Could not find an NgModule. Use the skip-import option to skip importing in NgModule.

**Description:**

Seems like the CLI doesn't understand Angular 19 standalone conmponent. I am unable to create a page using:

FYI: Standalone component is now the default.

```sh
ionic g page pages/home
```

Getting the following error

```sh
> ng generate page pages/home --project=app
Could not find an NgModule. Use the skip-import option to skip importing in NgModule.
[ERROR] Could not generate page.
```

**My `ionic info`:**

```
$ ionic info

Ionic:

Ionic CLI : 7.2.0 (/home/yadav/.local/share/pnpm/global/5/.pnpm/@ionic+cli@7.2.0/node_modules/@ionic/cli)
Ionic Framework : @ionic/angular 8.4.1
@angular-devkit/build-angular : 19.0.6
@angular-devkit/schematics : 19.0.0 (/home/yadav/.local/share/pnpm/global/5/.pnpm/@angular-devkit+schematics@19.0.0_chokidar@3.6.0/node_modules/@angular-devkit/schematics)
@angular/cli : 19.0.6
@ionic/angular-toolkit : 12.1.1

Utility:

cordova-res : not installed globally
native-run : 2.0.1

System:

NodeJS : v22.11.0 (/home/yadav/.nvm/versions/node/v22.11.0/bin/node)
npm : 10.9.0
OS : Linux 6.12
```

Reproduce the reported `ionic g page pages/home` command in an Angular 19 standalone-component project and trace the CLI's page-generation entry point when it invokes `ng generate page`. Done means page generation succeeds without requiring an NgModule, while preserving the existing `--skip-import` behavior.

由索引模型根据 Issue 内容生成。