chore: add .env.example template and clean up deploy messages

Introduce a tracked .env.example file documenting all required environment
variables (app env, API/WebSocket base URLs, timeouts, Google/Facebook OAuth
credentials, Cloudflare CDN zone/token). Update .gitignore to allow this
file despite the blanket .env* ignore rule. Also simplify the push
success/failure output in scripts/deploy/_deploy_lib.sh by removing
verbose troubleshooting hints.

.env.example

@@ -0,0 +1,31 @@
+# 当前环境: development | test | production
+NEXT_PUBLIC_APP_ENV=development
+
+# 后端 API 基础 URL（按环境区分）
+# development: http://172.16.48.49:3002
+# test: https://api.cozsweet.com
+# production: https://api.cozsweet.com
+NEXT_PUBLIC_API_BASE_URL=http://172.16.48.49:3002
+
+# WebSocket URL（按环境区分，可选）
+# development: ws://172.16.48.49:3002
+# test: wss://api.cozsweet.com
+# production: wss://api.cozsweet.com
+NEXT_PUBLIC_WS_BASE_URL=ws://172.16.48.49:3002
+
+# API 超时时间（毫秒）
+NEXT_PUBLIC_API_CONNECT_TIMEOUT=30000
+NEXT_PUBLIC_API_RECEIVE_TIMEOUT=60000
+NEXT_PUBLIC_API_SEND_TIMEOUT=30000
+
+# Google OAuth 2.0 Client ID / Secret (Google Cloud Console → APIs & Services → Credentials)
+AUTH_GOOGLE_ID=
+AUTH_GOOGLE_SECRET=
+
+# Facebook App ID / Secret (Facebook Developers → 应用设置 → 基础)
+AUTH_FACEBOOK_ID=
+AUTH_FACEBOOK_SECRET=
+
+# Cloudflare CDN（test / production 部署后刷缓存用，scripts/deploy/_deploy_lib.sh 的 purge_cdn_cache 读这里）
+CF_ZONE_ID=
+CF_API_TOKEN=

.gitignore

@@ -32,6 +32,7 @@ yarn-error.log*
 
 # env files (can opt-in for committing if needed)
 .env*
+!.env.example
 
 # deploy archives (scripts/deploy/_deploy_lib.sh 的 archive() 生成)
 archives/

scripts/deploy/_deploy_lib.sh

@@ -34,13 +34,11 @@ push_to_server() {
 
     if [ $? -eq 0 ]; then
         echo "=========================================="
-        echo "推送成功！服务器端 post-receive hook 应已自动执行"
+        echo "推送成功！"
         echo "=========================================="
     else
         echo "=========================================="
-        echo "推送失败！常见原因："
+        echo "推送失败！"
-        echo "  1. 本地分支与远端非 fast-forward（git pull --rebase 后再试）"
-        echo "  2. 服务器端 hook 报错（看 git push 输出）"
         echo "=========================================="
         return 1
     fi