Update projects to target net10

[hallipr]

What does this PR do?

• Update TargetFramework in directory.build.props to net10.0
• Update framework dependency package versions to the 10.0 series

GitHub issue number?

Closes #1198

Pre-merge Checklist

• Required for All PRs
  • Read contribution guidelines
  • PR title clearly describes the change
  • Commit history is clean with descriptive messages (cleanup guide)
  • Added comprehensive tests for new/modified functionality
  • Updated servers/Azure.Mcp.Server/CHANGELOG.md and/or servers/Fabric.Mcp.Server/CHANGELOG.md for product changes (features, bug fixes, UI/UX, updated dependencies)
• For MCP tool changes:
  • One tool per PR: This PR adds or modifies only one MCP tool for faster review cycles
  • Updated servers/Azure.Mcp.Server/README.md and/or servers/Fabric.Mcp.Server/README.md documentation
  • Validate README.md changes using script at eng/scripts/Process-PackageReadMe.ps1. See Package README
  • Updated command list in /servers/Azure.Mcp.Server/docs/azmcp-commands.md and/or /docs/fabric-commands.md
  • Run .\eng\scripts\Update-AzCommandsMetadata.ps1 to update tool metadata in azmcp-commands.md (required for CI)
  • For new or modified tool descriptions, ran ToolDescriptionEvaluator and obtained a score of 0.4 or more and a top 3 ranking for all related test prompts
  • For tools with new names, including new tools or renamed tools, update consolidated-tools.json
  • For new tools associated with Azure services or publicly available tools/APIs/products, add URL to documentation in the PR description
• Extra steps for Azure MCP Server tool changes:
  • Updated test prompts in /servers/Azure.Mcp.Server/docs/e2eTestPrompts.md
  • 👉 For Community (non-Microsoft team member) PRs:
    • Security review: Reviewed code for security vulnerabilities, malicious code, or suspicious activities before running tests (crypto mining, spam, data exfiltration, etc.)
    • Manual tests run: added comment /azp run mcp - pullrequest - live to run Live Test Pipeline

[Copilot]

Pull request overview

This PR migrates the project from .NET 9 to .NET 10 by updating the target framework and all related dependencies.

Changes:

• Updated TargetFramework from net9.0 to net10.0 in Directory.Build.props
• Updated framework-dependent package versions to the 10.0/10.1 series in Directory.Packages.props
• Removed the System.Linq.AsyncEnumerable package reference (now part of BCL)
• Updated all documentation, configuration files, and scripts to reference net10.0 instead of net9.0
• Improved test robustness by using AppContext.BaseDirectory instead of hardcoded paths

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Directory.Build.props	Updated TargetFramework from net9.0 to net10.0
Directory.Packages.props	Updated package versions to 10.x series; removed System.Linq.AsyncEnumerable
core/Azure.Mcp.Core/src/Azure.Mcp.Core.csproj	Removed System.Linq.AsyncEnumerable package reference
NOTICE.txt	Removed license entry for System.Linq.AsyncEnumerable
servers/Azure.Mcp.Server/tests/Azure.Mcp.Server.UnitTests/Infrastructure/CommandMetadataSyncTests.cs	Improved path resolution using AppContext.BaseDirectory
eng/scripts/Update-AzCommandsMetadata.ps1	Updated default path from net9.0 to net10.0
servers/Azure.Mcp.Server/TROUBLESHOOTING.md	Updated all executable paths from net9.0 to net10.0
servers/Fabric.Mcp.Server/TROUBLESHOOTING.md	Updated chmod command path from net9.0 to net10.0
servers/Azure.Mcp.Server/docs/new-command.md	Updated TargetFramework and command paths from net9.0 to net10.0
core/Azure.Mcp.Core/src/Areas/Server/Commands/README.md	Updated example command paths from net9.0 to net10.0
CONTRIBUTING.md	Updated all example paths and configurations from net9.0 to net10.0
AGENTS.md	Updated mcp.json example configuration from net9.0 to net10.0
.vscode/launch.json	Updated all debug configuration program paths from net9.0 to net10.0