Rewrite README: accurate description of dataset content, pipeline, and data format

Update README: 145 episodes, updated task distribution after deletions

Update README: correct task distribution (12 tasks), episode ranges

Update README: 147 episodes (removed 147-149), updated schema & structure

Remove depth quality metrics from README

Clean up README

Simplify Data Integrity section

Remove confidence scores and hybrid approach text

Update accuracy to 5mm for occluded joints

Update README with hybrid occlusion-aware pose estimation details

Fix Data Integrity statement: frozen values, not NaN

Add data integrity statement about NaN for missing hand tracking

Add visualizer tips and hand landmark reference

Remove capture setup section

Remove limitations section, update contact with email

Update README with motion annotations docs, usage examples, and known limitations

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