Home: declutter (keep hero, board, heatmap)

- drop the history widget: the status board already groups the same
  shows by state; full list stays at ?history
- 6 stat cards + top-3 -> one muted line (watch time, eps, active
  days, streak, on hold) with 'see all ->' to ?stats
- section headers now small uppercase muted labels so the hero is
  the only loud element (page h2s unaffected)
- heatmap sits in a rounded card panel

static/app.js

@@ -168,29 +168,22 @@ function showHome() {
   const cont = shows.filter(x => histClass(x) === "watching").slice(0, 6);
   const hold = shows.filter(x => histClass(x) === "hold").slice(0, 4);
   const done = shows.filter(x => histClass(x) === "done").slice(0, 6);
-  showSec("Continue watching", cont, [link("stats \u2192", "?stats"),
-                                      link("history \u2192", "?history")]);
+  showSec("Continue watching", cont, [link("history \u2192", "?history")]);
   showSec("On hold", hold, hold.length ? [link("history \u2192", "?history")] : []);
   showSec("Recently finished", done, done.length ? [link("history \u2192", "?history")] : []);
-  // 5. stats widget (compact, drill-down to ?stats)
-  const sw = el("div", null);
+  // 5. stats line (compact; full breakdown at ?stats)
   const sh = el("div", "sec-head");
-  sh.append(el("h2", null, "Stats \u00b7 30d"), link("see all \u2192", "?stats"));
-  const load = el("p", "muted", "loading\u2026");
-  sw.append(sh, load);
-  main.append(sw);
+  sh.append(el("h2", null, "Stats \u00b7 30d"), link("see all \u2192", "?stats"),
+            link("history \u2192", "?history"));
+  const sl = el("div", "muted", "loading\u2026");
+  main.append(sh, sl);
   api("/api/stats?days=30").then(d => {
-    load.remove();
-    sw.append(statsCards(d));
-    const ta = topAnime(d, 3);
-    if (ta) sw.append(ta);
-  }).catch(() => load.remove());
+    sl.textContent = `${fmtMin(d.watch_minutes)} watched \u00b7 ${d.episodes.started} eps` +
+      ` (${d.episodes.completed} finished) \u00b7 ${d.days_active} active days \u00b7` +
+      ` best streak ${d.best_streak}d \u00b7 ${d.on_hold} on hold`;
+  }).catch(() => sl.remove());
   // 5b. watch-time heatmap (past year, shared with ?stats)
   main.append(heatSection());
-  // 6. history widget (data already loaded, capped at 6)
-  const hh = el("div", "sec-head");
-  hh.append(el("h2", null, "History"), link(`all ${history.length} \u2192`, "?history"));
-  main.append(hh, ...histBoard(history, 6));
 }
 
 // ---------- search ----------