Initial commit: Meeting Room v0.1.0

Multi-agent discussion framework:
- Custom/AutoGen/CrewAI backends
- Multi-provider API (role→model binding)
- Tools system (files, web, commands)
- Markdown scenarios with YAML frontmatter
- Workspace init (meeting-room init)
- Session save (--save)

.gitignore

@@ -0,0 +1,9 @@
+__pycache__/
+*.pyc
+.venv/
+*.egg-info/
+dist/
+build/
+.env
+.meeting-room/
+sessions/