v0.4.0

Added

• Python logging-based lifecycle logging with CLI-controlled log level and optional log file output.
• Per-run observability.json artifacts with timings, counts, and summary metrics.
• Per-run wind_tunnel_observability.json artifacts for wind tunnel runs.
• A logging and observability guide in docs/observability.md.
• A release-version sync check that keeps pyproject.toml aligned with the latest released section in Chaneglog.md.
• A platform-neutral integration strategy covering HTTP, MCP, multi-agent use, and caching in docs/integration_strategy.md.

Changed

• The CLI now supports --log-level and --log-file.
• The pipeline and wind tunnel now emit run lifecycle logs and save basic observability data.
• The local quality gate now also checks release-version consistency before commit.
• The project strategy, research summary, and product brief now reflect the planned hybrid integration model.