From 2addb8ec02b5777a767388e28e2a7cac9711ca81 Mon Sep 17 00:00:00 2001
From: Maxim Dolgolyov <maxim.dolgolyov@gmail.com>
Date: Sun, 31 May 2026 12:02:32 +0300
Subject: [PATCH] =?UTF-8?q?fix(dashboard):=20=D0=90=D0=BA=D1=82=D0=B8?=
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- loadActivityWidget показывает блок всегда (пустое состояние рисует
  renderHeatmap), даже при 0 сессий и при ошибке истории.
- .bottom-grid: align-items stretch + height 100% — карточки ряда
  (Активность/Мои сдачи/Испытания) одной высоты.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 frontend/dashboard.html | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/frontend/dashboard.html b/frontend/dashboard.html
index 9e64590..b5e796c 100644
--- a/frontend/dashboard.html
+++ b/frontend/dashboard.html
@@ -154,9 +154,9 @@
       grid-template-columns: repeat(3, 1fr);
       gap: 22px;
       margin-bottom: 22px;
-      align-items: start;
+      align-items: stretch;
     }
-    .bottom-grid > * { margin-bottom: 0; }
+    .bottom-grid > * { margin-bottom: 0; height: 100%; }
 
     .qa-btn {
       display: flex; align-items: center; gap: 8px;
@@ -3309,10 +3309,10 @@
 
     /* ══ WIDGET: Activity heatmap (redesigned) ══════════════════════════ */
     function loadActivityWidget(rows) {
-      _activityRows = rows;
+      _activityRows = rows || [];
       const w = document.getElementById('w-activity');
-      if (!w || !rows || !rows.length) { if (w) w.style.display = 'none'; return; }
-      w.style.display = '';
+      if (!w) return;
+      showWidget('w-activity');   // показываем всегда (пустое состояние рисует renderHeatmap)
       renderHeatmap();
     }
 
@@ -4061,7 +4061,7 @@
         loadActivityWidget(rows);
         loadSubjProgressWidget(rows);
         renderStreakCalendar(rows);
-      } catch {}
+      } catch { loadActivityWidget([]); }
       const heroRow = document.getElementById('hero-row');
       if (heroRow) heroRow.style.display = '';
       loadContinueWidget();