fix: update generated code for @effect/platform compatibility

[kevinmichaelchen]

Summary

• Add Scope.Scope to Effect return types in generated client interfaces
• Add Scope import to generated client code
• Rename bodyFormDataRecord to bodyFormData (API renamed in @effect/platform)

Problem

When using the generated clients with recent versions of @effect/platform (0.77+), TypeScript throws errors because:

1. HttpClient.execute() now returns Effect<A, E, Scope> instead of Effect<A, E, never>
2. HttpClientRequest.bodyFormDataRecord was renamed to bodyFormData

Example error:

Type 'Effect<A, HttpClientError | E, Scope>' is not assignable to type 'Effect<any, any, never>'.
  Type 'Scope' is not assignable to type 'never'.

Changes

Generated interface return types

Before:

readonly "getUser": (id: string) => Effect.Effect<User, HttpClientError>

After:

readonly "getUser": (id: string) => Effect.Effect<User, HttpClientError, Scope.Scope>

Generated imports

Added:

import type * as Scope from "effect/Scope"

Form data method

Changed from bodyFormDataRecord to bodyFormData.

Test plan

• Generated clients typecheck with @effect/platform@0.77.7
• Generated clients build successfully