add customized app.js from server repo

frontend.js

@@ -111,7 +111,7 @@ export class Frontend {
     }
     let prevCount = 0
     while (this.tasks.count > prevCount) {
-      prevCount = this.tasks.count
+      prevCount = this.tasks.length
       await Promise.all(this.tasks)
     }
   }

server.js

@@ -43,11 +43,6 @@ export class Server {
       apiBaseUrl: this.giteaApiBaseUrl,
     })
     const promises = []
-    promises.push(server.frontend.loadRepo(
-      'macchiato',
-      'pages',
-      {srcPath: [], destPath: []}
-    ))
     const repos = [
       'loader',
       'editor',
@@ -65,7 +60,37 @@ export class Server {
         {srcPath: [], destPath: [repo]}
       ))
     }
+    promises.push(server.frontend.loadRepo(
+      'macchiato',
+      'pages',
+      {srcPath: [], destPath: []}
+    ))
+    promises.push(server.frontend.loadRepo(
+      'macchiato',
+      'server',
+      {
+        srcPath: [],
+        destPath: ['server'],
+        ref: 'shared-server'
+      }
+    ))
     await Promise.all(promises)
+    this.frontend.files['/app.js'] = (
+      this.frontend.files['/server/app.js']
+    )
+    this.frontend.files['/'] = (
+      this.frontend.files['/index.html']
+    )
+    const sw = this.frontend.files['/sw.js']
+    const commit = (
+      this.frontend.files['/server/app.js'].commit
+    )
+    sw.body = (
+      new TextEncoder().encode(
+        new TextDecoder().decode(sw.body) +
+        `\n// ${commit}\n`
+      )
+    )
   }
 
   async serveRequest(event) {