Simplify python-comment-helper demo trigger to natural user phrasing

Add python-comment-helper skill with Google-style docstring documentation pass

Simplify concept-tutor examples to short phrases

Fix HuggingFace Space card color value

Add HuggingFace Space card frontmatter to README

Deepen concept-tutor and repo-concept-explainer demo examples

Add concept-tutor and repo-concept-explainer skills with live demo

Rename and refocus python-science → sci-experiment for data scientists

Rename project to Agentic Skills, remove all AI tool brand references

Add Claude-like demo UI and README for public release

first commit