feat(virtual-core): optimization memo function inner logic

[taylous]

summary

1. the condition opts.key && opts.debug?.() was repeated multiple times, so I assigned it to a variable for reuse.
2. for the const depsChanged = ... expression, i extracted it into a separate function instead of assigning it to a variable, to improve readability.
3. i also replaced the pad function with String(...).padStart(...) to prevent unnecessary creation and enhance clarity.

if this PR gets approved, it might be better to move isDepsChanged to a different file instead of utils.ts, since all functions in utils.ts are meant to be exported and publicly usable.

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☁️ Nx Cloud last updated this comment at 2025-04-06 16:06:51 UTC

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commit: abcda37