feat(platform): support payment create get tracker for platform

[apoorvdixit88]

Type of Change

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

Description

This PR adds the basic Platform-aware wiring for the payment create → get tracker flow. It is not the complete Platform payments feature — the goal is only to make the existing path work correctly when a Platform triggers a payment for a connected merchant as well as for a standard merchant.

To clarify the current behaviour with the Platform model introduced in this PR:

• Payment Intent → Processor level
• Payment Attempt → Processor level
• Business Profile → Processor level
• Merchant Connector Account (MCA) → Processor level
• Mandates → kept at Processor level for now (not part of this PR’s scope)
• Payment Link → kept at Processor level for now
• Payment-related Addresses → Processor level

Key changes:

• Replaces the earlier single-merchant assumption with Platform concept in get tracker for payments create
• Passes the correct Provider and Processor context to the modules involved in get_tracker
• Introduces the Platform wrapper (Provider + Processor)
• No API or DB schema changes — only internal plumbing

This sets the foundation for the full Platform behaviour to be completed in later PRs.

Additional Changes

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

Motivation and Context

Closes #10488

How did you test it?

• CI checks passing, no compilation issue
• Existing behaviour remained intact, no flows failing for standard merchants with these changes.
• Cypress Test Passing.

This can be tested for platform feature once the whole payment_create flow is done.

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/core/refunds.rs	88% smaller
crates/router/src/core/payments/operations/payment_status.rs	85% smaller
crates/router/src/core/payouts.rs	77% smaller
crates/router/src/core/utils.rs	45% smaller
crates/router/src/core/payments/operations/payment_create.rs	38% smaller
crates/router/src/core/payments/helpers.rs	20% smaller
crates/router/src/core/payment_link.rs	5% smaller
crates/api_models/src/payments.rs	1% smaller
crates/router/src/core/payments.rs	1% smaller
api-reference/v1/openapi_spec_v1.json	0% smaller
crates/router/src/core/admin.rs	0% smaller
crates/router/src/core/fraud_check/flows/fulfillment_flow.rs	0% smaller
crates/router/src/core/payment_methods/cards.rs	0% smaller
crates/router/src/core/payments/operations/payment_approve.rs	0% smaller
crates/router/src/core/payments/operations/payment_cancel.rs	0% smaller
crates/router/src/core/payments/operations/payment_cancel_post_capture.rs	0% smaller
crates/router/src/core/payments/operations/payment_capture.rs	0% smaller
crates/router/src/core/payments/operations/payment_complete_authorize.rs	0% smaller
crates/router/src/core/payments/operations/payment_confirm.rs	0% smaller
crates/router/src/core/payments/operations/payment_post_session_tokens.rs	0% smaller
crates/router/src/core/payments/operations/payment_reject.rs	0% smaller
crates/router/src/core/payments/operations/payment_session.rs	0% smaller
crates/router/src/core/payments/operations/payment_start.rs	0% smaller
crates/router/src/core/payments/operations/payment_update.rs	0% smaller
crates/router/src/core/payments/operations/payment_update_metadata.rs	0% smaller
crates/router/src/core/payments/operations/payments_extend_authorization.rs	0% smaller
crates/router/src/core/payments/operations/payments_incremental_authorization.rs	0% smaller
crates/router/src/core/payments/operations/tax_calculation.rs	0% smaller
crates/router/src/core/payments/transformers.rs	0% smaller
crates/router/src/core/payouts/helpers.rs	0% smaller
crates/router/src/core/payouts/validator.rs	0% smaller
crates/router/src/core/routing.rs	0% smaller
crates/router/src/core/unified_authentication_service.rs	0% smaller
crates/router/src/db/events.rs	0% smaller
crates/router/src/utils/user/sample_data.rs	0% smaller
crates/router/tests/payments2.rs	0% smaller
crates/storage_impl/src/lib.rs	0% smaller
crates/storage_impl/src/platform_wrapper.rs	0% smaller
crates/storage_impl/src/platform_wrapper/business_profile.rs	0% smaller
crates/storage_impl/src/platform_wrapper/payment_attempt.rs	0% smaller
crates/storage_impl/src/platform_wrapper/payment_intent.rs	0% smaller

[codecov]

Codecov Report

❌ Patch coverage is 5.63380% with 67 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@0582129). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...orage_impl/src/platform_wrapper/payment_attempt.rs	0.00%	16 Missing ⚠️
...torage_impl/src/platform_wrapper/payment_intent.rs	0.00%	16 Missing ⚠️
...rage_impl/src/platform_wrapper/business_profile.rs	0.00%	12 Missing ⚠️
crates/router/src/core/routing.rs	0.00%	10 Missing ⚠️
crates/router/src/core/payment_link.rs	0.00%	7 Missing ⚠️
crates/router/src/core/payouts.rs	0.00%	4 Missing ⚠️
crates/router/src/core/utils.rs	60.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10465   +/-   ##
=======================================
  Coverage        ?    6.46%           
=======================================
  Files           ?     1254           
  Lines           ?   311989           
  Branches        ?        0           
=======================================
  Hits            ?    20161           
  Misses          ?   291828           
  Partials        ?        0           

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[Sakilmostak]

can we have an interface instead of dangling function

[ShankarSinghC]

LGTM