This PR adds filtering of git repository properties from telemetry data and includes git info in telemetry properties, with comprehensive tests.
Behavior:
PostHogTelemetryClient now filters out repositoryUrl, repositoryName, and defaultBranch from telemetry events.
ClineProvider includes git repository information in telemetry properties, filtered by clients.
Functions:
Added isPropertyCapturable() in BaseTelemetryClient to allow property filtering.
Implemented getGitRepositoryInfo() and getWorkspaceGitInfo() in git.ts to extract git info.
Tests:
Added tests for isPropertyCapturable() in PostHogTelemetryClient.test.ts.
Added tests for getGitRepositoryInfo() and getWorkspaceGitInfo() in git.spec.ts.
