README (~140 LOC):
- Why this gem exists (4 production needs opencode-ruby alone doesn't cover)
- Install + quickstart (showing GenerateResponseJob wiring Session + Turn)
- 12-constant API table with one-line role descriptions
- Instrumentation + error-reporting adapter setup snippets
- Position against opencode-ruby and Eric Guo's opencode_client
CHANGELOG documents what shipped, runtime deps, and known limitations
(apply_patch artifact drop, gem-side behavioral tests TBD, no Rails
generator yet). LICENSE was auto-generated by Gitea (MIT, 2026
ajaynomics) and is unchanged.
