Add viz-platform MCP server structure at mcp-servers/viz-platform/:
- mcp_server/server.py: Main MCP server entry point with async initialization
- mcp_server/config.py: Hybrid config loader with DMC version detection
- mcp_server/dmc_tools.py: Placeholder for DMC validation tools
- pyproject.toml and requirements.txt for dependencies
- tests/ directory structure
Server starts without errors with empty tool list.
Config detects DMC installation status via importlib.metadata.
Closes#170
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
