Expand Python module: deep content for all 10 modules with project templates, PCA/regression from scratch, FastAPI, Docker, Numba, Optuna

Expand Python module: deep content enhancement for all 10 modules - theory, code examples, interview questions

Refactor Python module: split monolithic index.html into clean index.html + app.js architecture (matching GenAI pattern)

Fix Python module navigation: dashboard now hides when cards are clicked

Add Python for Data Science & AI Masterclass module with 10 topics