fix: export Get<Model>GroupByPayload type in prisma-client generator

[nurul3101]

Summary

• Adds export keyword to the Get<Model>GroupByPayload type in client-generator-ts so it's accessible to users after generation

Fixes #29345

Problem

In the prisma-client generator (Prisma 7), Get<Model>GroupByPayload is defined as a private type in each model file:

// generated/models/MealInteraction.ts
export type MealInteractionGroupByArgs = { ... }        // ✅ exported
export type MealInteractionGroupByOutputType = { ... }   // ✅ exported
type GetMealInteractionGroupByPayload<T> = ...           // ❌ NOT exported

In the old prisma-client-js generator, this type was accessible via the Prisma namespace (Prisma.GetMealInteractionGroupByPayload<{...}>). With the new per-model-file architecture, the missing export makes it completely unreachable.

Fix

One-line change in packages/client-generator-ts/src/TSClient/Model.ts:

-type ${getGroupByPayloadName(model.name)}<T extends ${groupByArgsName}> = Prisma.PrismaPromise<
+export type ${getGroupByPayloadName(model.name)}<T extends ${groupByArgsName}> = Prisma.PrismaPromise<

Test plan

• Run prisma generate with prisma-client generator
• Verify GetMealInteractionGroupByPayload is now exported from the generated model file
• Verify it can be imported from the models barrel export
• Verify Awaited<GetMealInteractionGroupByPayload<{ by: [...], _count: {...} }>> resolves correctly

Summary by CodeRabbit

• New Features
  • The GroupBy payload type is now publicly exportable and can be imported for use in your TypeScript applications.

[CLAassistant]

All committers have signed the CLA.

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between e97b3e0 and 524e7f9.

📒 Files selected for processing (1)

• packages/client-generator-ts/src/TSClient/Model.ts

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Walkthrough

The change adds the export keyword to the Get<Model>GroupByPayload type alias declaration in the TypeScript client generator, making the type publicly accessible from generated model files.

Changes

Cohort / File(s)	Summary
GroupByPayload type export packages/client-generator-ts/src/TSClient/Model.ts	Added export keyword to the Get<Model>GroupByPayload type alias declaration, making the type publicly importable alongside other sibling exported types like GroupByArgs and GroupByOutputType.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: exporting the GetGroupByPayload type in the prisma-client generator, which matches the one-line modification in Model.ts.
Linked Issues check	✅ Passed	The PR fully addresses issue #29345 by adding the export keyword to the GetGroupByPayload type, making it publicly accessible as required by the linked issue.
Out of Scope Changes check	✅ Passed	The PR contains only the single necessary change to export the GroupByPayload type; no extraneous modifications are present.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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📝 Coding Plan

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