docs: retract stale '100% presence accuracy' headlines (single-class; superseded by honest 82.3% held-out triplet metric, RuView #882)

v2: honest re-benchmark + converged encoder (csi-embed-v2-metrics.json)

v2: honest re-benchmark + converged encoder (csi-embed-v2.py)

v2: honest re-benchmark + converged encoder (csi-embed-v2-int4.bin)

v2: honest re-benchmark + converged encoder (csi-embed-v2.safetensors)

v2: honest re-benchmark + converged encoder (README.md)

Improved model card: benchmarks, architecture, 17 apps

Upload WiFi-DensePose pretrained models (v0.6.0)

initial commit