v0.6.0 — fourth demo and config-change investigation

This is a small portfolio milestone release for telemetry-lab.

What changed

• Added config-change-investigation-demo as a fourth local, file-based demo.
• The new demo stays fully deterministic: risky config-change rules, bounded evidence correlation, committed artifacts, and a short investigation report.
• The repository now reads as a four-demo portfolio repo instead of a three-demo repo with config-change investigation still treated as future work.

Included artifacts

The new demo commits reviewer-facing outputs such as:

• change_events_normalized.json
• investigation_hits.json
• investigation_summary.json
• investigation_report.md

Boundaries

• No new AI stage
• No autonomous response
• No realtime ingestion or service deployment
• Still scoped as a small review-oriented prototype, not a production system

Validation

• python -m telemetry_window_demo.cli run-config-change-demo
• python -m pytest
• Full test suite: 51 passed