openivm-spark

Make docs/architecture/ render correctly on GitHub: rewrite backtick-wrapped LaTeX / math-Unicode into inline $...$ math (Unicode→LaTeX), escape pipes in table math, then run mdformat-gfm with all math protected so $$…$$ and mermaid/ASCII fences are never mangled. Pinned Python tooling in a venv; idempotent. Auto-commit + push on non-main.

Spin up ivm-bench against duckdb-openivm + spark-openivm at the pinned commits, gather per-MV / per-step IVM-effectiveness telemetry, and produce a root-cause report under .research/ that recommends where in {openivm, lpts, openivm-spark} the fixes belong.