Add GH documentation tools, GIS import, terrain analysis

New Grasshopper tools:
- grasshopper_delete_component: Remove components from canvas
- grasshopper_add_group: Add comment groups around components
- grasshopper_add_scribble: Add text annotations
- grasshopper_rename_component: Rename component nicknames

New GIS/Terrain tools:
- rhino_import_geotiff: Import GeoTIFF as heightfield mesh
- rhino_import_shapefile: Import ESRI Shapefiles
- rhino_import_xyz: Import XYZ point clouds
- rhino_transform_coordinates: Offset/transform coordinates
- rhino_get_bounding_box: Get object bounds
- rhino_create_grid: Create survey grids
- rhino_create_site_section: Generate terrain profiles
- rhino_calculate_area_volume: Calculate cut/fill volumes

Added:
- CLAUDE.md: Project documentation with dev guidelines
- install.bat: Windows installer script
- MeshTerrainHandler.cs: Separate handler for mesh/terrain/GIS

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

install.bat

@@ -0,0 +1,20 @@
+@echo off
+echo Installing RhinoMCP Plugin...
+
+set RHINO_PLUGINS=%APPDATA%\McNeel\Rhinoceros\9.0\Plug-ins\RhinoMCP (1.0.0)
+set SOURCE_DIR=%~dp0src\rhino-plugin\RhinoMCP\bin\Release\net7.0-windows
+
+if not exist "%RHINO_PLUGINS%" (
+    mkdir "%RHINO_PLUGINS%"
+)
+
+echo Copying files to: %RHINO_PLUGINS%
+xcopy /Y /E "%SOURCE_DIR%\*" "%RHINO_PLUGINS%\"
+
+echo.
+echo Installation complete!
+echo.
+echo The plugin will load automatically when Rhino 9 starts.
+echo If Rhino is running, restart it or run: _PlugInManager to load RhinoMCP.dll
+echo.
+pause