Package site poster scripts in Docker image

Dockerfile

@@ -6,6 +6,7 @@ WORKDIR /app
 RUN apt-get update && apt-get install -y \
     postgresql-client \
     curl \
+    ffmpeg \
     git \
     && rm -rf /var/lib/apt/lists/*
 
@@ -15,6 +16,7 @@ RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy source code
 COPY src/ src/
+COPY scripts/ scripts/
 
 COPY favi.png .
 COPY .env.example .env