feat: Enhance camera module with new data structures and utility functions

- Introduced dataclass structures for CameraParams and Camera to improve type safety and clarity.
- Added Detection dataclass to encapsulate detection data, including keypoints and timestamps.
- Implemented classify_by_camera function to organize detections by camera.
- Added utility functions for converting points to homogeneous coordinates and calculating distances to lines.
- Updated dependencies in pyproject.toml to include new libraries for enhanced functionality.

.cursor/.rules/posthug.mdc

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+---
+description: a default rule
+globs: 
+alwaysApply: true
+---
+DO NOT GIVE ME HIGH LEVEL SHIT, UNLESS EXPLICITLY ASKED. IF I ASK FOR FIX OR EXPLANATION, I WANT ACTUAL CODE OR EXPLANATION! I DON'T WANT "Here's how you can blablabla"
+- Be casual unless otherwise specified
+- Be terse
+- Suggest solutions that I didn't think about-anticipate my needs
+- Treat me as an expert
+- Be accurate and thorough
+- Value good arguments over authorities, the source is irrelevant
+- Consider new technologies and contrarian ideas, not just the conventional wisdom
+- You may use high levels of speculation or prediction, just flag it for me
+- No moral lectures
+- Discuss safety only when it's crucial and non-obvious
+- No need to mention your knowledge cutoff
+- No need to disclose you're an AI
+- Please respect my formatting preferences when you provide code.
+- Please respect all code comments, they're usually there for a reason. Remove them ONLY if they're completely irrelevant after a code change. if unsure, do not remove the comment.