chore: move the go code into a subfolder

apps/api/cmd/initialise/verify_database.go

@@ -0,0 +1,44 @@
+package initialise
+
+import (
+	"context"
+	_ "embed"
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"github.com/zitadel/logging"
+
+	"github.com/zitadel/zitadel/internal/database"
+)
+
+func newDatabase() *cobra.Command {
+	return &cobra.Command{
+		Use:   "database",
+		Short: "initialize only the database",
+		Long: `Sets up the ZITADEL database.
+
+Prerequisites:
+- postgreSQL
+
+The user provided by flags needs privileges to 
+- create the database if it does not exist
+- see other users and create a new one if the user does not exist
+- grant all rights of the ZITADEL database to the user created if not yet set
+`,
+		Run: func(cmd *cobra.Command, args []string) {
+			config := MustNewConfig(viper.GetViper())
+
+			err := initialise(cmd.Context(), config.Database, VerifyDatabase(config.Database.DatabaseName()))
+			logging.OnError(err).Fatal("unable to initialize the database")
+		},
+	}
+}
+
+func VerifyDatabase(databaseName string) func(context.Context, *database.DB) error {
+	return func(ctx context.Context, db *database.DB) error {
+		logging.WithFields("database", databaseName).Info("verify database")
+
+		return exec(ctx, db, fmt.Sprintf(databaseStmt, databaseName), []string{dbAlreadyExistsCode})
+	}
+}