feat(analytics): add sessionized_metrics and currency_conversion for refunds analytics

[maverox]

Type of Change

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

Description

• Add sessionized metrics module and implement backwards compatibility.
• Implement currency conversion for refunds analytics

Minor unrelated changes

• refactor inconsistent naming of fields in some places => commit
• fix sankey incorrect formula => commit

Fixes #6417

Additional Changes

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

Motivation and Context

• Refund metrics didn't had a sessionized_metrics module and implementation as were there in payments and payment_intents metrics
• Refund metrics weren't implementing currency conversion.

How did you test it?

curl --location 'http://localhost:8080/analytics/v1/org/metrics/refunds' \
--header 'Accept: */*' \
--header 'Accept-Language: en-GB,en-US;q=0.9,en;q=0.8' \
--header 'Connection: keep-alive' \
--header 'Content-Type: application/json' \
--header 'Origin: http://localhost:9000' \
--header 'QueryType: SingleStat' \
--header 'Referer: http://localhost:9000/' \
--header 'Sec-Fetch-Dest: empty' \
--header 'Sec-Fetch-Mode: cors' \
--header 'Sec-Fetch-Site: same-site' \
--header 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36' \
--header 'api-key: dev_r3kVZ4URj3fMiHhJJuhHOVqteaXwKyEMGCaFo6PiCS6S9vZsb0ErV4kCVqogM60H' \
--header 'authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiMDZlOGRmZWYtMzI0Zi00Yjc0LTg2MTItYzdkZjNhOGZmZTcyIiwibWVyY2hhbnRfaWQiOiJtZXJjaGFudF8xNzI3NDM0NTkzIiwicm9sZV9pZCI6Im9yZ19hZG1pbiIsImV4cCI6MTczMTA4ODY3NSwib3JnX2lkIjoib3JnXzl3Y0kxQ2hTOGVEdnRRQmRXak9IIiwicHJvZmlsZV9pZCI6InByb19FNW5lek43YjZUbVB1WlUzbEU1VSJ9.S0OBbdBmFjnRC-1hP-QTVA2fzQESHIvou_8dtmFDCgY' \
--header 'sec-ch-ua: "Chromium";v="130", "Google Chrome";v="130", "Not?A_Brand";v="99"' \
--header 'sec-ch-ua-mobile: ?0' \
--header 'sec-ch-ua-platform: "macOS"' \
--data '[
    {
        "timeRange": {
            "startTime": "2024-10-15T18:30:00Z",
            "endTime": "2024-11-07T09:30:00Z"
        },
        "mode": "ORDER",
        "source": "BATCH",
        "metrics": [       
            "sessionized_refund_processed_amount"
        ],
        "delta": true
    }
]'

For sankey changes

curl --location 'http://localhost:8080/analytics/v1/profile/metrics/sankey' \
--header 'accept: */*' \
--header 'accept-language: en-US,en;q=0.9' \
--header 'api-key: dev_r3kVZ4URj3fMiHhJJuhHOVqteaXwKyEMGCaFo6PiCS6S9vZsb0ErV4kCVqogM60H' \
--header 'authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiMDZlOGRmZWYtMzI0Zi00Yjc0LTg2MTItYzdkZjNhOGZmZTcyIiwibWVyY2hhbnRfaWQiOiJtZXJjaGFudF8xNzI3NDM0NTkzIiwicm9sZV9pZCI6Im9yZ19hZG1pbiIsImV4cCI6MTczMTA4ODY3NSwib3JnX2lkIjoib3JnXzl3Y0kxQ2hTOGVEdnRRQmRXak9IIiwicHJvZmlsZV9pZCI6InByb19FNW5lek43YjZUbVB1WlUzbEU1VSJ9.S0OBbdBmFjnRC-1hP-QTVA2fzQESHIvou_8dtmFDCgY' \
--header 'content-type: application/json' \
--header 'origin: https://integ.hyperswitch.io' \
--header 'priority: u=1, i' \
--header 'referer: https://integ.hyperswitch.io/dashboard/new-analytics-payment' \
--header 'sec-ch-ua: "Chromium";v="130", "Google Chrome";v="130", "Not?A_Brand";v="99"' \
--header 'sec-ch-ua-mobile: ?0' \
--header 'sec-ch-ua-platform: "macOS"' \
--header 'sec-fetch-dest: empty' \
--header 'sec-fetch-mode: cors' \
--header 'sec-fetch-site: same-origin' \
--header 'user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36' \
--data '{"startTime":"2024-10-30T18:30:00Z","endTime":"2024-11-08T11:16:00Z"}'

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
crates/router/src/analytics.rs	63% smaller
crates/analytics/src/refunds/core.rs	35% smaller
crates/analytics/src/payment_intents/core.rs	29% smaller
crates/analytics/src/refunds/accumulator.rs	8% smaller
crates/analytics/src/payments/accumulator.rs	0% smaller
crates/analytics/src/payments/core.rs	0% smaller
crates/analytics/src/refunds/metrics.rs	0% smaller
crates/analytics/src/refunds/metrics/refund_processed_amount.rs	0% smaller
crates/analytics/src/refunds/metrics/sessionized_metrics/mod.rs	0% smaller
crates/analytics/src/refunds/metrics/sessionized_metrics/refund_count.rs	0% smaller
crates/analytics/src/refunds/metrics/sessionized_metrics/refund_processed_amount.rs	0% smaller
crates/analytics/src/refunds/metrics/sessionized_metrics/refund_success_count.rs	0% smaller
crates/analytics/src/refunds/metrics/sessionized_metrics/refund_success_rate.rs	0% smaller
crates/api_models/src/analytics.rs	0% smaller
crates/api_models/src/analytics/payments.rs	0% smaller
crates/api_models/src/analytics/refunds.rs	0% smaller
crates/api_models/src/events.rs	0% smaller