fix(config): skip git lookup when hooks are disabled

[tarikermis]

What changed

vp config now checks the Git hooks environment opt-out before resolving the hook location. With HUSKY=0, VP_GIT_HOOKS=0, or the legacy VITE_GIT_HOOKS=0, it skips hook setup without invoking Git.

Why

The opt-out previously lived inside install(), but vp config called the Git-backed location resolver first. Git-less containers therefore failed even though hooks were explicitly disabled.

Tests

• Focused config hook tests: 36 passed, 1 existing platform skip
• Regression test imports the real config entrypoint and makes the Git resolver throw if reached
• Oxlint on the changed files

Fixes #2441

[netlify]

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[fengmk2]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Another round soon, please!

Reviewed commit: 27848db377

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