v1.2.0

Added

Shared (Primitive, Array)

• default(value) / getDefault() — fallback values for undefined inputs
• nullable() / nonNullable(message?) — control whether null is accepted
• defined(message?) / optional() / notRequired() — control whether undefined is accepted
• isValid(value) / isValidSync(value) — boolean validation helpers

String

• uuid(message?) — UUID format validation (v1, v4, v5)
• length(size, message?) — exact string length (alias for exactLength())

Array

• length(size, message?) — exact array length validation

Object

• pick(keys) / omit(keys) — schema reuse helpers
• stripUnknown() — remove unknown keys during validation
• getDefault() — collect defaults from child field schemas
• isValid(value) / isValidSync(value) — boolean validation helpers