Module components 

Option C: Array-based components with bitflags

This replaces HashMap<Component, i32> with a fixed-size array and bitflags for tracking which components are known vs implied.

Benefits:

• Copy semantics (no heap allocation, no cloning cost)
• Cache-friendly (entire struct fits in ~64 bytes)
• Branch-free access patterns

Structs

ComponentFlags

Bitflags for tracking which components are set

FastComponents

Fast, stack-allocated date/time components

Enums

Component

Date/time components that can be parsed