Fix critical issues: script loading, entity types, and color properties

- Issue #37: Fix Windows scripts subdirectory not checked
  - Updated executeScript() to use executable_path() from platform.h
  - Scripts now load correctly when working directory differs from executable

- Issue #76: Fix UIEntityCollection returns wrong type
  - Updated UIEntityCollectionIter::next() to check for stored Python object
  - Derived Entity classes now preserve their type when retrieved from collections

- Issue #9: Recreate RenderTexture when resized (already fixed)
  - Confirmed RenderTexture recreation already implemented in set_size() and set_float_member()
  - Uses 1.5x padding and 4096 max size limit

- Issue #79: Fix Color r, g, b, a properties return None
  - Implemented get_member() and set_member() in PyColor.cpp
  - Color component properties now work correctly with proper validation

- Additional fix: Grid.at() method signature
  - Changed from METH_O to METH_VARARGS to accept two arguments

All fixes include comprehensive tests to verify functionality.

closes #37, closes #76, closes #9, closes #79

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

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

clean.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# Clean script for McRogueFace - removes build artifacts
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+echo -e "${YELLOW}Cleaning McRogueFace build artifacts...${NC}"
+
+# Remove build directory
+if [ -d "build" ]; then
+    echo "Removing build directory..."
+    rm -rf build
+fi
+
+# Remove CMake artifacts from project root
+echo "Removing CMake artifacts from project root..."
+rm -f CMakeCache.txt
+rm -f cmake_install.cmake
+rm -f Makefile
+rm -rf CMakeFiles
+
+# Remove compiled executable from project root
+rm -f mcrogueface
+
+# Remove any test artifacts
+rm -f test_script.py
+rm -rf test_venv
+rm -f python3  # symlink
+
+echo -e "${GREEN}Clean complete!${NC}"