Enhance monitoring features and UI:

- Add detailed CPU core monitoring option for better performance control
- Update monitoring settings in app configuration
- Improve parallel task execution for resource usage monitoring
- Modify Telegram notification service to skip alerts from svchost processes
- Add "Memory %" column to process table in HTML and update related JavaScript
- Create performance test scripts for API response time evaluation

test-performance.ps1

@@ -0,0 +1,56 @@
+# Performance test script for ResourceUsage API
+Write-Host "Waiting for service to start..." -ForegroundColor Yellow
+Start-Sleep -Seconds 5
+
+Write-Host "Testing API response time..." -ForegroundColor Green
+$times = @()
+$errors = 0
+
+for ($i = 1; $i -le 5; $i++) {
+    $stopwatch = [System.Diagnostics.Stopwatch]::StartNew()
+    try {
+        $response = Invoke-WebRequest -Uri "http://localhost:5000/api/resource/usage" -UseBasicParsing -TimeoutSec 30
+        $stopwatch.Stop()
+        $time = $stopwatch.ElapsedMilliseconds
+        $times += $time
+        Write-Host "Test $i - Response time: ${time}ms - Status: $($response.StatusCode)" -ForegroundColor Cyan
+        
+        # Show first response content for verification
+        if ($i -eq 1) {
+            $jsonContent = $response.Content | ConvertFrom-Json
+            Write-Host "Sample response - CPU Usage: $($jsonContent.CPU.Usage)%" -ForegroundColor White
+        }
+    }
+    catch {
+        $stopwatch.Stop()
+        $errors++
+        Write-Host "Test $i - Error after $($stopwatch.ElapsedMilliseconds)ms: $($_.Exception.Message)" -ForegroundColor Red
+    }
+    
+    if ($i -lt 5) {
+        Start-Sleep -Seconds 2
+    }
+}
+
+if ($times.Count -gt 0) {
+    $avgTime = ($times | Measure-Object -Average).Average
+    $minTime = ($times | Measure-Object -Minimum).Minimum
+    $maxTime = ($times | Measure-Object -Maximum).Maximum
+    
+    Write-Host "`nPerformance Results:" -ForegroundColor Green
+    Write-Host "  Average response time: $([math]::Round($avgTime, 2))ms" -ForegroundColor White
+    Write-Host "  Minimum response time: ${minTime}ms" -ForegroundColor White
+    Write-Host "  Maximum response time: ${maxTime}ms" -ForegroundColor White
+    Write-Host "  Successful requests: $($times.Count)/5" -ForegroundColor White
+    Write-Host "  Failed requests: $errors/5" -ForegroundColor White
+    
+    if ($avgTime -lt 1000) {
+        Write-Host "✅ Performance looks good!" -ForegroundColor Green
+    } elseif ($avgTime -lt 3000) {
+        Write-Host "⚠️  Performance is acceptable but could be better" -ForegroundColor Yellow
+    } else {
+        Write-Host "❌ Performance needs improvement" -ForegroundColor Red
+    }
+} else {
+    Write-Host "❌ All requests failed!" -ForegroundColor Red
+}