Add dashboard pain chart and version footer

assets/css/app.css

@@ -244,6 +244,26 @@ button:disabled {
     gap: 1rem;
 }
 
+.site-footer {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 0.9rem;
+    margin-top: auto;
+    padding: 0.9rem 1.1rem;
+    border-radius: var(--radius-lg);
+}
+
+.site-footer__link {
+    color: var(--muted);
+    font-size: 0.92rem;
+    transition: color 180ms ease, opacity 180ms ease;
+}
+
+.site-footer__link:hover {
+    color: var(--text);
+}
+
 .topbar {
     display: flex;
     justify-content: space-between;
@@ -1500,6 +1520,10 @@ input[type="range"] {
         padding-bottom: calc(6.8rem + env(safe-area-inset-bottom));
     }
 
+    .site-footer {
+        margin-bottom: 0.5rem;
+    }
+
     .bar-chart {
         overflow-x: auto;
         padding-bottom: 0.4rem;
@@ -1580,4 +1604,10 @@ input[type="range"] {
     .mobile-nav a span {
         font-size: 0.72rem;
     }
+
+    .site-footer {
+        flex-direction: column;
+        align-items: flex-start;
+        gap: 0.4rem;
+    }
 }