No "Copilot Requests" permission in GitHub Apps despite the Copilot SDK documentation saying otherwise

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## Why are you seeing this issue?
This is a [support escalation](https://github.com/github/support/blob/main/ticket-processes/escalating-outside-support.md#escalating-to-engineering-and-product-teams)! You can find out more about expectations on communications and response times in the [on-call docs](https://thehub.github.com/epd/engineering/incident-response/support-to-engineering-escalation-process/#support-escalation-response-procedures-and-best-practices). Thank you for doing your part to keep GitHub customers happy!

## Severity
_Note, for Sev1 issues always page the team first, using the PagerDuty information in the [service catalog](https://catalog.githubapp.com/services) and the command `.pager trigger N/A `. Opening an issue for a Sev2 incident can come later (and can be done by the available Escalation Engineer)._

- [ ] sev1 - **Engineering must _respond_, when paged, within 1 business day**
- [x] sev2 - **Engineering must _respond_ to this issue within 2 business days**
- [ ] sev3 - **Engineering must _respond_ to this issue within 2 business days**

## Service
[copilot-sdk](https://catalog.githubapp.com/services?service=copilot-sdk)

## Context
_:warning: Kindly provide all the requested information to ensure a prompt and efficient response. :warning:_

**GitHub Support Plan**

- [ ] Top 20
- [x] Premium Plus
- [ ] Premium
- [ ] Enterprise
- [ ] Free/Pro/Team

**GitHub Product(s) Impacted (check appropriate boxes and provide GHES version if applicable)**

- [x] GitHub.com (including GHEC)
- [ ] GitHub Enterprise Server.
- [ ] Running version: x.y.z
- [ ] Recently upgraded from version: x.y.z (upgrade date: yyyy-mm-dd)
- [ ] Proxima (ghe.com)
- [ ] Customer tenant: -

**Customer Impact**

If applicable, list the impacted entities:
- [ ] Enterprise: -
- [ ] Organization: -
- [ ] Repository: -
- [ ] User: -

**Zendesk Ticket(s), support bundles, and other relevant Issues and links**
- [4650604](https://github.zendesk.com/agent/tickets/4650604)

## Issue

Customer reports that while the [Other services and CI systems](https://docs.github.com/en/copilot/how-tos/copilot-sdk/auth/server-to-server-tokens#other-services-and-ci-systems) section of the [Server-to-server authentication](https://docs.github.com/en/copilot/how-tos/copilot-sdk/auth/server-to-server-tokens) page of the [Copilot SDK](https://docs.github.com/en/copilot/how-tos/copilot-sdk/) documentation says you should:

> Create a GitHub App with the **Copilot Requests** repository permission set to **Read & write**.

But when creating a GitHub App there doesn't seem to be any such repository permission in the UI.

**To Reproduce**

Steps to reproduce the behavior:
1. Go to `...`
2. Click on `...`
3. Scroll down to `...`
4. See error

**Expected behavior**

The documented **Read & write** **Copilot Requests** repository permission should exist.

**Screenshots**

N/A

**Additional context**

I have tried creating a GitHub App myself and did not see this permission.

cc:

@patniko

**Support Squad(s)**: @github/support-squad-ecosystem

Start with the linked Server-to-server authentication page, especially the “Other services and CI systems” section, and compare its Copilot Requests permission guidance with the GitHub App creation UI. Review the related Copilot SDK authentication documentation and support ticket context to establish the expected behavior. Done means the documentation and GitHub App permissions agree, with the customer-facing discrepancy addressed.

Scritto dal modello di indicizzazione a partire dal testo della issue.