Add retry logic for flaky watch test on macOS

[Copilot]

The "watch function should initialize without crashing" test is flaky on macOS.

Changes:

• Add retry option to the test using Vitest's retry configuration
• The test will retry up to 3 times on macOS if it fails (process.platform === 'darwin' ? 3 : 0)
• Other platforms (Linux, Windows) run the test without retries

This approach allows the test to run on macOS and potentially pass on subsequent attempts while handling flakiness gracefully, rather than skipping it entirely.

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Latest commit: 7315aa2

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[stipsan]

@copilot can it be skipped if it fails instead of always skipped? Or maybe just retry? Maybe we can set some retry options instead?

[Copilot]

@copilot can it be skipped if it fails instead of always skipped? Or maybe just retry? Maybe we can set some retry options instead?

Changed to use Vitest's retry option instead. The test will now retry up to 3 times on macOS if it fails, allowing it to run and potentially pass rather than being skipped entirely. Fixed in 7315aa2.