Add terminalId and additionalInfo to DOKU QRIS generation

[mnindrazaka]

Extends the DOKU QRIS payment integration to include terminalId and additionalInfo fields in the qr-mpm-generate request, as required by the DOKU API.

Changes:

• Configuration: Added three new environment variables to Env struct:

  • DOKU_TERMINAL_ID (required): alphanumeric identifier for the terminal, 3–16 characters
  • DOKU_MERCHANT_POSTAL_CODE (optional): postal code for additionalInfo.postalCode
  • DOKU_QRIS_FEE_TYPE (optional): fee type for additionalInfo.feeType

• Request payload: Updated generateQrisRequest to include:

  • terminalId (mandatory)
  • validityPeriod (optional, derived from ExpiredAt input)
  • additionalInfo object (always sent, even when both postal code and fee type are unset)

• Validation: Made DOKU_TERMINAL_ID a required configuration field; validation fails if unset.

• Test coverage: Added tests verifying that terminalId, validityPeriod, and additionalInfo are correctly populated in the request; also verified that additionalInfo is always sent as an object even when empty.

• Stub server: Updated dokustub to validate the presence of terminalId and additionalInfo in incoming requests.

• Documentation: Updated .env.example and PRD to reflect the new required and optional fields.

https://claude.ai/code/session_011a51Vvk7CzJnGbiKhDCoZC

[vercel]

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Project	Deployment	Actions	Updated
gatherloop-order	Ready	Preview	Sep 11, 2026 3:54am UTC
gatherloop-pos	Ready	Preview	Sep 11, 2026 3:54am UTC
gatherloop-ui-storybook	Ready	Preview	Sep 11, 2026 3:54am UTC

[vercel]

Deployment failed for project gatherloop-order with the following error:

Resource is limited - try again in 24 hours (more than 100, code: "api-deployments-free-per-day").

Learn More: https://vercel.com/m-nindra-zakas-projects-ae6b8849?upgradeToPro=build-rate-limit

[vercel]

Deployment failed for project gatherloop-pos with the following error:

Resource is limited - try again in 24 hours (more than 100, code: "api-deployments-free-per-day").

Learn More: https://vercel.com/m-nindra-zakas-projects-ae6b8849?upgradeToPro=build-rate-limit

[mnindrazaka]

The two failing checks on 889c9a2 — Vercel – gatherloop-pos and Vercel – gatherloop-order — are not this PR's. Both report Resource is limited - try again in 24 hours (more than 100, code: "api-deployments-free-per-day"): the Vercel account hit its free-plan daily deployment cap, which affects every PR in the repo today regardless of its diff. This PR touches apps/api (Go) and workflow/doc files only; nothing in it changes either Next app's build. Both projects deployed green on the previous head, 80ec4e4.

There is no fix to port — it clears when the 24-hour window rolls over, or sooner on a plan upgrade. I have no Vercel access from here, so I can't re-run the deployments, and a re-run inside the window would fail identically anyway.

GitHub Actions is unaffected: apps/api tests passed on 80ec4e4 and is re-running on the current head; libs/ui tests is correctly skipped since no UI files changed.

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