feat: Remove outdated documentation files and update SSL certificate paths in installer scripts

myp_installer.ps1

@@ -476,8 +476,8 @@ function Show-SSLStatus {
     Show-Header "SSL-Zertifikat-Status"
     
     $certPaths = @(
-        "backend\instance\ssl\myp.crt",
-        "backend\instance\ssl\myp.key",
+        "backend\app\certs\myp.crt",
+        "backend\app\certs\myp.key",
         "frontend\ssl\myp.crt",
         "frontend\ssl\myp.key"
     )
@@ -610,7 +610,7 @@ function Create-SSLCertificates {
     Show-Header "SSL-Zertifikat-Generator"
     
     # Parameter definieren
-    $certDir = "./backend/instance/ssl"
+    $certDir = "./backend/app/certs"
     $backendCertFile = "$certDir/myp.crt"
     $backendKeyFile = "$certDir/myp.key"
     $frontendCertFile = "$certDir/frontend.crt"