Clean repo and add professional README

docs: Update all project documentation for Organizer module

feat: Add comprehensive Organizer module with PARA method integration - New filesystem_client.py: BFS scanning with smart filtering and progress bars - New system_mapper.py: Application and plugin mapping via system_profiler - New report_generator.py: Multi-format report generation (JSON, HTML, Markdown) - Enhanced main.py: New 'organizer audit' command with rich CLI interface - Updated requirements.txt: Added tqdm dependency for progress indicators - Updated README.md: Comprehensive documentation for Organizer features - Updated tasks.md: Documented Phase 5 completion with all deliverables

chore: remove notion_contacts.json from repo and add to .gitignore

chore: add credentials directory to .gitignore and remove sensitive files

chore: remove exposed credentials files immediately

feat: Create script to fetch all Notion contacts