Sensor Fusion

TODO:

• [ ] Add page-specific notes for roadmap/sensor-fusion.md after inspecting the real project files.
• [ ] Cross-link Sensor Fusion to the most relevant code, data, testing, and safety pages.
• [ ] State what is already proven before listing future work.
• [ ] Separate near-term fixes from long-term research ideas.
• [ ] List dependencies, risks, and test gates for this next step.
• [ ] Add what data, hardware, or code must change.
• [ ] Add how success would be measured.
• [ ] Keep future claims clearly marked as planned, not completed.
• [ ] Add the exact source path, artifact path, or hardware component name.
• [ ] Add the command or procedure needed to reproduce the result.
• [ ] Add expected inputs and outputs.
• [ ] Add the settings, flags, constants, or calibration values that control it.
• [ ] Add known failure modes and how they appear in logs, video, or field behavior.
• [ ] Add validation steps and pass/fail criteria.
• [ ] Add links to related pages that a public reader should follow next.