Added telemetry activity tracking to AddModule, AddPackage, Clean, and ListModules commands using ITelemetryService. Introduced TelemetryCliSessionProvider to enrich telemetry session data and updated service registration to remove the default TelemetrySessionInfoEnricher.

Added ITelemetryService usage to CliService, NewCommand, and UpdateCommand to track command execution and error activities. This enables better monitoring and diagnostics for CLI operations by reporting activity names and relevant metadata to the telemetry system.

Refactored telemetry logic to better handle and enrich solution path information, including moving TelemetryCliSessionProvider, updating activity tracking in commands, and enhancing TelemetrySolutionInfoEnricher to reliably find and set solution paths and IDs. Removed redundant service registrations and improved the order and conditions for telemetry activities.

Removed unused using directives in AbpCliCoreModule and NewCommand for better code clarity. Refactored AddPackageCommand to inline solution and project file retrieval. Enhanced TelemetrySolutionInfoEnricher to support '.slnx' files by mapping them to '.abpsln' if present.

Ensures that the AbpCliExit activity is always logged by moving the telemetry call to a finally block, regardless of whether an exception occurs.

Moved solution path lookup logic from TelemetryCliSessionProvider to ActivityContext via a new TryGetValue method, simplifying property access and reducing duplication.

Introduced SetSolutionPath to ActivityContext for consistent solution path updates. Refactored TelemetrySolutionInfoEnricher to use the new method and improved logic for resolving .abpsln files based on possible extensions.

Moved solutionFile assignment to after telemetry activity tracking and removed passing solutionFile as a telemetry property. This streamlines the activity initialization and improves code clarity.

Cleaned up TelemetryCliSessionProvider.cs by deleting an extraneous blank line at the end of the file.

Introduces a new 'OldCli' property set to true in the telemetry session context to help identify sessions initiated by the old CLI.

Ensures the 'OldCli' flag is set in the AdditionalProperties dictionary within the telemetry context, creating the dictionary if it does not exist. This provides consistent telemetry data for identifying CLI usage.

Introduces NullTelemetryService to provide a no-op implementation of ITelemetryService. Updates AbpCliCoreModule to conditionally configure telemetry services based on the ABP_STUDIO_ENABLE_TELEMETRY environment variable.