vp create: skip git-hook prompt when staged config already exists

[crusty-voidzero]

Summary

vp create currently prompts the user to enable git hooks even when the staged config option is already present in vite.config.*.

If a project already opted into hooks via config, the prompt is redundant / confusing.

Conversation: https://discord.com/channels/1464542801676206113/1465764080207003811/1486623567281127425

Expected

• Detect whether git hooks / staged config is already configured inside vite.config.ts
• If it is, skip the prompt and keep the existing behavior

Why

• Avoid double prompts and reduce friction for users who already configured hooks manually or via earlier versions of Vite+
• Keeps vp create idempotent.

[fengmk2]

This issue only occurs during the first install after the initial clone, because the git core.hooksPath config is not configured, and our logic depends on this judgment. We should skip the judgment and directly set the git core.hooksPath configuration.

[fengmk2]

vite-plus 0.1.14 still cannot handle the logic of calling vp config in the postinstall script. I will additionally check if staged is configured in vite.config.ts to determine whether to execute pre-hooks initialization.

We also need to add the logic for automatically executing the vp config call in postinstall.

[fengmk2]

Cannot select No only Yes, arrows on Windows doesn't work