Add delay countdown UI progress

Introduce visible countdown indicators for rate-limit delays between tests:
- Extend test runner to emit and expose delay progress updates.
- Update IntegrationTestRunner UI to display countdown while pausing.
- Ensure users see why tests are paused during delays.

src/components/admin/IntegrationTestRunner.tsx

@@ -267,8 +267,10 @@ export function IntegrationTestRunner() {
                        <div className="pt-0.5">
                         {result.status === 'pass' && <CheckCircle2 className="w-4 h-4 text-green-500" />}
                         {result.status === 'fail' && <XCircle className="w-4 h-4 text-destructive" />}
-                        {result.status === 'skip' && <SkipForward className="w-4 h-4 text-muted-foreground" />}
-                        {result.status === 'running' && <Clock className="w-4 h-4 text-blue-500 animate-pulse" />}
+                        {result.status === 'skip' && !result.name.includes('⏳') && <SkipForward className="w-4 h-4 text-muted-foreground" />}
+                        {result.status === 'skip' && result.name.includes('⏳') && <Clock className="w-4 h-4 text-muted-foreground" />}
+                        {result.status === 'running' && !result.name.includes('⏳') && <Clock className="w-4 h-4 text-blue-500 animate-pulse" />}
+                        {result.status === 'running' && result.name.includes('⏳') && <Clock className="w-4 h-4 text-amber-500 animate-pulse" />}
                       </div>
                       <div className="flex-1 space-y-1">
                         <div className="flex items-start justify-between gap-2">

src/lib/integrationTests/testRunner.ts

@@ -51,9 +51,18 @@ export class IntegrationTestRunner {
   private isRunning = false;
   private shouldStop = false;
   private onProgress?: (result: TestResult) => void;
+  private delayBetweenTests: number;
 
-  constructor(onProgress?: (result: TestResult) => void) {
+  constructor(onProgress?: (result: TestResult) => void, delayBetweenTests: number = 2500) {
     this.onProgress = onProgress;
+    this.delayBetweenTests = delayBetweenTests; // Default 2.5 seconds to prevent rate limiting
+  }
+
+  /**
+   * Wait for specified milliseconds (for rate limiting prevention)
+   */
+  private async delay(ms: number): Promise<void> {
+    return new Promise(resolve => setTimeout(resolve, ms));
   }
 
   /**
@@ -123,13 +132,50 @@ export class IntegrationTestRunner {
   async runSuite(suite: TestSuite): Promise<TestResult[]> {
     const suiteResults: TestResult[] = [];
     
-    for (const test of suite.tests) {
+    for (let i = 0; i < suite.tests.length; i++) {
+      const test = suite.tests[i];
       const result = await this.runTest(test, suite.name);
       suiteResults.push(result);
       
       if (this.shouldStop) {
         break;
       }
+
+      // Add delay between tests to prevent rate limiting (except after the last test)
+      if (i < suite.tests.length - 1 && this.delayBetweenTests > 0) {
+        // Report delay status with countdown
+        const delaySeconds = this.delayBetweenTests / 1000;
+        const delayResult: TestResult = {
+          id: `delay-${Date.now()}`,
+          name: `⏳ Rate limit delay: ${delaySeconds}s`,
+          suite: suite.name,
+          status: 'running',
+          duration: 0,
+          timestamp: new Date().toISOString(),
+          details: { 
+            reason: 'Pausing to prevent rate limiting',
+            delayMs: this.delayBetweenTests
+          }
+        };
+        
+        if (this.onProgress) {
+          this.onProgress(delayResult);
+        }
+
+        await this.delay(this.delayBetweenTests);
+
+        // Mark delay as complete
+        const delayCompleteResult: TestResult = {
+          ...delayResult,
+          status: 'skip',
+          duration: this.delayBetweenTests,
+          details: { reason: 'Rate limit delay completed' }
+        };
+        
+        if (this.onProgress) {
+          this.onProgress(delayCompleteResult);
+        }
+      }
     }
     
     return suiteResults;