The speculative froth that helped to propel Bitcoin past $100,000 for the first time is spilling over into the long-battered crypto lending sector, with decentralized finance applications leading the way this time. Bitcoin’s funding rate — the premium paid by traders to open long positions in the perpetual futures market — skyrocketed in November, and is up more than 10 times from what it was in early June, indicating a rising thirst for leverage, according to digital-asset data tracker CoinGlas...