Archived thought-links

Dated design notes and tracepacks that informed current docs, kept for provenance rather than day-to-day navigation.

Included

• 2026-02-20_qmd-fit-4a-tracepack.md — QMD fit tracepack / research receipt.
• 2026-03-04_context-budget-sidecar-openclaw-token-cost.md — context-budget sidecar exploration receipt.