Add documentation for dotnet run telemetry in .NET SDK 10

[Copilot]

Fixes #48775

Summary

This PR adds comprehensive documentation for the new dotnet run telemetry feature introduced in .NET SDK 10.0.100 via dotnet/sdk#50793. The telemetry helps drive development and understand usage of file-based apps.

Changes

Data Points Table

Added 10 new telemetry data points to the main table documenting what dotnet run collects:

• Hashed project/file identifier (SHA256)
• Application type (file-based or project-based)
• Number of SDKs, PackageReferences, and ProjectReferences
• Launch profile usage and configuration
• File-based app specific metrics (additional properties, build method used)

New Section: "dotnet run telemetry"

Created a dedicated subsection explaining:

Common telemetry for all dotnet run executions:

• Application type classification
• Hashed identifiers for privacy
• Dependency counts
• Launch profile usage patterns

Additional telemetry for file-based apps only:

• Number of #:property directives
• Build method (MSBuild vs Roslyn compiler)

The documentation clarifies that all identifiers are hashed using SHA256, with file-based apps using the entry point file path and project-based apps using the project file path (or relative path from repository root when available).

Documentation Guidelines

• Updated ms.date to reflect current date
• Followed Microsoft Writing Style Guide conventions
• Used "for example" instead of "e.g."
• Applied proper formatting for code elements and UI text

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add docs for new dotnet run telemetry</issue_title>
<issue_description>### Type of issue

Missing information

Description

In dotnet/sdk#50793 we added feature-based telemetry for dotnet run to help drive development and usage of the file-based apps feature.

We need to document the data we'll be collecting and when it's collected.

[Enter feedback here]

Page URL

https://learn.microsoft.com/en-us/dotnet/core/tools/telemetry

Content source URL

https://github.com/dotnet/docs/blob/main/docs/core/tools/telemetry.md

Document Version Independent Id

50433ae5-4687-fe5f-75ab-a47e1a706777

Platform Id

315d25b4-0ae6-3fff-2eac-19afec16d9c7

Article author

@baronfel

Metadata

• ID: c136055b-bb04-17b6-19b2-42d4610c1a70
• PlatformId: 315d25b4-0ae6-3fff-2eac-19afec16d9c7
• Service: dotnet-fundamentals

Related Issues

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Associated WorkItem - 493975</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #48775

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Internal previews

📄 File	🔗 Preview link
docs/core/tools/telemetry.md	.NET SDK and .NET CLI telemetry

[Copilot]

Pull Request Overview

This PR adds comprehensive documentation for the new dotnet run telemetry feature introduced in .NET SDK 10.0.100. The telemetry helps Microsoft understand usage patterns of file-based applications and drives future development decisions.

• Added 10 new telemetry data points to the main telemetry data table
• Created a dedicated subsection explaining dotnet run telemetry collection
• Updated documentation date to reflect current changes