fix(ci): use git init for first deploy to handle non-empty directory

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sawyerbutton

.github/workflows/deploy.yml

@@ -21,18 +21,13 @@ jobs:
 
             DEPLOY_DIR=/opt/md2wechat
 
-            # First-time setup: clone if not a git repo yet
+            # First-time setup: init git in existing directory
             if [ ! -d "$DEPLOY_DIR/.git" ]; then
               sudo mkdir -p "$DEPLOY_DIR"
               sudo chown $USER:$USER "$DEPLOY_DIR"
-              # Preserve .env if it exists
-              if [ -f "$DEPLOY_DIR/.env" ]; then
-                cp "$DEPLOY_DIR/.env" /tmp/.env.bak
-              fi
-              git clone git@github.com:sawyerbutton/md2wechat.git "$DEPLOY_DIR"
-              if [ -f /tmp/.env.bak ]; then
-                mv /tmp/.env.bak "$DEPLOY_DIR/.env"
-              fi
+              cd "$DEPLOY_DIR"
+              git init
+              git remote add origin git@github.com:sawyerbutton/md2wechat.git
             fi
 
             cd "$DEPLOY_DIR"