docs(angular/guides/mutation-options): fix the duplicated 'query-options' id and inject the 'QueryClient' used in the example

[sukvvon]

🎯 Changes

• The Angular mutation options guide had id: query-options in its frontmatter, the same id as the query options guide. Use id: mutation-options.
• The example injected HttpClient, which it does not use, and called this.queryClient.setQueryData(...) without injecting QueryClient. Inject QueryClient instead.

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☁️ Nx Cloud last updated this comment at 2026-10-20 03:04:34 UTC

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size-limit report 📦

Path	Size
react full	11.76 KB (0%)
react minimal	8.59 KB (0%)

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• docs/framework/angular/guides/mutation-options.md

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| You could simplify this. Not because I said so - because reality did. |
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