merge packages.txt content into dockerfile then make it also use reuirements.txt

Dockerfile

@@ -18,6 +18,10 @@ RUN apt-get update \
       pkg-config \
       cmake \
       build-essential \
+      python3-opencv \
+      build-essential \
+      cmake \
+      libopenblas-dev \
       libopenblas-dev \
  && ln -sf /usr/share/zoneinfo/$TZ /etc/localtime \
  && echo $TZ > /etc/timezone \
@@ -35,8 +39,8 @@ RUN git clone --depth 1 --recurse-submodules \
  && rm -rf /tmp/llama-cpp-python
 
 # 7. (Optional) Your other Python deps
-# COPY requirements.txt .
-# RUN pip install --no-cache-dir -r requirements.txt
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
 
 # 8. Copy app code
 COPY . .