* fix(memory): check index.json not .rag dir in setup step 5
* docs(readme): align to real state after memory PRs
* chore(env): remove dead vars from env example
* docs(handoff): add handoff + ADR-037 for memory setup step5 fix
* docs(handoff): set PR number
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Co-authored-by: opencode-agent <agent@opencode.local>
* refactor(memory): rename package second-brain to memory
* refactor(memory): use OpenAI env naming and fix trailing slash
* feat(memory): add chunking with env-configurable size and overlap
* feat(memory): dedup search results by source in top-K
* test(memory): add chunking, batching, dedup, live tests
* docs(memory): update README and project map after rename
* docs(handoff): add handoff and ADR-032 for memory refactor
* docs(handoff): set PR number
* fix(ci): reduce index.py complexity to rank A
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Co-authored-by: opencode-agent <agent@opencode.local>
