refactor(router): modify net_amount to be a struct in the domain model of payment_attempt and handle amount changes across all flows

[sai-harsha-vardhan]

Type of Change

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

Description

modify net_amount to be a struct in the domain model of payment_attempt and handle amount changes across all flows

Main PR - #6252

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?

Test cases in main PR

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 36 of 36 files.

Overall, the semantic diff is 11% smaller than the GitHub diff.

File Information

	Filename	Status
✔️	crates/storage_impl/src/payments/payment_attempt.rs	0.9% smaller
✔️	crates/storage_impl/src/mock_db/payment_attempt.rs	Analyzed
✔️	crates/router/src/types.rs	28.31% smaller
✔️	crates/router/src/types/transformers.rs	72.22% smaller
✔️	crates/router/src/types/storage/payment_attempt.rs	38.49% smaller
✔️	crates/router/src/services/kafka/payment_attempt.rs	42.97% smaller
✔️	crates/router/src/services/kafka/payment_attempt_event.rs	42.97% smaller
✔️	crates/router/src/core/payment_link.rs	51.01% smaller
✔️	crates/router/src/core/payments.rs	26.27% smaller
✔️	crates/router/src/core/refunds.rs	Analyzed
✔️	crates/router/src/core/payments/helpers.rs	5.0% smaller
✔️	crates/router/src/core/payments/retry.rs	16.45% smaller
✔️	crates/router/src/core/payments/routing.rs	Analyzed
✔️	crates/router/src/core/payments/transformers.rs	30.08% smaller
✔️	crates/router/src/core/payments/types.rs	Analyzed
✔️	crates/router/src/core/payments/operations/payment_complete_authorize.rs	Analyzed
✔️	crates/router/src/core/payments/operations/payment_confirm.rs	53.92% smaller
✔️	crates/router/src/core/payments/operations/payment_create.rs	17.2% smaller
✔️	crates/router/src/core/payments/operations/payment_response.rs	86.94% smaller
✔️	crates/router/src/core/payments/operations/payment_update.rs	1.84% smaller
✔️	crates/router/src/core/payments/operations/payments_incremental_authorization.rs	55.58% smaller
✔️	crates/router/src/core/payment_methods/cards.rs	39.09% smaller
✔️	crates/router/src/core/payment_methods/surcharge_decision_configs.rs	1.46% smaller
✔️	crates/router/src/core/fraud_check/flows/checkout_flow.rs	81.18% smaller
✔️	crates/router/src/core/fraud_check/flows/fulfillment_flow.rs	77.04% smaller
✔️	crates/router/src/core/fraud_check/flows/record_return.rs	81.18% smaller
✔️	crates/router/src/core/fraud_check/flows/sale_flow.rs	81.18% smaller
✔️	crates/router/src/core/fraud_check/flows/transaction_flow.rs	81.18% smaller
✔️	crates/hyperswitch_domain_models/src/router_request_types.rs	5.58% smaller
✔️	crates/hyperswitch_domain_models/src/payments/payment_attempt.rs	1.62% smaller
✔️	crates/diesel_models/src/payment_attempt.rs	Analyzed
✔️	crates/diesel_models/src/query/payment_attempt.rs	Analyzed
✔️	crates/api_models/src/payment_methods.rs	Analyzed
✔️	crates/api_models/src/payments.rs	Analyzed
✔️	api-reference-v2/openapi_spec.json	25.0% smaller
✔️	api-reference/openapi_spec.json	25.0% smaller

[SanchithHegde]

Do we allow updating surcharge and tax amounts without updating net amount? Should we include net_amount here?

[sai-harsha-vardhan]

Will take up this fix