This PR is to fix the cap boundary condition. Now a staking tx is considered to be overflow if the current tvl >= cap (previously is tvl > cap). For example, the cap is 10 BTCs and we have txs with 1, 9, and 2 BTCs, respectively, we will accept the first 2 transactions and the third one with 2 BTCs will be overflow
This PR is to fix the cap boundary condition. Now a staking tx is considered to be overflow if the current
tvl >= cap(previously istvl > cap). For example, the cap is 10 BTCs and we have txs with 1, 9, and 2 BTCs, respectively, we will accept the first 2 transactions and the third one with 2 BTCs will be overflow