Refactor scraper to async PC component scraper with parallel execution

- Convert from keyboard-only scraper to multi-component PC parts scraper
- Implement async/await pattern with AsyncClient from scrapegraph-py
- Add parallel page scraping within each component using asyncio.gather()
- Support 8 PC component categories: CPU, GPU, RAM, Motherboard, SSD, PSU, Case, CPU Cooler
- Scrape 10 pages per component (80 total pages) with parallelization
- Add component-specific URL generation and categorization
- Update Product objects with component_type in specifications
- Enhance statistics tracking per component
- Update queries to reflect PC component dataset

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

Co-Authored-By: Claude <[email protected]>

Author: lurenss