Feature Request: API Endpoint for originally accepted Events with environment data

### Problem Statement Currently, there is no direct API endpoint that provides originally accepted events along with their environment values. While the Stats API shows events that were accepted within a given time window and Discover/API reflects [what is currently in storage](https://github.com/getsentry/sentry/issues/80885#issuecomment-2489124344), there is a gap when it comes to retrieving event counts based on their originally accepted state while also filtering or grouping by environment. ### Solution Brainstorm _No response_ ### Product Area APIs