feat: update welcome page and fix handle error

src/pages/WelcomePage.scss

@@ -803,3 +803,79 @@
     opacity: 1;
   }
 }
+
+
+.brute-force-progress {
+  margin-top: 16px;
+  padding: 14px 16px;
+  background: var(--bg-tertiary);
+  border: 1px solid var(--border-color);
+  border-radius: 12px;
+  animation: slideUp 0.3s ease;
+
+  .status-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 10px;
+
+    .status-text {
+      font-size: 13px;
+      color: var(--text-primary);
+      font-weight: 500;
+      margin: 0;
+      animation: pulse 2s ease-in-out infinite;
+    }
+
+    .percent {
+      font-size: 14px;
+      color: var(--primary);
+      font-weight: 700;
+      font-family: var(--font-mono);
+    }
+  }
+
+  .progress-bar-container {
+    width: 100%;
+    height: 8px;
+    background: var(--bg-primary);
+    border-radius: 4px;
+    overflow: hidden;
+    border: 1px solid var(--border-color);
+    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
+
+    .fill {
+      height: 100%;
+      background: linear-gradient(90deg, var(--primary) 0%, color-mix(in srgb, var(--primary) 60%, white) 100%);
+      border-radius: 4px;
+      transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+      position: relative;
+
+      &::after {
+        content: '';
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        bottom: 0;
+        background: linear-gradient(
+                        90deg,
+                        transparent,
+                        rgba(255, 255, 255, 0.3),
+                        transparent
+        );
+        animation: progress-shimmer 1.5s infinite linear;
+      }
+    }
+  }
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.7; }
+}
+
+@keyframes progress-shimmer {
+  0% { transform: translateX(-100%); }
+  100% { transform: translateX(100%); }
+}