feat: use hf_agent tool descriptions, hardware flavors, and default env

feat: merge HF Space improvements

rewording

v3 prompt and tool desc rework

integrated hf skills into the prompts

optional deps and main prints

system prompt and github tool desc. update

updated output for find examples

unified ref tag and imporved read_file

find examples tool (repo crawling + fuzzy matching)

github tools updated

ruff

poc github tools