Update deployment scripts, add leaderboard feature, and bump version to 2.0.0

Dockerfile

@@ -1,6 +1,18 @@
-FROM python:3.13.2
-COPY . /app
+FROM python:3.13.2-slim
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    ffmpeg \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
 WORKDIR /app
-RUN pip install -r requirements.txt
-ENV PYTHONUNBUFFERED 1
-CMD ["gunicorn", "app:app", "--access-logfile", "-", "--bind", "0.0.0.0"]
+COPY requirements.txt /app/
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . /app
+
+ENV PYTHONUNBUFFERED=1
+EXPOSE 80
+
+CMD ["gunicorn", "app:app", "--access-logfile", "-", "--bind", "0.0.0.0:80"]