Record.fromIterableBy is not dual/curried (awkward in pipe)

[jasonkuhrt]

What happened?

Record.fromIterableBy is currently data-first only.

With Effect APIs, many functions are dual/curried so they compose naturally in pipe. For fromIterableBy, I can’t do the equivalent data-last style and have to introduce an adapter lambda.

Current (works, but less ergonomic):

pipe(
  rows,
  (rows) => Record.fromIterableBy(rows, Struct.get("authEmail")),
)

Attempted style (does not type-check):

pipe(
  rows,
  Record.fromIterableBy(Struct.get("authEmail")),
)

This breaks pipeline readability and consistency with other dual APIs.

Repro context

• Effect version: 3.19.3

What would you like?

Add a dual/curried overload for Record.fromIterableBy (and possibly fromIterableWith for consistency):

export declare const fromIterableBy: {
  <A, K extends string | symbol>(
    f: (a: A) => K,
  ): (items: Iterable<A>) => Record<ReadonlyRecord.NonLiteralKey<K>, A>

  <A, K extends string | symbol>(
    items: Iterable<A>,
    f: (a: A) => K,
  ): Record<ReadonlyRecord.NonLiteralKey<K>, A>
}

That would allow:

pipe(rows, Record.fromIterableBy(Struct.get("authEmail")))

Why this matters

This is mostly an ergonomics / consistency improvement, but it also avoids confusing type errors when users assume dual behavior in pipelines.