feat(core): implement mkdocs, fix linting, and achieve 100% test cove…

[PyDevDeep]

Goal

Achieve 100% test coverage for remaining integration services, add WooCommerce UTM stats, fix Pyright type checking issues, and initialize MkDocs for project documentation.

Changes

• Tests: Achieved 100% test coverage in telegram_service.py, woo_service.py, woo_smart_parser.py, guardrails_service.py and core schemas. Fixed missing argument linting errors.
• WooCommerce: Updated WooService to parse UTM tags and order statuses for daily analytics.
• Docs: Added MkDocs structure and initial Markdown documentation.
• Core: Updated main.py and chat.py schema for new capabilities.
• Linting: Fixed private usage reportPrivateUsage false positives in test files.

How to Test

1. Run poetry run pytest --cov and verify 100% test coverage.
2. Run poetry run pre-commit run --all-files and verify no failures.
3. Run poetry run mkdocs serve and check if the documentation site works properly.