chore(info): Adding invocation_method and in-flight status_info

[shubham-stepsecurity]

What does this PR do?

Type of change

• Bug fix
• Enhancement
• Documentation

Testing

• Tested on macOS (version: ___)
• Binary runs without errors: ./stepsecurity-dev-machine-guard --verbose
• JSON output is valid: ./stepsecurity-dev-machine-guard --json | python3 -m json.tool
• No secrets or credentials included
• Lint passes: make lint
• Tests pass: make test

Related Issues

[Copilot]

Pull request overview

This PR enhances enterprise telemetry reporting by adding (1) an invocation_method field to distinguish scheduled vs. manual runs and (2) in-flight status_info progress snapshots (phase completions + elapsed time) posted to the run-status endpoint and embedded in the final telemetry payload.

Changes:

• Add invocation-method detection (install vs one_time) and include it in both run-status posts and the final telemetry payload.
• Introduce phase tracking with periodic heartbeats and phase-boundary progress upserts via /telemetry/run-status.
• Add scanner sub-progress hooks (Python/Node) to surface in-phase detail in status_info, plus new unit tests for tracker/hook/shutdown behavior.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
internal/telemetry/telemetry.go	Adds invocation detection, phase tracking, heartbeat progress posting, and payload stamping.
internal/telemetry/telemetry_test.go	Updates uploadToS3 tests for new function signature.
internal/telemetry/run_status.go	Adds runStatusBody, invocation_method, progress posting (status_info), and heartbeat interval constants.
internal/telemetry/run_status_test.go	Updates existing tests for new signature and adds new tests for invocation/progress behavior.
internal/telemetry/progress_hook_test.go	New test validating ProgressHook → tracker detail propagation.
internal/telemetry/phase_tracker.go	New PhaseTracker + RunStatusInfo model for progress snapshots.
internal/telemetry/phase_tracker_test.go	New unit tests covering tracker behavior, copying, and concurrency safety.
internal/telemetry/invocation.go	New invocation-method detection logic across darwin/linux/windows.
internal/telemetry/invocation_test.go	New tests for invocation detection and fileExists helper.
internal/telemetry/heartbeat_shutdown_test.go	New regression test for correct cancel-then-wait heartbeat shutdown pattern.
internal/systemd/systemd.go	Exposes TimerUnitPath for invocation detection.
internal/schtasks/schtasks.go	Adds IsTaskRegistered for Windows invocation detection.
internal/launchd/launchd.go	Exposes launchd plist paths for invocation detection and hardens home-dir resolution.
internal/detector/pythonscan.go	Adds ProgressHook to emit sub-progress from Python global package scanning.
internal/detector/nodescan.go	Adds ProgressHook to emit sub-progress during Node global/project scans.

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