From f438c482c38b6e79ccba072b23939b950763e97f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=80=E6=9D=A1=E5=9B=BA=E6=89=A7=E7=9A=84=E9=B1=BC?=
 <1504947133@qq.com>
Date: Fri, 14 Aug 2026 18:32:16 +0800
Subject: [PATCH] fix(frontend): export Expo web so Vercel preview serves HTML

Vercel was publishing frontend source and serving index.ts as video/mp2t, so preview links downloaded a file instead of opening the app.
---
 .github/workflows/ci.yml |  5 ++++-
 frontend/.gitignore      |  1 +
 frontend/app.json        |  7 ++++++-
 frontend/package.json    |  3 ++-
 frontend/vercel.json     | 14 ++++++++++++++
 5 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 frontend/vercel.json

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d836b52e..7826660a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -138,5 +138,8 @@ jobs:
       - name: Checks (lint, format, typecheck)
         run: npm run check
 
-      - name: Export build
+      - name: Export Android build
         run: npx expo export --platform android --output-dir dist
+
+      - name: Export Web build
+        run: npx expo export --platform web --output-dir dist-web && test -f dist-web/index.html
diff --git a/frontend/.gitignore b/frontend/.gitignore
index bd701e15..96403d63 100644
--- a/frontend/.gitignore
+++ b/frontend/.gitignore
@@ -6,6 +6,7 @@ node_modules/
 # Expo
 .expo/
 dist/
+dist-web/
 web-build/
 expo-env.d.ts
 
diff --git a/frontend/app.json b/frontend/app.json
index d1242021..bf7d4921 100644
--- a/frontend/app.json
+++ b/frontend/app.json
@@ -29,6 +29,11 @@
       ],
       "package": "com.anonymous.timeflow"
     },
-    "plugins": ["expo-sqlite", "expo-location", "@irvingouj/expo-audio-stream"]
+    "plugins": ["expo-sqlite", "expo-location", "@irvingouj/expo-audio-stream"],
+    "web": {
+      "bundler": "metro",
+      "output": "single",
+      "favicon": "./assets/icon.png"
+    }
   }
 }
diff --git a/frontend/package.json b/frontend/package.json
index a8e99ea7..99862b16 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -47,6 +47,7 @@
     "android": "expo run:android",
     "ios": "expo run:ios",
     "web": "expo start --web",
+    "export:web": "expo export --platform web --output-dir dist",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
     "format": "prettier --write .",
@@ -58,7 +59,7 @@
     "typecheck": "tsc --noEmit",
     "check": "npm run lint && npm run format:check && npm run typecheck && npm run test",
     "postinstall": "patch-package",
-    "verify:ci": "npm run check && expo export --platform android --output-dir dist"
+    "verify:ci": "npm run check && expo export --platform android --output-dir dist && expo export --platform web --output-dir dist-web"
   },
   "private": true,
   "jest": {
diff --git a/frontend/vercel.json b/frontend/vercel.json
new file mode 100644
index 00000000..992e0621
--- /dev/null
+++ b/frontend/vercel.json
@@ -0,0 +1,14 @@
+{
+  "buildCommand": "npx expo export -p web",
+  "outputDirectory": "dist",
+  "installCommand": "npm ci",
+  "devCommand": "npx expo start --web",
+  "cleanUrls": true,
+  "framework": null,
+  "rewrites": [
+    {
+      "source": "/:path*",
+      "destination": "/"
+    }
+  ]
+}