Separate handling of page HTML base path and static assets base path in Vitepress

[hulk-yin]

In Vitepress (vuejs/vitepress), the page HTML base path (site.base) and the static assets base path (vite config.base, equivalent to publicPath in webpack) are not handled separately. This causes issues when deploying the HTML and CDN separately (with the HTML being served from a dedicated domain and the CDN deployed on a general CDN service). The built pages cannot navigate correctly or the static assets fail to load properly.

The current code handling both site.base and vite.config.base consistently can be found at the following link:

vitepress/src/node/build/bundle.ts

Line 60 in b16340a

base: config.site.base,

It would be beneficial to separate the handling of these two base paths to better support different deployment scenarios.

[brc-dd]

Duplicate of #736