Judge export #26

Why

Judges should be able to sort every submission on objective facts and never have to build a spreadsheet themselves.

What to build

• An export-judges subcommand writing a CSV and an xlsx with one row per project and objective columns only: repo URL, evidence tier, contracts, deploys, first deploy time, invocations, failed transactions, has tests, test file count, has CI, README length, README sections, has demo URL, has video URL, AI attribution present and mainnet status. Columns whose data does not exist yet are written empty and documented.
• No subjective scores anywhere.
• docs/judge-export.md documenting every column.

Acceptance criteria

• The files open cleanly in Excel and Google Sheets.
• A test checks the header row against the documented columns.

See CONTRIBUTING.md for conventions.