HMR Vite cannot find `/@ng/component` entry point module in v19.1.0 SSR

[Ruisi-Lu]

Which @angular/* package(s) are the source of the bug?

Don't known / other

Is this a regression?

Yes

Description

When enabling SSR in an Angular 19.1.0 project, the application throws an error related to Vite not finding the entry point module.
When disable HMR, no throws.

Steps to reproduce the issue:

1. ng new --ssr
2. ng serve
3. Observe the error in the terminal.

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

Error: [vite] cannot find entry point module 'file:///C:/@ng/component?c=src%2Fapp%2Fapp.component.ts%40AppComponent&t=1737003792335'.
    at fetchModule (file:///C:/Project/test/node_modules/vite/dist/node/chunks/dep-BJP6rrE_.js:51477:13)
    at async handleInvoke (file:///C:/Project/test/node_modules/vite/dist/node/chunks/dep-BJP6rrE_.js:44166:22)
    at async EventEmitter.listenerForInvokeHandler (file:///C:/Project/test/node_modules/vite/dist/node/chunks/dep-BJP6rrE_.js:44239:19) {
  runnerError: Error: RunnerError
      at reviveInvokeError (file:///C:/Project/test/node_modules/vite/dist/node/module-runner.js:541:18)
      at Object.invoke (file:///C:/Project/test/node_modules/vite/dist/node/module-runner.js:624:15)
}

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 19.1.0
Node: 20.18.1
Package Manager: npm 10.8.2
OS: win32 x64

Angular: 19.1.0
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, platform-server
... router, ssr

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1901.0
@angular-devkit/build-angular   19.1.0
@angular-devkit/core            19.1.0
@angular-devkit/schematics      19.1.0
@schematics/angular             19.1.0
rxjs                            7.8.1
typescript                      5.7.3
zone.js                         0.15.0

Anything else?

No response