docs: update README URLs to point to actual repository

fix: disable unused-ignore mypy errors for cross-env compatibility

fix: resolve mypy type errors in core modules and providers

chore: improve CI/CD with caching, dependabot, and release workflow

feat: transform into AI Engineering Hub portfolio

chore: update pre-commit

feat: migrating to new version of openai api

feat: add astrology reading

feat: add fitness tips

feat: add travel advice

feat: add poem generation

feat: add news summary

chore: clean up code

feat: math problem solver

feat: math problem solver