A Lyft tent for recruiting drivers outside a Jiffy Lube (Smith Collection/Getty Images)Lyft and DoorDash just reported their first years with net profits. Instacart is likely next. For a long time, it was unclear when or whether gig economy companies could actually make money. Not anymore. After racking up hundreds of millions in losses since going public more than four years ago, DoorDash just reported $123 million of net income for 2024. Lyft, an early entrant to the rideshare scene, also just...