feat: migrate Rokt kit to Rokt SDK 5.x and remove MpRoktEventCallback

[jamesnrokt]

Background

mParticle Android SDK 6.0 adopts Rokt Android SDK 5.x. The 5.x release consolidates the legacy RoktCallback / RoktInitCallback / UnloadReasons callbacks behind a single event-driven Flow<RoktEvent> surface and removes several APIs the kit relied on (Rokt.execute, RoktWidgetDimensionCallBack.onMarginChanged, etc.). See Rokt's upstream MIGRATING.md for the full guide.

What Has Changed

Rokt SDK 5.x adoption (kit only):

• com.rokt:roktsdk bumped 4.14.0 → 5.1.0.
• Rokt.execute(...) replaced with Rokt.selectPlacements(...).
• RoktEvent.id field renamed to RoktEvent.identifier; SDK-side CartItemInstantPurchase.placementId → identifier.
• com.rokt.roktsdk.RoktLayout invocation switched to the new onEvent: (RoktEvent) -> Unit signature.
• Removed obsolete overrides for Rokt.RoktCallback, Rokt.RoktInitCallback, Rokt.UnloadReasons, and RoktWidgetDimensionCallBack.onMarginChanged (all removed in 5.x).

mParticle public-API cleanup (breaking):

• Deleted com.mparticle.MpRoktEventCallback and com.mparticle.UnloadReasons. Customers should consume Rokt.events(identifier): Flow<RoktEvent> instead.
• Dropped the callbacks: MpRoktEventCallback? parameter from com.mparticle.Rokt.selectPlacements.
• Dropped mpRoktEventCallback from RoktKitApi.selectPlacements, RoktKitApiImpl.selectPlacements, KitIntegration.RoktListener.selectPlacements, and RoktKit.selectPlacements.
• RoktKit.runComposableWithCallback renamed to prepareComposableAttributes; the mParticle RoktLayout composable no longer takes a callback param.

mParticle naming alignment with Rokt 5.x (breaking):

• com.mparticle.RoktEvent.*.placementId renamed to identifier on every event class (including the named param on CartItemInstantPurchase).
• Rokt.purchaseFinalized(placementId, …, status) renamed to (identifier, …, success); propagated through RoktKitApi, RoktKitApiImpl, KitIntegration.RoktListener, and RoktKit.

Screenshots/Video

N/A

Checklist

• I have performed a self-review of my own code.
• I have made corresponding changes to the documentation.
• I have added tests that prove my fix is effective or that my feature works.
• I have tested this locally.

[cursor]

PR Summary

High Risk
High risk because this upgrades the embedded Rokt SDK to 5.x and makes breaking API changes across the public Rokt surface, kit interfaces, and event model, which could impact partner integration behavior and downstream compilation.

Overview
Migrates the Rokt integration to com.rokt:roktsdk:5.1.0, updating the kit to use Rokt.selectPlacements/Flow<RoktEvent> and adapting event mapping to the new identifier-based event fields.

Removes the legacy callback-based API (MpRoktEventCallback/UnloadReasons) and drops the callback parameter from Rokt.selectPlacements and the internal kit bridge (RoktKitApi, RoktListener, RoktKitApiImpl, Compose RoktLayout).

Aligns naming and signatures with Rokt 5.x (e.g., purchaseFinalized(identifier, ..., success), event payload fields), removes the obsolete onMarginChanged dimension callback, and updates unit tests accordingly.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[denischilik]

The types were moved from mParticle to Rokt Kit. I would suggest merging this PR first: #700