feat(viz-platform): implement DMC 2.x component registry (#171)

- Add component_registry.py with version-locked registry loading
- Create dmc_2_5.json with 39 components for DMC 2.5.1/Mantine 7
- Add generate-dmc-registry.py script for future registry generation
- Update dependencies to DMC >=2.0.0 (installs 2.5.1)
- Includes prop validation with typo detection

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

mcp-servers/viz-platform/pyproject.toml

@@ -25,7 +25,7 @@ dependencies = [
     "mcp>=0.9.0",
     "plotly>=5.18.0",
     "dash>=2.14.0",
-    "dash-mantine-components>=0.14.0",
+    "dash-mantine-components>=2.0.0",
     "python-dotenv>=1.0.0",
     "pydantic>=2.5.0",
 ]