fix: try to catch unhandled error outside of a test

[sheremet-va]

Description

Fixes #7940

TODO

• Test
• Docs

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Tests

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Documentation

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Changesets

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[Copilot]

Pull Request Overview

This PR fixes an unhandled error tracking issue by modifying error listener behavior, adding tests and updating documentation.

• Changes test files to validate unhandled error behavior.
• Updates the error listener logic in the runtime execution code.
• Updates documentation and snapshots to reflect the new error reporting behavior.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/core/test/unhandled.test.ts	Added test for unhandled promise error handling.
test/cli/test/snapshots/fails.test.ts.snap	Updated snapshot output for unhandled errors.
test/cli/fixtures/fails/unhandled-suite.test.ts	Added an additional test suite for unhandled errors.
packages/vitest/src/runtime/execute.ts	Modified error listener logic by removing the test-specific condition.
docs/guide/features.md	Added a documentation section on reporting uncaught errors.
docs/.vitepress/components/FeaturesList.vue	Updated feature list to include error reporting.
README.md	Updated feature list to include reporting of uncaught errors.

Comments suppressed due to low confidence (1)

packages/vitest/src/runtime/execute.ts:60

• The removal of the test-specific error handling condition may affect how unhandled errors during tests are processed; please verify that this change does not inadvertently suppress errors that should be reported.

if (worker.current?.type === 'test') {