Trim README duplication against requirements spec #17
Description
purpose
Make README a concise operator guide and move detailed behavior ownership back to docs/0-requirements.md.
premise
README now repeats architecture and behavior already defined in docs/0-requirements.md after the direct trigger updates.
constraints
- README should keep setup and common run examples.
- Detailed behavioral contracts, metadata fields, and file responsibilities should live in docs/0-requirements.md.
- This change is docs-only.
completion condition
- README is shortened to overview + setup + links.
- Detailed trigger metadata and API behavior are referenced from docs/0-requirements.md instead of duplicated.