Allow for Repositories to be Added via API

### Problem Statement

Currently Repositories have to be added manually to Github Integration (current user use case is for Github Enterprise)

related to internal ticket [#161605]()

### Solution Brainstorm

Allow for repositories to be added programmatically via API to Github integration

### Product Area

APIs

We want to define a set of [lightweight metrics]() that SDKs can automatically collect for e.g. framework, language or platform, focusing only on signals that **do NOT overlap with Tracing**. Ideally these metrics should give a quick sense of app or runtime health, … while deeper investigation will still rely on traces or profiles.

Examples**:**

* Node.js runtime metrics (e.g., event loop delay, heap usage)
* Prisma-related metrics in Next.js
* Mobile CPU / memory usage to help surface potential ANRs or app hangs

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**Candidate Metrics (add more below)**

* …

*(please also add ideas, questions or examples in comments)*

The issue names no files, tests, or code entry points; start by reviewing the existing GitHub Integration repository-management flow and API conventions. Consult internal ticket #161605 and resolve the requested API scope, with GitHub Enterprise support, before defining what completion means.

Written by the indexing model from the issue text.