Fix: Tooling-Container actually run migrations

Einheit_4/tooling_container/entrypoint.sh

@@ -1,8 +1,4 @@
 #!/bin/bash
-# Wait for SQL Server to boot up (adjust sleep if needed)
-echo "Waiting for SQL Server to start..."
-sleep 20s
-
 # Run the three SQL files using sqlcmd
 # -S: Server, -U: User, -P: Password (passed via ENV)
 echo "Applying SQL files..."
@@ -10,7 +6,7 @@ echo "Applying SQL files..."
 for migration in $(ls . | grep -E '\.sql$')
 do
     echo "Applying $migration."
-    /opt/mssql-tools/bin/sqlcmd -D $DSN_PASSWORD -i $migration.sql
+    /opt/mssql-tools/bin/sqlcmd -S mssql-server -U sa -C -P "$DSN_PASSWORD" -i $migration.sql
 done
 
 echo "Database initialization complete."