Merge shape3d2/main into develop (take main versions)

src/.gitkeep

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+

src/README.md

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+# src\n\nTODO: Core backend/business logic.\n

src/config.php

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+<?php
+// inc/config.php
+// Diese Datei außerhalb des Webroots ablegen!
+return [
+    'db_host' => 'localhost',
+    'db_name' => 'd0453540',
+    'db_user' => 'd0453540',
+    'db_pass' => 'P6jGRrSaX8QSiBMEJBL7',
+    'db_charset' => 'utf8mb4',
+];