Update Dockerfile

Dockerfile

@@ -1,6 +1,7 @@
 FROM python:3.10.16-slim
 
-RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*
+# Install system dependencies: git (already there) and ffmpeg (new)
+RUN apt-get update && apt-get install -y git ffmpeg && rm -rf /var/lib/apt/lists/*
 
 RUN python --version
 
@@ -11,7 +12,7 @@ COPY requirements.txt .
 RUN pip install --no-cache-dir --upgrade pip && \
     pip install --no-cache-dir -r requirements.txt
 
-# Copy all Space files (including engine.py, event.py, policy_engine.py)
+# Copy all Space files
 COPY . .
 
 # --- Patch 1: Add missing constants ---