refactor(deploy): parameterize git remote in deploy scripts

Replace hardcoded GIT_REMOTE variable with a function parameter so the
shared deploy library can push to either the production or test remote
from the same script. Rename push_to_server to push_to_remote and update
both deploy_web.sh and deploy_web_test.sh to pass the appropriate remote.

scripts/deploy/_deploy_lib.sh

@@ -1,21 +1,20 @@
 #!/bin/bash
 
-# Git remote 名（在仓库根目录配置）：
-#   git remote add server root@8.166.137.51:/root/frontend/cozsweet
-GIT_REMOTE="test"
-
-# 推送指定分支到服务器
+# 推送指定分支到指定远端
 # 期望服务器端 post-receive hook 已就位；本脚本只做 git push，不负责构建/启动
-push_to_server() {
-    local branch="$1"
+# 调用方：deploy_web.sh（production）→ push_to_remote "production" "main"
+#        deploy_web_test.sh（test）→ push_to_remote "test" "test"
+push_to_remote() {
+    local remote="$1"
+    local branch="$2"
 
-    if [ -z "$branch" ]; then
-        echo "错误: 未指定分支名"
+    if [ -z "$remote" ] || [ -z "$branch" ]; then
+        echo "错误: 未指定 remote 或 branch"
         return 1
     fi
 
     echo "=========================================="
-    echo "git push $GIT_REMOTE $branch ..."
+    echo "git push $remote $branch ..."
     echo "=========================================="
 
     local current=$(git branch --show-current 2>/dev/null || echo "unknown")
@@ -24,13 +23,13 @@ push_to_server() {
     fi
 
     # 检查 remote 是否存在
-    if ! git remote get-url "$GIT_REMOTE" >/dev/null 2>&1; then
-        echo "错误: git remote '$GIT_REMOTE' 未配置"
-        echo "  请运行: git remote add $GIT_REMOTE root@8.166.137.51:/root/frontend/cozsweet"
+    if ! git remote get-url "$remote" >/dev/null 2>&1; then
+        echo "错误: git remote '$remote' 未配置"
+        echo "  请运行: git remote add $remote <URL>"
         return 1
     fi
 
-    git push "$GIT_REMOTE" "$branch"
+    git push "$remote" "$branch"
 
     if [ $? -eq 0 ]; then
         echo "=========================================="