- Replaced instances of `OllamaAPI` with `Ollama` across the codebase for consistency.
- Updated example code snippets in documentation to reflect the new class name.
- Enhanced metrics collection setup in the documentation.
- Added integration tests for the new `Ollama` class to ensure functionality remains intact.
Introduces Prometheus metrics support with a new MetricsRecorder and documentation (METRICS.md). Refactors OllamaAPI methods to improve error handling, reduce checked exceptions, and record metrics for API calls. Updates dependencies in pom.xml to include Prometheus and Guava. Adds MetricsRecorder class and updates tests for metrics integration.