feat: 更新检查更新按钮的加载状态和通知功能，增加工具提示

ccw/src/templates/dashboard-js/components/version-check.js

@@ -55,26 +55,74 @@ function toggleAutoUpdate() {
 async function checkForUpdatesNow() {
   const btn = document.getElementById('checkUpdateNow');
   if (btn) {
-    // Add loading animation
+    // Add loading state - change button color and animate icon
-    btn.classList.add('animate-spin');
+    btn.classList.add('checking');
     btn.disabled = true;
   }
 
+  // Show checking notification
+  console.log('[Version Check] Starting update check...');
+  if (typeof addGlobalNotification === 'function') {
+    addGlobalNotification('info', 'Checking for updates...', 'Please wait', 'version-check');
+  } else {
+    console.warn('[Version Check] addGlobalNotification is not available');
+  }
+
   // Force check regardless of toggle state
   const originalState = autoUpdateEnabled;
   autoUpdateEnabled = true;
 
   try {
-    await checkForUpdates();
+    const res = await fetch('/api/version-check');
-    addGlobalNotification('success', 'Update check complete', 'Checked for latest version', 'version-check');
+
+    if (!res.ok) {
+      throw new Error('Failed to fetch version information');
+    }
+
+    const data = await res.json();
+    versionCheckData = data;
+    console.log('[Version Check] Result:', data);
+
+    if (data.hasUpdate) {
+      // New version available
+      console.log('[Version Check] Update available:', data.latestVersion);
+      showUpdateBanner(data);
+      if (typeof addGlobalNotification === 'function') {
+        addGlobalNotification(
+          'success',
+          'Update Available!',
+          `New version ${data.latestVersion} is available (current: ${data.currentVersion})`,
+          'version-check'
+        );
+      }
+    } else {
+      // Already up to date
+      console.log('[Version Check] Already up to date:', data.currentVersion);
+      if (typeof addGlobalNotification === 'function') {
+        addGlobalNotification(
+          'success',
+          'You\'re up to date!',
+          `Current version ${data.currentVersion} is the latest`,
+          'version-check'
+        );
+      }
+    }
   } catch (err) {
-    addGlobalNotification('error', 'Update check failed', err.message, 'version-check');
+    console.error('[Version Check] Error:', err);
+    if (typeof addGlobalNotification === 'function') {
+      addGlobalNotification(
+        'error',
+        'Update check failed',
+        err.message || 'Unable to check for updates',
+        'version-check'
+      );
+    }
   } finally {
     // Restore original state
     autoUpdateEnabled = originalState;
 
     if (btn) {
-      btn.classList.remove('animate-spin');
+      btn.classList.remove('checking');
       btn.disabled = false;
     }
   }

ccw/src/templates/dashboard.html

@@ -234,6 +234,51 @@
       animation: spin 1s linear infinite;
     }
 
+    /* Custom Tooltip (bottom position) */
+    .tooltip-bottom {
+      position: relative;
+    }
+    .tooltip-bottom:hover::after {
+      content: attr(data-tooltip);
+      position: absolute;
+      top: calc(100% + 8px);
+      left: 50%;
+      transform: translateX(-50%);
+      padding: 6px 10px;
+      background-color: hsl(var(--foreground));
+      color: hsl(var(--background));
+      font-size: 12px;
+      white-space: nowrap;
+      border-radius: 4px;
+      z-index: 1000;
+      pointer-events: none;
+    }
+    .tooltip-bottom:hover::before {
+      content: "";
+      position: absolute;
+      top: calc(100% + 2px);
+      left: 50%;
+      transform: translateX(-50%);
+      border: 6px solid transparent;
+      border-bottom-color: hsl(var(--foreground));
+      z-index: 1001;
+      pointer-events: none;
+    }
+
+    /* Check Update Button Loading State */
+    #checkUpdateNow.checking {
+      background-color: hsl(var(--primary));
+      color: hsl(var(--primary-foreground));
+      pointer-events: none;
+    }
+    #checkUpdateNow.checking .check-icon-default {
+      display: none;
+    }
+    #checkUpdateNow.checking .check-icon-loading {
+      display: block;
+      animation: spin 1s linear infinite;
+    }
+
     /* Auto-Update Toggle Switch */
     .auto-update-switch {
       position: relative;
@@ -345,15 +390,20 @@
           <!-- Auto-Update Controls -->
           <div class="flex items-center gap-2 border-l border-border pl-2">
             <!-- Check Now Button -->
-            <button class="p-1.5 text-muted-foreground hover:text-foreground hover:bg-hover rounded" id="checkUpdateNow" data-i18n-title="header.checkUpdateNow" title="Check for updates now" onclick="checkForUpdatesNow()">
+            <button class="tooltip-bottom p-1.5 text-muted-foreground hover:text-foreground hover:bg-hover rounded" id="checkUpdateNow" data-tooltip="Check for updates now" onclick="checkForUpdatesNow()">
-              <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+              <!-- Download Icon (default) -->
+              <svg class="check-icon-default" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                 <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
                 <polyline points="7 10 12 15 17 10"/>
                 <line x1="12" y1="15" x2="12" y2="3"/>
               </svg>
+              <!-- Loading Icon (checking state) -->
+              <svg class="check-icon-loading hidden" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                <path d="M21 12a9 9 0 1 1-6.219-8.56"/>
+              </svg>
             </button>
             <!-- Auto-Update Toggle Switch -->
-            <label class="auto-update-switch" data-i18n-title="header.autoUpdate" title="Auto-update check">
+            <label class="tooltip-bottom auto-update-switch" data-tooltip="Auto-update">
               <input type="checkbox" id="autoUpdateToggle" onchange="toggleAutoUpdate()" checked>
               <span class="auto-update-slider"></span>
             </label>