fix: resolve snippets from original file path - align with include behavior

Author: brc-dd

Diff for: src/node/markdown/plugins/snippet.ts

@@ -125,10 +125,9 @@ export const snippetPlugin = (md: MarkdownIt, srcDir: string) => {
       title ? `[${title}]` : ''
     }`
 
-    const resolvedPath = path.resolve(
-      path.dirname((state.env as MarkdownEnv).path),
-      filepath
-    )
+    const { realPath, path: _path } = state.env as MarkdownEnv
+    const resolvedPath = path.resolve(path.dirname(realPath ?? _path), filepath)
+
     // @ts-ignore
     token.src = [resolvedPath, region.slice(1)]
     token.markup = '```'

Diff for: src/node/markdownToVue.ts

@@ -128,7 +128,8 @@ export async function createMarkdownToVueRenderFn(
       path: file,
       relativePath,
       cleanUrls,
-      includes
+      includes,
+      realPath: fileOrig
     }
     const html = md.render(src, env)
     const {

Diff for: types/shared.d.ts

@@ -136,4 +136,5 @@ export interface MarkdownEnv {
   cleanUrls: boolean
   links?: string[]
   includes?: string[]
+  realPath?: string
 }