fix: restore bold text in leaderboard intro

DOI -> concept DOI (always-latest, resolves to v0.3)

v0.3: strict task-completion grader; refresh leaderboard + headline

v0.3: strict task-completion grader; refresh leaderboard + headline

Correct leaderboard: separate populations, exclude provider errors, fix ceiling claim

Correct leaderboard: separate populations, exclude provider errors, fix ceiling claim

Leaderboard: force dark text in shaded family cells (readable in dark mode)

Remove gradio files (static Space)

Remove gradio files (static Space)

Convert Space to static leaderboard (zero CPU quota)

Convert Space to static leaderboard (zero CPU quota)

Leaderboard Space config (shorten short_description)

Leaderboard Space: 21-system SRC table + IBSC intro

Leaderboard Space: 21-system SRC table + IBSC intro

Leaderboard Space: 21-system SRC table + IBSC intro

signalbench interactive leaderboard (static)

initial commit