feat: sqlite检查文件存在不覆盖

debbuild/DEBIAN/postinst

@@ -63,6 +63,11 @@ if [ ! -e "${NginxConfDir}/omc.conf" ]; then
     cp -f ${OMCEtcDir}/nginx/omc.conf ${NginxConfDir}; 
 fi
 
+if [ ! -e "${OMCRootDir}/database/omc_db.sqlite" ]; then
+    mkdir -p ${OMCRootDir}/database
+    cp -f ${OMCRootDir}/etc/db/omc_db.sqlite ${OMCRootDir}/database/omc_db.sqlite; 
+fi
+
 systemctl daemon-reload
 
 # disable auto upgrade