feat: add util.ps1 script for common operations

util.ps1

@@ -0,0 +1,50 @@
+function Write-Pass {
+  param([string]$Message)
+  Write-Host "[PASS] $Message" -ForegroundColor Green
+}
+
+function Write-Fail {
+  param([string]$Message)
+  Write-Host "[FAIL] $Message" -ForegroundColor Red
+  $script:allChecksPassed = $false
+}
+
+function Write-Hint {
+  param([string]$Message)
+  Write-Host "[HINT] $Message" -ForegroundColor Yellow
+}
+
+function Write-Info {
+  param([string]$Message)
+  Write-Host "[INFO] $Message" -ForegroundColor Cyan
+}
+
+function Write-Error {
+  param([string] $Message)
+  Write-Host "[ERROR] $Message" -ForegroundColor Red
+}
+
+
+function Get-LocalBranches {
+  return git for-each-ref --format='%(refname:short)' refs/heads
+}
+
+function Get-MainBranch {
+  $mainBranch = git branch --show-current 2>$null
+  $allBranches = Get-LocalBranches
+  if ($allBranches -contains "main") {
+    $mainBranch = "main"
+  } elseif ($allBranches -contains "master") {
+    $mainBranch = "master"
+  } else {
+    # Get the default branch from git config
+    $mainBranch = git config --get init.defaultBranch
+    if (-not $mainBranch) {
+        # Ultimate fallback: use the first branch
+      $mainBranch = $allBranches | Select-Object -First 1
+      if (-not $mainBranch) { $mainBranch = "main" }
+    }
+  }
+
+  return $mainBranch
+}