Merge pull request #28 from fischerf/release/v0.4.0

Release/v0.4.0

Release v0.3.2

- Gemini Pro/Flash provider (google-genai SDK + custom HTTP)
- ACP transport rewritten using official agent-client-protocol SDK
- Full ACP session lifecycle (load, list, close, fork, resume, set_mode)
- MCP server bridge in ACP sessions
- Docker, Linux Landlock, and Windows Job Object sandboxes
- Distro profiles shipped with the package
- File picker and log viewer in fixed TUI
- aar prompt --layers, configurable timeouts, budget warnings
- Guardrails for autonomous loop
- VSCode integration configuration
- 874 tests passing

release v0.3.0

bump version to 0.2.1

chore: bump version to 0.2.0