v2026.3.2

What's Changed

• Agent harness: AGENTS.md, bin/check and bin/t, Ruff 0.17.1 by @bencap in #926
• ci: move linked issues across the backlog board from PR events by @bencap in #936
• refactor(db): squash the migration history into a 2026.3.0 baseline by @bencap in #938
• chore(deps): security updates for certifi, fsspec and Mako by @bencap in #942
• perf(export): page score set downloads by index-only id selection by @bencap in #941
• feat: store API keys as hashes by @bencap in #943
• Add except pd.errors.ParserError for uploading malformed CSV files and add some related tests by @EstelleDa in #925
• test: clone test databases from a template and run tests in parallel by @bencap in #947

Full Changelog: v2026.3.1...v2026.3.2