Embed default registration key so irm | iex works without prompting

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public_html/agent/install-windows.ps1

@@ -11,7 +11,7 @@
 
 param(
     [string]$JarvisUrl = "https://jarvis.orbishosting.com",
-    [string]$Key       = "",
+    [string]$Key       = "f846a9aaf7ce9a61742c63c87c4186052a71d2a580c65518",
     [string]$AgentName = $env:COMPUTERNAME.ToLower()
 )
 
@@ -37,7 +37,6 @@ if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdenti
 
 # ── Prompt if not provided ─────────────────────────────────────────────────────
 $JarvisUrl = $JarvisUrl.TrimEnd("/")
-if (-not $Key) { $Key = Read-Host "Enter registration key" }
 
 # ── Find or install Python 3 (system-wide so LocalSystem service can reach it) ─
 Write-Host "[1/6] Checking for Python 3..." -ForegroundColor Cyan