fix: Resolve GitHub Actions workflow issues

test: Add caching validation test script

feat: Add comprehensive caching to GitHub Actions workflow

feat: Add basic GitHub Actions CI workflow

fix: Add OpenBLAS dependency for scipy compilation

fix: Add gfortran for scipy compilation

fix: Resolve TA-Lib dependency conflict with freqtrade

fix: Resolve plotly dependency conflict with vectorbt

fix: Resolve torch dependency conflict with NeuralForecast

fix: Return to original directory after TA-Lib installation

fix: Use explicit path for virtual environment creation

fix: Remove unnecessary directory changes that cause errors

fix: Ensure correct working directory for virtual environment creation

fix: Disable parallel compilation for TA-Lib to avoid race conditions

fix: Resolve CircleCI setup issues