add vcpu, memory, disk config

[Dingway98]

Note

Medium Risk
Moderate risk because it changes the sandbox create payload shape sent to the API and normalizes new wire fields on getDetail/list, which could break compatibility if server contracts differ.

Overview
Supports sandbox resource sizing by adding optional cpu, memoryMiB, and diskMiB to image-based sandboxes.create() while explicitly disallowing these fields for snapshot launches (runtime validation + type-level contract tests).

The service now serializes these options to the API’s wire names (vcpus, memMiB, diskSizeMiB) and normalizes getDetail()/list() responses back to the SDK’s cpu/memoryMiB/diskMiB fields; SandboxHandle exposes the new sizing getters. Documentation examples and package version are updated, and an e2e test verifies sizing is applied inside the runtime.

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