[Marve10s]

Issue number: resolves #30374

What is the current behavior?

Ionic page lifecycle hooks bypass Vue's error handling. Rejected promises do not reach onErrorCaptured or app.config.errorHandler, and synchronous throws can interrupt the page transition and leave the page invisible.

What is the new behavior?

Composition API hooks, component options, and instance methods invoke callbacks through Vue's callWithAsyncErrorHandling, using the owning component instance. Errors follow Vue's normal capture and propagation rules. A handled failure allows navigation to complete, while callback receivers, arguments, and return values are preserved.

The existing Vue test app includes a reproduction at /lifecycle-errors?api=composition&async=false. It also accepts api=options and async=true to exercise all four combinations.

Does this introduce a breaking change?

• Yes
• No

Other information

All 52 new regression cases fail against the original bundle and pass with this change. The full Vue unit suite passes all 125 tests. Package lint, typecheck, build, and the reproduction app build pass. The tests use real Vue components, Ionic router, and outlet in jsdom; browser e2e tests were not run locally.

The error diagnostic uses Vue's existing transition hook category. Unhandled errors continue to follow Vue's normal policy.

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