feat: cross-node fusion + DynamicMinCut + RSSI tracking + CHANGELOG (v0.5.3)

.claude-flow/.trend-cache.json

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CHANGELOG.md

@@ -5,6 +5,65 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v0.5.3-esp32] — 2026-03-30
+
+### Added
+- **Cross-node RSSI-weighted feature fusion** — Multiple ESP32 nodes fuse CSI features using RSSI-based weighting. Closer node gets higher weight. Reduces variance noise by 29%, keypoint jitter by 72%.
+- **DynamicMinCut person separation** — Uses `ruvector_mincut::DynamicMinCut` on the subcarrier temporal correlation graph to detect independent motion clusters. Replaces variance-based heuristic for multi-person counting.
+- **RSSI-based position tracking** — Skeleton position driven by RSSI differential between nodes. Walk between ESP32s and the skeleton follows you.
+- **Per-node state pipeline (ADR-068)** — Each ESP32 node gets independent `HashMap<u8, NodeState>` with frame history, classification, vitals, and person count. Fixes #249 (the #1 user-reported issue).
+- **RuVector Phase 1-3 integration** — Subcarrier importance weighting, temporal keypoint smoothing (EMA), coherence gating, skeleton kinematic constraints (Jakobsen relaxation), compressed pose history.
+- **Client-side lerp smoothing** — UI keypoints interpolate between frames (alpha=0.15) for fluid skeleton movement.
+- **Multi-node mesh tests** — 8 integration tests covering 1-255 node configurations.
+- **`wifi_densepose` Python package** — `from wifi_densepose import WiFiDensePose` now works (#314).
+
+### Fixed
+- **Watchdog crash on busy LANs (#321)** — Batch-limited edge_dsp to 4 frames before 20ms yield. Fixed idle-path busy-spin (`pdMS_TO_TICKS(5)==0`).
+- **No detection from edge vitals (#323)** — Server now generates `sensing_update` from Tier 2+ vitals packets.
+- **RSSI byte offset mismatch (#332)** — Server parsed RSSI from wrong byte (was reading sequence counter).
+- **Stack overflow risk** — Moved 4KB of BPM scratch buffers from stack to static storage.
+- **Stale node memory leak** — `node_states` HashMap evicts nodes inactive >60s.
+- **Unsafe raw pointer removed** — Replaced with safe `.clone()` for adaptive model borrow.
+- **Firmware CI** — Upgraded to IDF v5.4, replaced `xxd` with `od` (#327).
+- **Person count double-counting** — Multi-node aggregation changed from `sum` to `max`.
+- **Skeleton jitter** — Removed tick-based noise, dampened procedural animation, recalibrated feature scaling for real ESP32 data.
+
+### Changed
+- Motion-responsive skeleton: arm swing (0-80px) driven by CSI variance, leg kick (0-50px) by motion_band_power, vertical bob when walking.
+- Person count thresholds recalibrated for real ESP32 hardware (1→2 at 0.70, EMA alpha 0.04).
+- Vital sign filtering: larger median window (31), faster EMA (0.05), looser HR jump filter (15 BPM).
+- Vendored ruvector updated to v2.1.0-40 (316 commits ahead).
+
+### Benchmarks (2-node mesh, COM6 + COM9, 30s)
+| Metric | Baseline | v0.5.3 | Improvement |
+|--------|----------|--------|-------------|
+| Variance noise | 109.4 | 77.6 | **-29%** |
+| Feature stability | std=154.1 | std=105.4 | **-32%** |
+| Keypoint jitter | std=4.5px | std=1.3px | **-72%** |
+| Confidence | 0.643 | 0.686 | **+7%** |
+| Presence accuracy | 93.4% | 94.6% | **+1.3pp** |
+
+### Verified
+- Real hardware: COM6 (node 1) + COM9 (node 2) on ruv.net WiFi
+- All 284 Rust tests pass, 352 signal crate tests pass
+- Firmware builds clean at 843 KB
+- QEMU CI: 11/11 jobs green
+
+## [v0.5.2-esp32] — 2026-03-28
+
+### Fixed
+- RSSI byte offset in frame parser (#332)
+- Per-node state pipeline for multi-node sensing (#249)
+- Firmware CI upgraded to IDF v5.4 (#327)
+
+## [v0.5.1-esp32] — 2026-03-27
+
+### Fixed
+- Watchdog crash on busy LANs (#321)
+- No detection from edge vitals (#323)
+- `wifi_densepose` Python package import (#314)
+- Pre-compiled firmware binaries added to release
+
 ## [v0.5.0-esp32] — 2026-03-15
 
 ### Added

firmware/esp32-csi-node/release_bins/ota_data_initial.bin

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firmware/esp32-csi-node/sdkconfig.defaults.8mb_backup

@@ -0,0 +1,33 @@
+# ESP32-S3 CSI Node — Default SDK Configuration
+# This file is applied automatically by idf.py when no sdkconfig exists.
+
+# Target: ESP32-S3
+CONFIG_IDF_TARGET="esp32s3"
+
+# Use custom partition table (8MB flash with OTA — ADR-045)
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions_display.csv"
+
+# Flash configuration: 8MB (Quad SPI)
+CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
+CONFIG_ESPTOOLPY_FLASHSIZE="8MB"
+
+# Compiler optimization: optimize for size to reduce binary
+CONFIG_COMPILER_OPTIMIZATION_SIZE=y
+
+# Enable CSI (Channel State Information) in WiFi driver
+CONFIG_ESP_WIFI_CSI_ENABLED=y
+
+# NVS encryption disabled by default (requires eFuse provisioning).
+# Enable only after burning HMAC key to eFuse block.
+# CONFIG_NVS_ENCRYPTION is not set
+
+# Disable unused features to reduce binary size
+CONFIG_BOOTLOADER_LOG_LEVEL_WARN=y
+CONFIG_LOG_DEFAULT_LEVEL_INFO=y
+
+# LWIP: enable extended socket options for UDP multicast
+CONFIG_LWIP_SO_RCVBUF=y
+
+# FreeRTOS: increase task stack for CSI processing
+CONFIG_ESP_MAIN_TASK_STACK_SIZE=8192