GitHub Code Quality Findings REST API [Public Preview]

### Value Prop
You can now access GitHub Code Quality findings programmatically through a REST API, giving you the same visibility in your own tools that you already have in the GitHub UI. Use these endpoints to pull CodeQL findings into dashboards, ticketing systems, or automated remediation workflows without manual exports. This makes it easier to track code quality at scale and integrate security data into the processes your team already uses.

### Expected Outcome
Developers and security teams gain a reliable, scriptable way to consume code quality data from GitHub, enabling richer integrations and faster response to findings. By exposing findings through a standard REST API, teams can build agentic workflows and custom tooling that act on results automatically—reducing the manual effort required to manage and remediate code quality issues across repositories.