Update dependencies and configuration files

- Added new dependencies: `plotly`, `websocket`, `cffi`, `gevent`, `greenlet`, and `narwhals` to `pyproject.toml` and `uv.lock`.
- Updated `.gitignore` to exclude the `frontend/` directory.
- Modified configuration files to set `start_date` to `2025-01-01` in `config_bbrs.json` and `config_default.json`, with `stop_date` set to `null` in both.
- Introduced a new project metadata file `.cursor/project.mdc` for project documentation and management.

configs/config_bbrs.json

@@ -1,6 +1,6 @@
 {
-    "start_date": "2025-03-01",
-    "stop_date": "2025-03-15",
+    "start_date": "2025-01-01",
+    "stop_date": null,
     "initial_usd": 10000,
     "timeframes": ["1min"],
     "strategies": [

configs/config_default.json

@@ -1,5 +1,5 @@
 {
-    "start_date": "2025-03-01",
+    "start_date": "2024-01-01",
     "stop_date": null,
     "initial_usd": 10000,
     "timeframes": ["15min"],