diff --git a/.githooks/post-receive b/.githooks/post-receive
index 3343aeb3..74e8426f 100755
--- a/.githooks/post-receive
+++ b/.githooks/post-receive
@@ -6,20 +6,24 @@ export NVM_DIR="$HOME/.nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
 [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
 
-GIT_DIR_ABS="$(git rev-parse --absolute-git-dir 2>/dev/null)"
-if [ -n "$GIT_DIR_ABS" ] && [ -d "$GIT_DIR_ABS" ]; then
-    REPO_TOPLEVEL="$(cd "$GIT_DIR_ABS/.." && pwd)"
-    export GIT_DIR="$GIT_DIR_ABS"
-else
-    REPO_TOPLEVEL="$(git rev-parse --show-toplevel 2>/dev/null || echo "$PWD")"
-fi
-unset GIT_WORK_TREE
-cd "$REPO_TOPLEVEL" || { echo "FATAL: cannot cd to $REPO_TOPLEVEL" >&2; exit 1; }
-echo "=== REPO_TOPLEVEL=$REPO_TOPLEVEL (GIT_DIR=$GIT_DIR) ===" >&2
+# 全局变量统一声明。具体值由各步骤函数写入。
+REPO_TOPLEVEL=""
+LOG_FILE=""
+CURRENT_BRANCH=""
+START_PORT=""
+BUILD_EXIT=0
 
-sync_worktree() {
-    echo "=== sync_worktree: git reset --hard HEAD @ $(date +%Y-%m-%dT%H:%M:%S%z) ==="
-    git reset --hard HEAD
+resolve_repo_context() {
+    GIT_DIR_ABS="$(git rev-parse --absolute-git-dir 2>/dev/null)"
+    if [ -n "$GIT_DIR_ABS" ] && [ -d "$GIT_DIR_ABS" ]; then
+        REPO_TOPLEVEL="$(cd "$GIT_DIR_ABS/.." && pwd)"
+        export GIT_DIR="$GIT_DIR_ABS"
+    else
+        REPO_TOPLEVEL="$(git rev-parse --show-toplevel 2>/dev/null || echo "$PWD")"
+    fi
+    unset GIT_WORK_TREE
+    cd "$REPO_TOPLEVEL" || { echo "FATAL: cannot cd to $REPO_TOPLEVEL" >&2; exit 1; }
+    echo "=== REPO_TOPLEVEL=$REPO_TOPLEVEL (GIT_DIR=$GIT_DIR) ===" >&2
 }
 
 init_log_file() {
@@ -37,12 +41,11 @@ write_metadata_header() {
     } > "$LOG_FILE"
 }
 
-# ============================================================
-# 3. copy_env_by_branch —— 根据分支选 env-example → .env
-#   main 分支 → .env.production（prod 部署）
-#   test 分支 → .env.local（test 不碰 .env.production，避免读到 prod 域名）
-#   dev 分支  → .env.local（未配远端用途，但保留）
-# ============================================================
+sync_worktree() {
+    echo "=== sync_worktree: git reset --hard HEAD @ $(date +%Y-%m-%dT%H:%M:%S%z) ==="
+    git reset --hard HEAD
+}
+
 copy_env_by_branch() {
     CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
     echo "=== branch: $CURRENT_BRANCH ===" >> "$LOG_FILE"
@@ -131,10 +134,8 @@ stop_existing_next() {
 }
 
 launch_next() {
-    # next stdout/stderr 接到 logs/next-server.log（覆盖模式，每次 deploy 重新开始）
-    NEXT_LOG_FILE="$REPO_TOPLEVEL/logs/next-server.log"
     echo "=== start LAUNCH port=$START_PORT @ $(date +%Y-%m-%dT%H:%M:%S%z) ===" >> "$LOG_FILE"
-    PORT="$START_PORT" nohup pnpm run start > "$NEXT_LOG_FILE" 2>&1 &
+    PORT="$START_PORT" nohup pnpm run start >> "$LOG_FILE" 2>&1 &
     START_PID=$!
     echo "=== start PID=$START_PID @ $(date +%Y-%m-%dT%H:%M:%S%z) ===" >> "$LOG_FILE"
 }
@@ -150,10 +151,13 @@ log_abort() {
 # main —— 调度所有步骤
 # ============================================================
 main() {
+    resolve_repo_context
     init_log_file
-    sync_worktree            # 先同步工作树到新 HEAD（与 git config denyCurrentBranch 配合）
     write_metadata_header    # 先覆盖写元信息（这样 env copy 日志能保留在后面）
+
+    sync_worktree            # 先同步工作树到新 HEAD（与 git config denyCurrentBranch 配合）
     copy_env_by_branch       # 追加 env copy 日志
+
     select_port_by_branch    # 根据当前分支决定 next start 端口
 
     if ! run_build; then