fix(dev): await close hooks on shutdown + warn on hanging processes

[danielroe]

🔗 Linked issue

resolves nuxt/nuxt#32928
resolves #373

📚 Description

this awaits close hooks when shutting down/restarting, and warns if there's a hang.

it can't resolve a pure nitro hang - that would need a change to nitro (todo)

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📥 Commits

Reviewing files that changed from the base of the PR and between 9d7ce7a and 2fb8716.

📒 Files selected for processing (11)

• packages/nuxt-cli/src/commands/dev.ts
• packages/nuxt-cli/src/dev/index.ts
• packages/nuxt-cli/src/dev/pool.ts
• packages/nuxt-cli/src/dev/shutdown.ts
• packages/nuxt-cli/src/dev/takeover.ts
• packages/nuxt-cli/src/dev/utils.ts
• packages/nuxt-cli/src/main.ts
• packages/nuxt-cli/src/run.ts
• packages/nuxt-cli/src/utils/hang.ts
• packages/nuxt-cli/test/unit/hang.spec.ts
• packages/nuxt-cli/test/unit/pool.spec.ts

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[pkg-pr-new]

• nuxt-cli-playground

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commit: 2fb8716

[codspeed-hq]

Merging this PR will not alter performance

✅ 2 untouched benchmarks

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_{Comparing fix/hanging-processes (2fb8716) with main (9d7ce7a)}