leaderboard: serve renders from the public bucket, not the dataset proxy

leaderboard: open reports in new tab

add visual Gallery tab (top-10 verified, sticky GT, fixture picker)

leaderboard: drop silent fallback; boot resilient on Hub read failure

leaderboard: log the local-fallback path instead of printing

license: add apache-2.0 header to space modules

admin: bulk promote/demote/delete + admin table loader

leaderboard: format submitted_at as `YYYY-MM-DD HH:MM UTC`; lock tables read-only

leaderboard+app: combined CSV download with validation_status discriminator

app: render reports inline via iframe srcdoc (private-Space safe)

app+leaderboard: link submission_name to a Space-side report proxy

app+leaderboard: detail panel polish (rename link columns, fix broken report links)

app: row-click detail panel below the leaderboard tables

leaderboard: markdown link columns for agent_url, submission, report

app: split Leaderboard into Validated + Unvalidated tables

leaderboard: add load_leaderboard_split() for two-tier viewer

leaderboard: fetch results.jsonl via direct cache-busted HTTPS

leaderboard: render pending / failed score cells with a status tag

leaderboard: handle null score fields on pending / failed rows

submit: write pending row + upload zip on successful validation

refactor: split leaderboard read path into its own module