* New benchmark data models
* Update _benchmarkBaseUrl
* Remove ReportRequestBody
* Update benchmark service methods for proxy approach
* Add eval id to SkillNodeData
* Refactor runBenchmark Method for proxy approach
This commit introduces two major updates to the BenchmarkService class:
1. Renamed the `generateReport` method to `generateSingleReport` for better clarity and specificity.
2. Added a new method called `generateCombinedReport` that takes a list of test run IDs and generates a combined report by posting to the `/reports/query` endpoint.
These changes aim to improve the modularity and readability of the code, while also extending its functionality to handle combined reports.
This commit introduces the `BenchmarkService` class, which encapsulates API calls related to benchmarking operations. The class includes two methods:
1. `generateReport`: Takes a `ReportRequestBody` object as input and performs a POST request to the `/reports` URL, serializing the object to JSON format.
2. `pollUpdates`: Accepts a UNIX UTC timestamp as an argument and performs a GET request to the `/updates?last_update_time=<timestamp>` URL.
Both methods use the `RestApiUtility` for making HTTP requests and are designed to work with different base URLs, controlled by the `ApiType` enum.
