SANTA CLARA, Calif. — Every gambler knows the house always wins. So, maybe this was the Lions’ destiny, after all. Dan Campbell, an inveterate risk-taker, saw his big stack of chips dwindling, decided to double down, and then busted. That’s how it often goes, doesn’t it? That’s how the wild swings of fortune happen. It’s how you go from winning big to losing it all in what feels like a heartbeat. It’s also how a coach was left to say, glumly, Sunday night, “You feel like you get your heart ripped out.” And while that’s not the only explanation for Detroit’s second-half collapse in the NFC cham…