Added a detailed markdown plan outlining fixes for parent section awareness, sequential tag‑based breakdown, and recursive processing of large sections. Includes implementation details, configuration constants, and updated ingestion logic. This new plan file is located at `.opencode/plans/1774872666261-parent-breakdown-fix.md`.
Added a comprehensive markdown plan (.opencode/plans/1774872124705-glowing-river.md) outlining the migration from LlamaIndex to LangChain.js with LanceDB. Includes updated dependencies, file modification list, and detailed code changes for `ingest.ts` and `agent.ts`. This serves as documentation for the migration process.