refactor(open_banking): Added merchant data update in mca update

[Sarthak1799]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

This PR does -

• In the PIS flow, in merchant connector update, we didn't collect additional_merchant_data in the update req, have fixed that. Have also added relevant logic in MCA update core to process the data collected.

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

How did you test it?

1. MCA create for Plaid -

curl --location --request POST 'http://localhost:8080/account/merchant_1724231900/connectors' \
--header 'api-key: test_admin' \
--header 'Content-Type: application/json' \
--data-raw '{
    "connector_type": "payment_processor",
    "connector_name": "plaid",
    "connector_account_details": {
        "auth_type": "BodyKey",
        "api_key": "something",
        "key1": "something"
    },
    "test_mode": false,
    "disabled": false,
    "payment_methods_enabled": [
        {
            "payment_method": "open_banking",
            "payment_method_types": [
                {
                    "payment_method_type": "open_banking_pis",
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "accepted_currencies": {
                        "type": "enable_only",
                        "list": [
                            "EUR",
                            "GBP"
                        ]
                    },
                    "minimum_amount": 0
                }
            ]
        }
    ],
    "metadata": {
        "city": "NY",
        "unit": "246"
    }
}'

2. Update MCA with additional_merchant_data

curl --location --request POST 'http://localhost:8080/account/merchant_1724231900/connectors/mca_HaQGes1t8LKrBYOF6OGj' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'api-key: dev_cZOhqwgSt6Dl6A95YW10eWHV6LI9h2mdQ9JtDB8kxMJ4YCjFEwf0g5O2WfDnrgrW' \
--data-raw '{
    "connector_type": "payment_processor",
    "additional_merchant_data": {
        "open_banking_recipient_data": {
            "account_data": {
                "iban": {
                    "iban": "IT38R7004962566080427G36725",
                    "name": "merchant_name"
                }
            }
        }
    }
}'

Resposne -

{
    "connector_type": "payment_processor",
    "connector_name": "plaid",
    "connector_label": "plaid_GB_default",
    "merchant_connector_id": "mca_HaQGes1t8LKrBYOF6OGj",
    "profile_id": "pro_iWX6p7sOYZnOE10swzA2",
    "connector_account_details": {
        "auth_type": "BodyKey",
        "api_key": "something",
        "key1": "something"
    },
    "payment_methods_enabled": [
        {
            "payment_method": "open_banking",
            "payment_method_types": [
                {
                    "payment_method_type": "open_banking_pis",
                    "payment_experience": "redirect_to_url",
                    "card_networks": null,
                    "accepted_currencies": {
                        "type": "enable_only",
                        "list": [
                            "EUR",
                            "GBP"
                        ]
                    },
                    "accepted_countries": null,
                    "minimum_amount": 0,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        }
    ],
    "connector_webhook_details": null,
    "metadata": {
        "city": "NY",
        "unit": "246"
    },
    "test_mode": false,
    "disabled": false,
    "frm_configs": null,
    "business_country": null,
    "business_label": null,
    "business_sub_label": null,
    "applepay_verified_domains": null,
    "pm_auth_config": null,
    "status": "active",
    "additional_merchant_data": {
        "open_banking_recipient_data": {
            "account_data": {
                "iban": {
                    "iban": "IT38R7004962566080427G36725",
                    "name": "merchant_name",
                    "connector_recipient_id": "recipient-id-sandbox-3fafd4a5-269e-4ebc-9f9b-6f18c8f91a73"
                }
            }
        }
    }
}

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

[semanticdiff-com]

Review changes with SemanticDiff.

Analyzed 8 of 8 files.

Overall, the semantic diff is 1% smaller than the GitHub diff.

	Filename	Status
✔️	crates/router/src/core/admin.rs	0.49% smaller
✔️	crates/router/src/core/verification/utils.rs	Analyzed
✔️	crates/router/src/core/connector_onboarding/paypal.rs	Analyzed
✔️	crates/hyperswitch_domain_models/src/merchant_connector_account.rs	Analyzed
✔️	crates/diesel_models/src/merchant_connector_account.rs	Analyzed
✔️	crates/api_models/src/admin.rs	Analyzed
✔️	api-reference-v2/openapi_spec.json	Analyzed
✔️	api-reference/openapi_spec.json	Analyzed

[ThisIsMani]

Dashboard specific changes looks fine.