Fix vite-plugin TypeScript resolution for Vite 8 compile job

[Copilot]

The compile GitHub Actions job fails after the Vite 8 upgrade because the hyde-vite-plugin package still uses legacy TypeScript module resolution. TypeScript cannot resolve Vite’s published type entrypoints under that setting, which causes the plugin build to fail.

• Root cause

  packages/vite-plugin compiled with:

  {
    "compilerOptions": {
      "moduleResolution": "node"
    }
  }

  Under Vite 8, that no longer resolves vite's type declarations correctly.

• Change

  Update the plugin package TypeScript config to use bundler-aware resolution:

  {
    "compilerOptions": {
      "moduleResolution": "bundler"
    }
  }

• Effect

  This restores type resolution for:

  import { Plugin, ResolvedConfig } from 'vite';

  and unblocks the packages/vite-plugin build used by the compile workflow.