refactor: extract config generation startup flow

src/core/services/config-generation-runtime-service.ts

@@ -0,0 +1,26 @@
+import { CliArgs } from "../../cli/args";
+
+export interface ConfigGenerationRuntimeDeps {
+  shouldStartApp: (args: CliArgs) => boolean;
+  generateConfig: (args: CliArgs) => Promise<number>;
+  onSuccess: (exitCode: number) => void;
+  onError: (error: Error) => void;
+}
+
+export function runGenerateConfigFlowRuntimeService(
+  args: CliArgs,
+  deps: ConfigGenerationRuntimeDeps,
+): boolean {
+  if (!args.generateConfig || deps.shouldStartApp(args)) {
+    return false;
+  }
+
+  deps.generateConfig(args)
+    .then((exitCode) => {
+      deps.onSuccess(exitCode);
+    })
+    .catch((error: Error) => {
+      deps.onError(error);
+    });
+  return true;
+}