Generate a curated operation overload set, not the full cross-product

[OmarAlJarrah]

Problem

Emitting every overload combination (the reference SDK has ~12 retrieve overloads per operation) multiplies across raw/cooked/sync/async into a permanent explicit-API + binary-compat tax.

Proposed change

Generate one canonical method plus a small curated overload set, leaning on Kotlin default arguments.

Acceptance

• Overload policy documented
• Generated surface stays minimal

Dependencies

• Related Generate two-tier raw/cooked service methods #55 — service-method codegen shape

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Priority: medium · Effort: medium