Fix infinite loop in PowerShell script: Rename function to avoid collision

- Rename Test-Connection function to Test-NetworkConnection
- Fix PowerShell function name collision with built-in cmdlet
- Use fully qualified names for PowerShell Test-Connection cmdlet
- Resolves infinite recursion in network verification

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

farmq-install-en.ps1

@@ -85,7 +85,7 @@ function Test-Requirements {
     
     # Check internet connection
     try {
-        Test-Connection "8.8.8.8" -Count 1 -Quiet | Out-Null
+        Microsoft.PowerShell.Management\Test-Connection "8.8.8.8" -Count 1 -Quiet | Out-Null
     }
     catch {
         Write-Warning "Please check your internet connection."
@@ -295,7 +295,7 @@ function Configure-Firewall {
 # ================================
 # Verify Connection
 # ================================
-function Test-Connection {
+function Test-NetworkConnection {
     Write-Status "Verifying network connection..."
     
     Start-Sleep -Seconds 5
@@ -333,7 +333,7 @@ function Test-Connection {
         Write-Status "Testing network connectivity..."
         
         try {
-            Test-Connection "100.64.0.1" -Count 2 -Quiet | Out-Null
+            Microsoft.PowerShell.Management\Test-Connection "100.64.0.1" -Count 2 -Quiet | Out-Null
             Write-Success "FARMQ network ($FarmqNetwork) connection successful!"
         }
         catch {
@@ -433,7 +433,7 @@ function Main {
         
         if ($registerSuccess) {
             Configure-Firewall
-            Test-Connection
+            Test-NetworkConnection
             Complete-Installation
             Show-FinalInfo
         } else {