📚 Add comprehensive algorithm tutorials

- Add sharp angle detection tutorial (EN/ZH) with complexity analysis
- Add narrow spacing detection tutorial (EN/ZH) with manufacturing constraints
- Add edge intersection detection tutorial (EN/ZH) with geometry validation
- Add range query operations tutorial (EN) with data structure comparison
- Include interactive Python examples and performance benchmarks
- Cover QuadTree, R-tree, Z-order, and hybrid indexing approaches
- Provide real-world EDA applications and optimization techniques

Author: WenyinWei