fix: package prebuilt app for deployment

scripts/deploy.mjs

@@ -12,6 +12,8 @@ const image = `${service}:${sha}`;
 const port = process.env.DEPLOY_PORT || "3000";
 const password = process.env.STUDIO_PASSWORD;
 const username = process.env.STUDIO_USERNAME || "studio";
+const dockerfile = process.env.DEPLOY_DOCKERFILE || "Dockerfile";
+const usePrebuiltOutput = dockerfile === "Dockerfile.deploy";
 
 if (!password) throw new Error("STUDIO_PASSWORD secret is required");
 if (!/^\d{2,5}$/.test(port) || Number(port) > 65535) throw new Error("DEPLOY_PORT must be a valid TCP port");
@@ -40,19 +42,22 @@ async function waitForHealth(container, timeoutMs = 90_000) {
 }
 
 async function followBuild(stream) {
-  await new Promise((resolve, reject) => {
-    docker.modem.followProgress(stream, (error, output) => error ? reject(error) : resolve(output), (event) => {
+  const output = await new Promise((resolve, reject) => {
+    docker.modem.followProgress(stream, (error, events) => error ? reject(error) : resolve(events), (event) => {
       if (event.stream) process.stdout.write(event.stream);
       if (event.error) process.stderr.write(`${event.error}\n`);
     });
   });
+  const failure = output.find((event) => event.error || event.errorDetail?.message);
+  if (failure) throw new Error(failure.error || failure.errorDetail.message);
 }
 
 console.log(`Building ${image}`);
 const context = tar.pack(process.cwd(), {
-  ignore: (name) => [".git", ".next", "node_modules"].some((part) => name === part || name.includes(`/${part}/`)),
+  ignore: (name) => [".git", "node_modules", ...usePrebuiltOutput ? [] : [".next"]]
+    .some((part) => name === part || name.includes(`/${part}/`)),
 });
-await followBuild(await docker.buildImage(context, { t: image, dockerfile: "Dockerfile" }));
+await followBuild(await docker.buildImage(context, { t: image, dockerfile }));
 
 try { await docker.createVolume({ Name: volume }); } catch (error) { if (error.statusCode !== 409) throw error; }
 await removeContainer(candidate);