Negative AI3 check is redundant, but also technically incorrect

[teor2345]

The negative check will give an incorrect result for values like -0.1, which is parsed as -0*AI3 + 0.1*AI3:

operator-reward-distributor/src/utils/amounts.ts

Line 28 in 0cf4c02

if (result <= 0n) throw new Error('Amount must be > 0');

But all negative values are excluded by the regexes, so this is not an issue in practice:

operator-reward-distributor/src/utils/amounts.ts

Line 21 in 0cf4c02

if (!/^[0-9]+(\.[0-9]+)?$/.test(s)) throw new Error('Invalid AI3 amount');

operator-reward-distributor/src/utils/amounts.ts

Line 8 in 0cf4c02

if (!/^[0-9]+$/.test(s)) throw new Error('Invalid amount: only digits allowed (shannons)');