workflow(sfc-playground): tweaks and commit links

packages/sfc-playground/vite.config.ts

@@ -2,9 +2,15 @@ import fs from 'fs'
 import path from 'path'
 import { defineConfig, Plugin } from 'vite'
 import vue from '@vitejs/plugin-vue'
+import execa from 'execa'
+
+const commit = execa.sync('git', ['rev-parse', 'HEAD']).stdout.slice(0, 7)
 
 export default defineConfig({
   plugins: [vue(), copyVuePlugin()],
+  define: {
+    __COMMIT__: JSON.stringify(commit)
+  },
   optimizeDeps: {
     exclude: ['consolidate']
   }
@@ -13,7 +19,7 @@ export default defineConfig({
 function copyVuePlugin(): Plugin {
   return {
     name: 'copy-vue',
-    generateBundle(_opts, bundle) {
+    generateBundle() {
       const filePath = path.resolve(
         __dirname,
         '../vue/dist/vue.runtime.esm-browser.js'