Fix Dockerfile: remove software-properties-common, add OpenCV dependencies

Dockerfile

@@ -4,16 +4,13 @@ FROM python:3.9-slim
 # Set working directory
 WORKDIR /app
 
-# Install system dependencies
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    curl \
-    software-properties-common \
-    git \
-    && rm -rf /var/lib/apt/lists/*
-
-# Copy requirements first for better caching
-COPY requirements.txt .
+# Copy package list and requirements first for better caching
+COPY packages.txt requirements.txt ./
+
+# Install system dependencies from packages.txt
+RUN apt-get update && \
+    xargs -r -a packages.txt apt-get install -y && \
+    rm -rf /var/lib/apt/lists/*
 
 # Install Python dependencies
 RUN pip install --no-cache-dir -r requirements.txt

packages.txt

@@ -1,3 +1,12 @@
 build-essential
 curl
 git
+libgl1-mesa-glx
+libglib2.0-0
+libgomp1
+libsm6
+libxext6
+libxrender-dev
+libfontconfig1
+libice6
+wget