SAN RAMON, Calif. (AP) – Apple’s lucrative app store was alternately portrayed as a price-gouging monopoly and a hub of world-changing innovation during the preamble to a trial that may reshape the technological landscape. The contrasting portraits were drawn on Monday as lawyers for Apple and its foe, Epic Games, outlined their cases in an Oakland, California, federal court. While Apple depicted its app store as an invaluable service beloved by consumers and developers alike, Epic Games attacked it as a breakthrough idea that has morphed into an instrument of financial exploitation that illegally locks out competition. The trial revolves around the 15% to 30% commission that Apple collects on in-app purchases.