.slnf	Updated solution filter with new project path
dotnet/agent-framework-dotnet.slnx	Updated solution file with new project paths