test(regressions): re-bless CVA __rozieCvaDisabled protected snapshots

Follow-up to the CVA private->protected emitter fix: three regression
fixtures pin the angular emit and carried the old `private` form.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KcWqckxMNtbU5LGEAvYXEk

Author: serpentblade

tests/regressions/fixtures/05-04b-todolist-slot-context-arrow/expected.angular.ts

@@ -71,7 +71,7 @@ export class ScopedSlotContext {
 
   private __rozieCvaOnChange: (v: any[]) => void = () => {};
   private __rozieCvaOnTouchedFn: () => void = () => {};
-  private __rozieCvaDisabled = signal(false);
+  protected __rozieCvaDisabled = signal(false);
 
   writeValue(v: any[] | null): void {
     this.items.set(v ?? (() => [])());

tests/regressions/fixtures/06.4-lit-checkbox-rmodel/expected.angular.ts

@@ -31,7 +31,7 @@ export class CheckboxRModel {
 
   private __rozieCvaOnChange: (v: boolean) => void = () => {};
   private __rozieCvaOnTouchedFn: () => void = () => {};
-  private __rozieCvaDisabled = signal(false);
+  protected __rozieCvaDisabled = signal(false);
 
   writeValue(v: boolean | null): void {
     this.checked.set(v ?? false);

tests/regressions/fixtures/07-01-angular-counter-selector/expected.angular.ts

@@ -30,7 +30,7 @@ export class Counter {
 
   private __rozieCvaOnChange: (v: number) => void = () => {};
   private __rozieCvaOnTouchedFn: () => void = () => {};
-  private __rozieCvaDisabled = signal(false);
+  protected __rozieCvaDisabled = signal(false);
 
   writeValue(v: number | null): void {
     this.value.set(v ?? 0);