wip(mbe): setup flow for eddsa initialization

[mohammadalfaiyazbitgo]

Ticket: WP-4758

[Copilot]

Pull Request Overview

This PR lays the groundwork for on-premises MPC (TSS) wallet generation by introducing initialization/finalization endpoints and wiring them into the existing generate-wallet route.

• Adds handleGenerateOnPremMpcWallet for TSS wallet flow and updates the router to dispatch by multisigType.
• Implements initMpcKeyGeneration/finalizeMpcKeyGeneration in EnclavedExpressClient and corresponding API spec routes.
• Extends tests to simulate the TSS initialization call and adds a WIP integration log document.

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/masterBitgoExpress/generateWallet.ts	Renamed on-chain handler, added handleGenerateOnPremMpcWallet
src/masterBitgoExpress/enclavedExpressClient.ts	Added initMpcKeyGeneration and finalizeMpcKeyGeneration
src/enclavedBitgoExpress/routers/enclavedApiSpec.ts	Defined /mpc/initialize and /mpc/finalize spec and routes
src/tests/masterBitgoExpress/generateWallet.test.ts	Added test for TSS wallet initialization call
src/tests/masterBitgoExpress/.wip.md	Work-in-progress notes and example logs

Comments suppressed due to low confidence (3)

src/tests/masterBitgoExpress/generateWallet.test.ts:15

• [nitpick] The test variable eddsaCoin is misleading in the context of an MPC/TSS flow; consider renaming it to mpcCoin or tssCoin for clarity.

  const eddsaCoin = 'tsol';

src/masterBitgoExpress/generateWallet.ts:135

• RequestTracer is referenced but never imported; please add import { RequestTracer } from '@bitgo/sdk-core'; to avoid a ReferenceError.

  const reqId = new RequestTracer(); // Create tracer without storing reference since it's not used

src/tests/masterBitgoExpress/.wip.md:1

• [nitpick] This WIP markdown contains extensive implementation notes and example logs that clutter the test suite; consider removing it or relocating to a separate docs directory.

# Notes

[Copilot]

[nitpick] Importing NotImplementedError from 'bitgo' may be inconsistent with other modules using @bitgo/sdk-core; align the import source to avoid mismatches.

Suggested change

	import { NotImplementedError } from 'bitgo';
	import { NotImplementedError } from '@bitgo/sdk-core';

[mohammadalfaiyazbitgo]

moved to #35