feat(routing): elimination routing switch for toggling the feature

[prajjwalkumar17]

Type of Change

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

Description

This PR will add route to enable Elimination based dynamic routing for specific profiles.

curl --location --request POST 'http://localhost:8080/account/MERCHANT_ID/business_profile/PROFILE_ID/dynamic_routing/elimination/toggle?enable=none' \
--header 'api-key: API_KEY'

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?

Testing Scenarios:

1. enable elimination routing and check Profile table for the following value:

dynamic_routing_algorithm                             | 
{"success_based_algorithm":{"algorithm_id_with_timestamp":{"algorithm_id":"routing_2hS6Dn3XRjICecmNZg5s","timestamp":1732569416},"enabled_feature":"metrics"},"elimination_routing_algorithm":{"algorithm_id_with_timestamp":{"algorithm_id":"routing_nkajfnkjanf131231","timestamp":1732569427},"enabled_feature":"metrics"}}

can be enabled by this curl:

curl --location --request POST 'http://localhost:8080/account/MERCHANT_ID/business_profile/PROFILE_ID/dynamic_routing/elimination/toggle?enable=metrics' \
--header 'api-key: API_KEY'

2. disable elimination routing and check profile table(can be disabled by passing enable as none),
   Note: SR shouldn't be removed.

dynamic_routing_algorithm                             | 
{"success_based_algorithm":{"algorithm_id_with_timestamp":{"algorithm_id":"routing_2hS6Dn3XRjICecmNZg5s","timestamp":1732569416},"enabled_feature":"metrics"},"elimination_routing_algorithm":{"algorithm_id_with_timestamp":{"algorithm_id":null,"timestamp":1732569427},"enabled_feature":"none"}}

can be disabled by this curl:

curl --location --request POST 'http://localhost:8080/account/MERCHANT_ID/business_profile/PROFILE_ID/dynamic_routing/elimination/toggle?enable=none' \
--header 'api-key: API_KEY'

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  

Changed Files

File	Status
api-reference/openapi_spec.json	56% smaller
crates/router/src/routes/app.rs	41% smaller
crates/router/src/core/routing.rs	26% smaller
crates/router/src/core/routing/helpers.rs	9% smaller
crates/api_models/src/routing.rs	8% smaller
crates/storage_impl/src/redis/pub_sub.rs	3% smaller
crates/openapi/src/openapi.rs	1% smaller
api-reference-v2/openapi_spec.json	0% smaller
crates/api_models/src/events/routing.rs	0% smaller
crates/openapi/src/routes/routing.rs	0% smaller
crates/router/src/core/payments/routing.rs	0% smaller
crates/router/src/routes/routing.rs	0% smaller
crates/storage_impl/src/redis/cache.rs	0% smaller

[Chethan-rao]

Test both success_based and elimination routes and add relevant test cases