chore(grid-visualizer): sync with /quotes deprecation

[claude]

Summary

• Update Grid Visualizer code generator to use POST /quotes for all transfers
• Remove deprecated /transfer-in and /transfer-out endpoint code paths
• Same-currency, non-JIT transfers now use immediatelyExecute: true to combine quote creation and execution

This syncs the Grid Visualizer with the OpenAPI schema changes from #856 which deprecated /transfer-in and /transfer-out in favor of the unified /quotes endpoint.

Areas updated

Grid Visualizer (components/grid-visualizer/src/lib/code-generator.ts)

• All transfer flows now generate /quotes API calls instead of the deprecated endpoints
• Same-currency, pre-funded transfers use immediatelyExecute: true for a single-request flow
• Step titles and notes updated to reflect the new behavior

Documentation - Already up to date

• Changelog documents the deprecation
• Quote system guide includes deprecation notice
• No guides recommend the deprecated endpoints

Kotlin Sample - Already up to date

• Uses /quotes endpoint, not deprecated endpoints

Test plan

• Verify Grid Visualizer generates correct API calls for same-currency internal→external transfer
• Verify Grid Visualizer generates correct API calls for cross-currency transfers
• Verify JIT funding flows still generate payment instruction steps

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
grid-flow-builder	Ready	Preview	Aug 25, 2026 8:20am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
grid-wallet-demo	Ignored		Aug 25, 2026 8:20am

[greptile-apps]

Greptile Summary

The PR migrates Grid Visualizer transfer examples from the deprecated transfer endpoints to the unified quote API.

• Generates POST /quotes for every transfer flow.
• Uses immediatelyExecute for same-currency, non-JIT transfers and suppresses the separate execution step.
• Preserves JIT payment-instruction steps, but drops the outbound remittance-information example during migration.

Confidence Score: 4/5

The migration should not merge until the generated outbound quote preserves the recipient remittance reference carried by the former transfer-out request.

The unified quote request supports remittanceInformation, but the generator drops it for the migrated same-currency outbound flow, changing the payment details shown to integrators.

Files Needing Attention: components/grid-visualizer/src/lib/code-generator.ts

Important Files Changed

Filename	Overview
components/grid-visualizer/src/lib/code-generator.ts	Migrates all generated transfer flows to quotes, but the replacement outbound quote body omits the previously demonstrated remittance information.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[Selected transfer] --> B{Same currency and non-JIT?}
  B -->|Yes| C[POST /quotes with immediatelyExecute]
  B -->|No| D[POST /quotes]
  D --> E{JIT funding?}
  E -->|Yes| F[Follow paymentInstructions]
  E -->|No| G[POST /quotes/id/execute]

Loading

Prompt To Fix All With AI

### Issue 1
components/grid-visualizer/src/lib/code-generator.ts:223-229
**Outbound remittance reference is dropped**

When generating a same-currency, pre-funded internal-to-external transfer, the replacement quote body omits `remittanceInformation`, causing the invoice/reference previously sent through ACH Addenda, RTP/FedNow remittance, or wire OBI to be lost.

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

_{Reviews (1): Last reviewed commit: "chore(grid-visualizer): use /quotes for ..." | Re-trigger Greptile}

[greptile-apps]

Outbound remittance reference is dropped

When generating a same-currency, pre-funded internal-to-external transfer, the replacement quote body omits remittanceInformation, causing the invoice/reference previously sent through ACH Addenda, RTP/FedNow remittance, or wire OBI to be lost.

Knowledge Base Used: Payments, quotes, and transfers API

Prompt To Fix With AI

This is a comment left during a code review.
Path: components/grid-visualizer/src/lib/code-generator.ts
Line: 223-229

Comment:
**Outbound remittance reference is dropped**

When generating a same-currency, pre-funded internal-to-external transfer, the replacement quote body omits `remittanceInformation`, causing the invoice/reference previously sent through ACH Addenda, RTP/FedNow remittance, or wire OBI to be lost.

**Knowledge Base Used:** [Payments, quotes, and transfers API](https://app.greptile.com/lightspark/-/custom-context/knowledge-base/lightsparkdev/grid-api/-/docs/payments-and-quotes-api.md)

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.