chore(telemetry): include repoId and headCommitHash in repo telemetry for all users

[zhichli]

https://github.com/microsoft/vscode-internalbacklog/issues/6584

[Copilot]

Pull request overview

This PR updates the repository telemetry system to send basic repository information (repoId and headCommitHash) to all users while continuing to send detailed information (including remoteUrl and diffsJSON) only to internal users. This change improves telemetry coverage by collecting high-level repository context from all users while maintaining privacy by restricting detailed code diff data to internal Microsoft staff.

Changes:

• Modified RepoInfoTelemetry to call both sendMSFTTelemetryEvent (for all users) and sendInternalMSFTTelemetryEvent (for internal users only)
• Removed the ICopilotTokenStore dependency from RepoInfoTelemetry constructor since internal user filtering now happens within the telemetry service itself
• Updated all test cases to reflect the new dual-telemetry approach and removed copilotTokenStore parameter from all test instantiations

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/extension/prompt/node/repoInfoTelemetry.ts	Removed ICopilotTokenStore dependency, added dual telemetry calls (external for all users with limited data, internal for full data), and updated repoId property
src/extension/prompt/node/test/repoInfoTelemetry.spec.ts	Added mock for sendMSFTTelemetryEvent, updated test expectations to verify both telemetry methods are called, removed copilotTokenStore parameter from all RepoInfoTelemetry instantiations