NEW ORLEANS—With power due back for almost all of New Orleans by next week, Mayor LaToya Cantrell strongly encouraged residents who evacuated because of Hurricane Ida to begin returning home. But outside the city, the prospects of recovery appeared bleaker, with no timeline on power restoration and homes and businesses in tatters. Six days after Hurricane Ida made landfall, hard-hit parts of Louisiana were still struggling to restore any sense of normalcy. Even around New Orleans, a continued lack of power for most residents made a sultry stretch of summer hard to bear and added to woes in the aftermath of Ida. Louisiana authorities searched Friday for a man they said shot another man to death after they both waited in a long line to fill up at a gas station in suburban New Orleans. Cantrell said the city would offer transportation starting Saturday to any resident looking to leave …