Add CryptoQuant client and regime detection analysis

- Introduced `CryptoQuantClient` for fetching data from the CryptoQuant API.
- Added `regime_detection.py` for advanced regime detection analysis using machine learning.
- Updated dependencies in `pyproject.toml` and `uv.lock` to include `scikit-learn`, `matplotlib`, `plotly`, `requests`, and `python-dotenv`.
- Enhanced `.gitignore` to exclude `regime_results.html` and CSV files.
- Created an interactive HTML plot for regime detection results and saved it as `regime_results.html`.

.gitignore

@@ -169,4 +169,5 @@ cython_debug/
 #.idea/
 
 ./logs/
-*.csv
+*.csv
+research/regime_results.html