fix: align pisp v2 api specification with pisp sig documentation

[HtetShwe]

Summary

Addresses mojaloop/project#4505.

This PR aligns the PISP v2.0 API snippets with the PISP-SIG v2.0 design document for the audited account-linking discrepancies.

Changes

• Add missing GET /tppAccounts/{accountRequestId}/{SignedChallenge} endpoint.
• Rename tppAccounts callback path parameter from {ID} to {accountRequestId}.
• Align PISP account request schema field names:
  • partyItentifier -> partyIdInfo
  • authChannel -> authChannels
  • accounts -> accountList
• Add reusable accountRequestId and SignedChallenge path parameters.
• Rebuild generated PISP/admin OpenAPI artifacts.

Validation

• npm test passes locally.

• 

• Rebuilt with :

  • docs/thirdparty-admin-v2.0-openapi3-snippets.yaml
  • thirdparty/v2_0/openapi3/thirdparty-pisp-admin-api.yaml

Notes

• The known singular/plural naming inconsistency around /tppAccountRequest vs /tppAccountsRequest is left unchanged as it is explicitly out of scope in the issue.

[CLAassistant]

All committers have signed the CLA.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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