[KeylaMunnoz]

Fixes #191

Description

In JavaScript, the remainder operator (%) retains the sign of the dividend (e.g., -13 % 2 === -1). As a result, NumberAssertion.toBeOdd() was failing for negative odd numbers because it checked this.actual % 2 === 1.

Changes

• Fixed NumberAssertion.toBeOdd to check Math.abs(this.actual % 2) === 1.
• Documented parity behavior in JSDoc for both toBeEven and toBeOdd, clarifying that parity applies strictly to integers: non-integers, NaN, and Infinity are neither even nor odd, while 0 and -0 are considered even.
• Added comprehensive unit tests in NumberAssertion.test.ts covering negative odd numbers (-13), negative even numbers (-2), 0, -0, non-integers (1.5, -1.5), NaN, and Infinity.