Add tazapay bank account types to grid api surface

[JasonCWang]

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[JasonCWang]

• Add tazapay bank account types to grid api surface #120 👈 (View in Graphite)
• main

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[greptile-apps]

Greptile Summary

This PR adds support for 10 new Tazapay bank account types across multiple currencies: GBP (UK), CAD (Canada), HKD (Hong Kong), IDR (Indonesia), MYR (Malaysia), PHP (Philippines), SGD (Singapore), THB (Thailand), VND (Vietnam), and BWP (Botswana).

The implementation follows the existing pattern for bank account types:

• Created *AccountInfo.yaml schemas with currency-specific validation rules (account numbers, bank codes, routing identifiers)
• Created Payment*AccountInfo.yaml schemas extending the base with required reference fields for payment tracking
• Created *AccountExternalAccountInfo.yaml schemas adding beneficiary information for external accounts
• Updated enum lists and discriminator mappings in BankAccountOrWalletType.yaml, PaymentAccountOrWalletInfo.yaml, and ExternalAccountInfo.yaml
• Rebuilt bundled openapi.yaml files for both root and mintlify directories

Each account type includes appropriate validation constraints matching local banking standards (e.g., Canadian accounts require 5-digit transit numbers and 3-digit institution numbers, UK accounts require 8-digit account numbers with 6-digit sort codes).

Confidence Score: 5/5

• Safe to merge with no identified issues
• The PR is a straightforward schema addition that follows established patterns perfectly. All 10 new account types are implemented consistently with existing ones, include appropriate validation constraints, and are properly integrated into all discriminator mappings. The bundled OpenAPI files were correctly generated and are identical across both locations.
• No files require special attention

Important Files Changed

Filename	Overview
openapi/components/schemas/common/BankAccountOrWalletType.yaml	Added 10 new Tazapay bank account type enums (GBP, CAD, HKD, IDR, MYR, PHP, SGD, THB, VND, BWP)
openapi/components/schemas/common/PaymentAccountOrWalletInfo.yaml	Updated discriminator mappings to include all 10 new Payment* account info schemas
openapi/components/schemas/external_accounts/ExternalAccountInfo.yaml	Updated oneOf union and discriminator mappings to include all 10 new external account types
openapi.yaml	Bundled OpenAPI spec with all new account types properly integrated (664 line addition)
mintlify/openapi.yaml	Bundled OpenAPI spec copy for Mintlify documentation with identical changes

Sequence Diagram

sequenceDiagram
    participant Client
    participant GridAPI
    participant Tazapay
    
    Note over Client,Tazapay: External Account Creation Flow
    Client->>GridAPI: POST /customers/{id}/external-accounts
    Note right of Client: accountType: GBP_ACCOUNT, CAD_ACCOUNT,<br/>HKD_ACCOUNT, IDR_ACCOUNT, MYR_ACCOUNT,<br/>PHP_ACCOUNT, SGD_ACCOUNT, THB_ACCOUNT,<br/>VND_ACCOUNT, or BWP_ACCOUNT
    GridAPI->>GridAPI: Validate account schema<br/>(account number, bank code, etc.)
    GridAPI->>Tazapay: Register bank account
    Tazapay-->>GridAPI: Account registered
    GridAPI-->>Client: ExternalAccountInfo with accountType
    
    Note over Client,Tazapay: Payment Deposit Flow
    Client->>GridAPI: GET /customers/{id}/external-accounts/{accountId}
    GridAPI-->>Client: PaymentAccountInfo with reference
    Note right of Client: Client sends funds to provided<br/>bank details with reference code
    Client->>Tazapay: Bank transfer to account<br/>(via local banking rails)
    Tazapay->>GridAPI: Webhook: Incoming transaction
    GridAPI->>Client: Webhook: Payment received

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