feat: Docker images, RVF export, and README update

- Add docker/ folder with Dockerfile.rust (132MB), Dockerfile.python (569MB),
  and docker-compose.yml
- Remove stale root-level Dockerfile and docker-compose files
- Implement --export-rvf CLI flag for standalone RVF package generation
- Generate wifi-densepose-v1.rvf (13KB) with model weights, vital config,
  SONA profile, and training provenance
- Update README with Docker pull/run commands and RVF export instructions
- Update test count to 542+ and fix Docker port mappings
- Reply to issues #43, #44, #45 with Docker/RVF availability

Co-Authored-By: claude-flow <ruv@ruv.net>

docker/docker-compose.yml

@@ -0,0 +1,26 @@
+version: "3.9"
+
+services:
+  sensing-server:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.rust
+    image: ruvnet/wifi-densepose:latest
+    ports:
+      - "3000:3000"   # REST API
+      - "3001:3001"   # WebSocket
+      - "5005:5005/udp"  # ESP32 UDP
+    environment:
+      - RUST_LOG=info
+    command: ["--source", "simulated", "--tick-ms", "100", "--ui-path", "/app/ui"]
+
+  python-sensing:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.python
+    image: ruvnet/wifi-densepose:python
+    ports:
+      - "8765:8765"   # WebSocket
+      - "8080:8080"   # UI
+    environment:
+      - PYTHONUNBUFFERED=1