feat: add version check functionality with UI integration, status updates, and internationalization support

styles.css

@@ -836,6 +836,7 @@ body {
     align-items: center;
     gap: 12px;
     max-width: max-content;
+    flex-shrink: 0;
 }
 
 .top-navbar-brand-logo {
@@ -849,8 +850,70 @@ body {
     font-size: 18px;
     font-weight: 600;
     color: var(--text-primary);
+    overflow: visible;
+    text-overflow: initial;
+    white-space: nowrap;
+    line-height: 1;
+}
+
+.top-navbar-brand-toggle {
+    display: inline-flex;
+    align-items: center;
+    background: transparent;
+    border: none;
+    padding: 0;
+    margin: 0;
+    cursor: pointer;
+    font: inherit;
+    color: var(--text-primary);
+    height: 32px;
+}
+
+.top-navbar-brand-toggle:focus-visible {
+    outline: 2px solid var(--primary-color);
+    outline-offset: 4px;
+    border-radius: 8px;
+}
+
+.brand-texts {
+    position: relative;
+    display: inline-flex;
+    align-items: center;
     overflow: hidden;
-    text-overflow: ellipsis;
+    white-space: nowrap;
+    transition: width 0.45s ease;
+}
+
+.brand-text {
+    display: block;
+    white-space: nowrap;
+    transition: opacity 0.35s ease;
+    line-height: 1.2;
+}
+
+.brand-text-short {
+    position: absolute;
+    left: 0;
+    top: 0;
+    opacity: 0;
+}
+
+.top-navbar-brand-toggle.expanded .brand-text-full {
+    opacity: 1;
+}
+
+.top-navbar-brand-toggle.expanded .brand-text-short {
+    opacity: 0;
+}
+
+.top-navbar-brand-toggle.collapsed .brand-text-full {
+    opacity: 0;
+    position: absolute;
+}
+
+.top-navbar-brand-toggle.collapsed .brand-text-short {
+    opacity: 1;
+    position: relative;
 }
 
 .top-navbar-actions {
@@ -2368,6 +2431,65 @@ input:checked+.slider:before {
     color: var(--text-tertiary);
 }
 
+.version-check {
+    display: flex;
+    flex-direction: column;
+    gap: 12px;
+}
+
+.version-check-rows {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
+    gap: 12px;
+}
+
+.version-check-row {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 12px 14px;
+    border-radius: 8px;
+    background: var(--bg-quaternary);
+    border: 1px solid var(--border-primary);
+}
+
+.version-check-value {
+    font-weight: 600;
+    color: var(--text-tertiary);
+}
+
+.version-check-actions {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    flex-wrap: wrap;
+}
+
+.version-check-result {
+    font-weight: 600;
+    color: var(--text-secondary);
+}
+
+.version-check-result.success {
+    color: #10b981;
+}
+
+.version-check-result.warning {
+    color: #f59e0b;
+}
+
+.version-check-result.error {
+    color: #ef4444;
+}
+
+.version-check-result.info {
+    color: var(--text-secondary);
+}
+
+.version-check-result.muted {
+    color: var(--text-quaternary);
+}
+
 /* JSON模态框 */
 .json-modal {
     position: fixed;