fix(vue-components): handle string form validation errors

[MakhBeth]

Form-level TanStack validators can return strings, but OmegaForm.Errors treated every error as a map of schema issue arrays. A password mismatch returned from onSubmit therefore crashed with e.filter is not a function instead of displaying the validation message.

Accept unknown error values, display strings directly, and check object/array/message shapes before extracting schema messages. Includes a patch changeset and regression coverage for submit errors clearing after correction and mixed schema/string/unsupported values.

Validation: targeted regression tests passed (2 tests). The pre-push ship gate passed: pnpm check, pnpm lint, and pnpm test.

[pkg-pr-new]

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@effect-app/cli

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effect-app

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@effect-app/eslint-codegen-model

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@effect-app/eslint-shared-config

npm i https://pkg.pr.new/effect-app/libs/@effect-app/eslint-shared-config@881

@effect-app/infra

npm i https://pkg.pr.new/effect-app/libs/@effect-app/infra@881

@effect-app/vue

npm i https://pkg.pr.new/effect-app/libs/@effect-app/vue@881

@effect-app/vue-components

npm i https://pkg.pr.new/effect-app/libs/@effect-app/vue-components@881

commit: fa0e80c