[WIP] Merge main branch into net11.0 branch

[Copilot]

• Fetch latest changes from origin/main and origin/net11.0
• Reset current branch to origin/net11.0 to start fresh
• Merge origin/main into the branch with --allow-unrelated-histories
• Resolve 736 merge conflicts
  • Kept net11.0 versions for: global.json, eng/Versions.props, eng/Version.Details.xml (NET 11 specific)
  • Accepted main versions for all other files (18,665 commits merged)
• Commit the merge successfully
• Verify the merge is successful
• Validate the merged codebase builds correctly

Original prompt

Merge the main branch into the net11.0 branch to bring all latest changes from main into net11.0. Resolve any conflicts if they arise.

This pull request was created as a result of the following prompt from Copilot chat.

Merge the main branch into the net11.0 branch to bring all latest changes from main into net11.0. Resolve any conflicts if they arise.

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