Remove Node.js 18 support from adapter creator (#1154)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Apollon77 <11976694+Apollon77@users.noreply.github.com>
Co-authored-by: Ingo Fischer <github@fischer-ka.de>

Author: Copilot

src/lib/core/questions.ts

@@ -556,10 +556,10 @@ export const questionGroups: QuestionGroup[] = [
 				message:
 					"What's the minimum Node.js version you want to support?",
 				initial: "20",
-				choices: ["18", "20", "22"],
+				choices: ["20", "22"],
 				migrate: (ctx) => {
 					if (ctx.hasDevDependency("@tsconfig/node18")) {
-						return "18";
+						return "20"; // For migrations upgrade to Node.js 20 as minimum
 					} else if (ctx.hasDevDependency("@tsconfig/node20")) {
 						return "20";
 					} else if (ctx.hasDevDependency("@tsconfig/node22")) {
@@ -981,7 +981,7 @@ export interface Answers {
 		| "code coverage"
 		| "devcontainer"
 	)[];
-	nodeVersion?: "18" | "20" | "22";
+	nodeVersion?: "20" | "22";
 	title?: string;
 	license?: string;
 	// Not used on the CLI, but can be provided by the web UI for example

test/baselines/minNodeVersion_18/package.json

@@ -357,20 +357,6 @@ describe("adapter creation =>", () => {
 				);
 			});
 
-			it(`Node.js 18 as minimum`, async () => {
-				const answers: Answers = {
-					...baseAnswers,
-					nodeVersion: "18",
-				};
-				await expectSuccess(
-					"minNodeVersion_18",
-					answers,
-					(file) =>
-						file.name === "package.json" ||
-						file.name === "tsconfig.json",
-				);
-			});
-
 			it(`Node.js 20 as minimum`, async () => {
 				const answers: Answers = {
 					...baseAnswers,