diff --git a/src/main/domain/.gitkeep b/src/main/domain/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/src/main/index.ts b/src/main/index.ts
new file mode 100644
index 0000000..7f8ffae
--- /dev/null
+++ b/src/main/index.ts
@@ -0,0 +1,3 @@
+// Stammverzeichnis fuer das v5-Architektur-Refactoring.
+// Plan 04 macht daraus den Entry-Point statt src/main.ts.
+export {};
diff --git a/src/main/infra/.gitkeep b/src/main/infra/.gitkeep
new file mode 100644
index 0000000..e69de29