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

core

Is this a regression?

Yes

Description

When using two-way binding (aka banana-in-a-box), the output type is ignored or treated as any, after some testing it seems it started happening after v17.2.0.
This error stills happening in the current version (v19.0.1) and happens either with @Output, output or model, also happens when you bind a WritableSignal.

Example:

@Compotnent({
    selector: 'foo',
    ...
})
export class FooComponent {
    @Input() value: string | number | undefined;
    @Output() valueChange = new EventEmitter<number>();
}

@Component({
    template: `
        <foo [(value)]="str"/> <!-- ERROR: doesn't complain with 'number' is not assignable to 'string' -->
        <foo [value]="str" (valueChange)="str = $event"/> <!-- OK: complains with 'number' is not assignable to 'string' -->
    `
})
export class AppComponent {
    str: string = "";
}

Reproduction with ng17.0: https://stackblitz.com/edit/stackblitz-starters-krwib7?file=src%2Fmain.ts
Reproduction with ng17.2: https://stackblitz.com/edit/stackblitz-starters-tky4w1?file=src%2Fmain.ts

Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-tky4w1?file=src%2Fmain.ts

Please provide the exception or error you saw

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

Angular CLI: 17.2.3
Node: 18.20.3
Package Manager: npm 10.2.3
OS: linux x64

Angular: 17.2.4
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1702.3
@angular-devkit/build-angular   17.2.3
@angular-devkit/core            17.2.3
@angular-devkit/schematics      17.2.3
@angular/cli                    17.2.3
@schematics/angular             17.2.3
rxjs                            7.8.1
typescript                      5.2.2
zone.js                         0.14.10

Anything else?

No response