$f = "e:\workspace\openclaw-voc-skill\voc\asin-sales-volume\api-config.json"
$c1 = Get-Content $f -Raw -Encoding UTF8
$c2 = [System.IO.File]::ReadAllText($f, [System.Text.Encoding]::UTF8)

Write-Host "GC null: $($null -eq $c1)"
Write-Host "RT null: $($null -eq $c2)"
Write-Host "GC len: $($c1.Length)"
Write-Host "RT len: $($c2.Length)"

$token = "tokenConfig"
Write-Host "GC IndexOf: $($c1.IndexOf($token))"
Write-Host "RT IndexOf: $($c2.IndexOf($token))"

# Show first 200 chars raw bytes around the expected position
$bytes = [System.IO.File]::ReadAllBytes($f)
Write-Host "File byte count: $($bytes.Length)"
# Show bytes 2000-2010 (rough position of "tokenConfig" based on line ~99)
$near = $bytes[2900..2950]
Write-Host "Bytes near pos 2900: $($near -join ' ')"

# Check with quotes
$token2 = '"tokenConfig"'
Write-Host "IndexOf with quotes: $($c1.IndexOf($token2))"

# Show 10 chars around position 1972
Write-Host "Chars 1965-1995: $(($c1[1965..1995] | ForEach-Object { [int]$_ }) -join ' ')"
Write-Host "String around: $($c1.Substring(1965, 30))"