Add /api/data JSON endpoint (3 tracks incl. downstream) + CORS

Intro prose: cover Track 1 (predictive tasks) + the generative tasks 2a/2b

Reorder tabs: Predictive Tasks (Track 1) leftmost + default

Add Track 1 (Outcome Prediction) tab

Add Track 1 (Outcome Prediction) tab

Add Track 1 (Outcome Prediction) tab

Add Track 1 (Outcome Prediction) tab

Add Fallback rate column (from meta.json) second-from-right to both tables

Add read-only /api/data JSON endpoint (+ CORS) for the website mirror

Revert Space to pre-change live-compute leaderboard (state b49e5fb685)

Update leaderboard to latest paper tables

Add Submit-a-model CTA pill + how-to-submit blurb (links to leaderboard dataset + guide)

Replace native title tooltips with a styled custom hover tooltip (reliable, unclipped)

Add per-column hover tooltips + full metric legends below each table

Open external header links (Code/MyHeartCounts/brand) in a new tab (iframe-safe)

Leaderboard UI: segmented track tabs, gold/silver/bronze rank badges, default sort by rank

Rename forecasting section to Track 2b; Toto display names recompute from updated sidecars

Add Track 3 (forecasting) leaderboard section: live skill/rank/fair-skill vs seasonal_naive; pin openmhc@991caf5

Fix link affordance glyph: Python octal-escape mangled \2197 into a control char

Link methods to their HF model pages; add Models pill

Let the description span full content width (drop lede max-width)

Type column: checkbox-dropdown filter (multi-select), not sortable; remove chip row

Sortable interactive table (click headers) + keep type filter

Paper-style per-column blue heatmap for numbers (incl. rank) + bold best-in-column

Move Submitter column to the far right of the table

Update Track 2a description (two-part imputation)

Imputation sub-tracks (single-day/long-context) + paper types + type filters

Read method name/type/submitter from dataset sidecars; add Submitter column

Wordmark: OpenMHC next to the logo

Add Paper pill (coming soon)

Pills: Dataset coming-soon, drop benchmark-site, link main MyHeartCounts site

Use the real MyHeartCounts heart logo in the wordmark + favicon

Restyle leaderboard page to match the public OpenMHC site (light theme, red accent)

Replace JSON API with self-rendering imputation leaderboard (computed live from substrate)

Sync from website repo @ 54e38ed7

Rename MHC-Bench → Open-MHC; align with paper title

Bring up FastAPI leaderboard backend