ESP32-S3 CSI Firmware v0.5.1 — Watchdog Fix + Edge Detection

What's Changed

Bug Fixes

Firmware: Watchdog crash on busy LANs (#321)

• edge_dsp task now batch-limits to 4 frames before a 20ms yield
• Fixed idle-path busy-spin where pdMS_TO_TICKS(5)==0 at 100Hz tick rate
• Added ring buffer drop counter (drops=N in serial log) for diagnostics
• QEMU validated: All 11 CI jobs pass (7 configs + fuzz + swarm + NVS + build)

Sensing Server: No detection from edge vitals (#323)

• ESP32 nodes running Tier 2+ edge DSP now trigger full sensing_update in the UI
• Previously, vitals packets (magic 0xC5110002) were broadcast but never generated person detection
• Breathing animation now works from edge vitals (non-zero breathing_band_power)

Python Package: ModuleNotFoundError (#314)

• Added wifi_densepose/ package with WiFiDensePose facade class
• from wifi_densepose import WiFiDensePose now works as documented in README

CI Validation

Job	Status
Build Espressif QEMU	✅
NVS Matrix Generation	✅
Fuzz Testing (ADR-061 Layer 6)	✅
Swarm Test (ADR-062)	✅
QEMU Test — default	✅
QEMU Test — edge-tier0	✅
QEMU Test — edge-tier1	✅
QEMU Test — tdm-3node	✅
QEMU Test — boundary-min	✅
QEMU Test — boundary-max	✅
QEMU Test — full-adr060	✅

Upgrade Notes

• Firmware: Reflash required for the watchdog fix. Build from source using ESP-IDF v5.4.
• Sensing server: Rebuild from main — cargo build --release -p wifi-densepose-sensing-server
• Python: pip install -e . from repo root, or from wifi_densepose import WiFiDensePose

Full Changelog: v0.5.0-esp32...v0.5.1-esp32