refactor(forms): rename directive files for consistency (#67727)

- **FormField**:  `form_field_directive.ts` -> `form_field.ts`
- **FormRoot**:   `ng_signal_form.ts`       -> `form_root.ts`

PR Close #67727

packages/forms/signals/public_api.ts

@@ -20,5 +20,5 @@ export * from './src/api/rules/validation/validation_errors';
 export * from './src/api/structure';
 export * from './src/api/transformed_value';
 export * from './src/api/types';
-export * from './src/directive/form_field_directive';
-export * from './src/directive/ng_signal_form';
+export * from './src/directive/form_field';
+export * from './src/directive/form_root';

packages/forms/signals/src/api/control.ts

@@ -7,7 +7,7 @@
  */
 
 import {InputSignal, InputSignalWithTransform, ModelSignal, OutputRef} from '@angular/core';
-import type {FormFieldBindingOptions} from '../directive/form_field_directive';
+import type {FormFieldBindingOptions} from '../directive/form_field';
 import type {ValidationError, WithOptionalFieldTree} from './rules/validation/validation_errors';
 import type {DisabledReason} from './types';
 

packages/forms/signals/src/api/rules/validation/validation_errors.ts

@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import type {FormField} from '../../../directive/form_field_directive';
+import type {FormField} from '../../../directive/form_field';
 import type {ReadonlyFieldTree} from '../../types';
 import type {StandardSchemaValidationError} from './standard_schema';
 

packages/forms/signals/src/api/types.ts

@@ -8,7 +8,7 @@
 
 import {Injector, Signal, WritableSignal} from '@angular/core';
 import {AbstractControl} from '@angular/forms';
-import type {FormField} from '../directive/form_field_directive';
+import type {FormField} from '../directive/form_field';
 import type {MetadataKey, ValidationError} from './rules';
 
 /**

packages/forms/signals/src/directive/control_custom.ts

@@ -7,7 +7,7 @@
  */
 
 import type {ɵControlDirectiveHost as ControlDirectiveHost} from '@angular/core';
-import type {FormField} from './form_field_directive';
+import type {FormField} from './form_field';
 import {
   bindingUpdated,
   CONTROL_BINDING_NAMES,

packages/forms/signals/src/directive/control_cva.ts

@@ -15,7 +15,7 @@ import {
   readFieldStateBindingValue,
 } from './bindings';
 import {setNativeDomProperty} from './native';
-import type {FormField} from './form_field_directive';
+import type {FormField} from './form_field';
 
 export function cvaControlCreate(
   host: ControlDirectiveHost,

packages/forms/signals/src/directive/control_native.ts

@@ -19,7 +19,7 @@ import {
   readFieldStateBindingValue,
   type ControlBindingKey,
 } from './bindings';
-import type {FormField} from './form_field_directive';
+import type {FormField} from './form_field';
 import {InputValidityMonitor} from './input_validity_monitor';
 import {
   getNativeControlValue,

packages/forms/signals/src/field/node.ts

@@ -33,7 +33,7 @@ import type {
   FieldTree,
   MarkAsTouchedOptions,
 } from '../api/types';
-import type {FormField} from '../directive/form_field_directive';
+import type {FormField} from '../directive/form_field';
 import {DYNAMIC} from '../schema/logic';
 import {LogicNode} from '../schema/logic_node';
 import {FieldPathNode} from '../schema/path_node';

packages/forms/signals/src/field/state.ts

@@ -7,7 +7,7 @@
  */
 
 import {computed, signal, Signal} from '@angular/core';
-import type {FormField} from '../directive/form_field_directive';
+import type {FormField} from '../directive/form_field';
 import type {Debouncer, DisabledReason} from '../api/types';
 import {DEBOUNCER} from './debounce';
 import type {FieldNode} from './node';

packages/forms/signals/test/web/signal_form_control_web.spec.ts

@@ -12,7 +12,7 @@ import {FormControl, FormGroup, ReactiveFormsModule} from '@angular/forms';
 import {disabled} from '@angular/forms/signals';
 
 import {SignalFormControl} from '../../compat';
-import {FormField} from '../../src/directive/form_field_directive';
+import {FormField} from '../../src/directive/form_field';
 
 describe('SignalFormControl (web)', () => {
   beforeEach(() => {