fix(db): V16 补充 conversation 租户时间索引，脚本使用 MYSQL_PWD 避免密码暴露，增加生产部署提示

scripts/extend-mysql-partitions.sh

@@ -17,6 +17,7 @@ MYSQL_USER="${MYSQL_USER:-root}"
 MYSQL_PASSWORD="${MYSQL_PASSWORD:-root}"
 MYSQL_DB="${MYSQL_DB:-sino_mci}"
 MONTHS_AHEAD="${MONTHS_AHEAD:-3}"
+DRY_RUN="${DRY_RUN:-0}"
 
 TABLES=(
     mci_message_event
@@ -24,12 +25,21 @@ TABLES=(
     mci_conversation
 )
 
+if ! command -v mysql >/dev/null 2>&1; then
+    echo "Error: mysql client not found in PATH" >&2
+    exit 1
+fi
+
 echo "Extending monthly partitions for database: ${MYSQL_DB}"
 echo "Host: ${MYSQL_HOST}:${MYSQL_PORT}, User: ${MYSQL_USER}, Months ahead: ${MONTHS_AHEAD}"
 
 for table in "${TABLES[@]}"; do
     echo "  -> ${table}"
-    mysql -h "${MYSQL_HOST}" -P "${MYSQL_PORT}" -u "${MYSQL_USER}" -p"${MYSQL_PASSWORD}" "${MYSQL_DB}" \
+    if [ "${DRY_RUN}" = "1" ]; then
+        echo "      CALL ExtendMonthlyPartitions('${table}', ${MONTHS_AHEAD});"
+        continue
+    fi
+    MYSQL_PWD="${MYSQL_PASSWORD}" mysql -h "${MYSQL_HOST}" -P "${MYSQL_PORT}" -u "${MYSQL_USER}" "${MYSQL_DB}" \
         -e "CALL ExtendMonthlyPartitions('${table}', ${MONTHS_AHEAD});"
 done