Fix StaticUnion regression for non-tuple Array<TSchema>

[jackyzha0]

In typebox 0.34, UnionStatic used a mapped-index-signature pattern {[K in keyof T]: Static<T[K]>}[number] that resolved correctly for both tuple types and general TSchema[] arrays.

In 1.x, StaticUnion was rewritten using head/tail destructuring with a Result = never default. Because TSchema[] does not match [Left, ...Right] (the array may be empty), Static<TUnion<TSchema[]>> falls through to never. This regresses any code that builds a union from a variable typed as a plain array:

const errors = [Type.Object(...), Type.Object(...)];
const schema = Type.Union(errors);
type T = Static<typeof schema>; // resolves to `never` instead of the union

Fix: add an Array<infer Item extends TSchema> fallback that infers the element type when the input is not a tuple. Tuples still go through the fast recursive path; the new branch only fires for general arrays.

Adds static tests covering:

• inline tuple inference (existing behaviour)
• generic TSchema[] (must not resolve to never)
• narrowed Array<TLiteral<1|2|3>> (must resolve to 1|2|3)