API Dockerfile: install camera SDK from local tarball under camera_sdk; compose: build API image and set LD_LIBRARY_PATH fallback

docker-compose.yml

@@ -2,15 +2,20 @@ version: "3.9"
 
 services:
   api:
-    image: python:3.11-slim
+    build:
+      context: ./api
+      dockerfile: Dockerfile
     working_dir: /app
     volumes:
       - ./api:/app
       - ./api/storage:/storage
     environment:
       - PYTHONUNBUFFERED=1
+      - LD_LIBRARY_PATH=/usr/local/lib:/app/camera_sdk/lib
     command: >
       sh -lc "
+        apt-get update && apt-get install -y libusb-1.0-0-dev;
+        if [ -d camera_sdk/lib ]; then cp camera_sdk/lib/* /usr/local/lib/ 2>/dev/null || true; fi;
         if [ -f requirements.txt ]; then pip install --no-cache-dir -r requirements.txt; else pip install --no-cache-dir -e .; fi;
         python main.py --config config.compose.json
       "
@@ -47,4 +52,3 @@ services:
 volumes:
   mosquitto-data:
   mosquitto-conf:
-