[Feature] Preprocessing and dev QoL changes (#1)

Reviewed-on: #1
Co-authored-by: bivashy <botyrbojey@gmail.com>
Co-committed-by: bivashy <botyrbojey@gmail.com>

Dockerfile.prod

@@ -33,8 +33,9 @@ RUN groupadd --gid 1000 spring-app \
     && useradd --uid 1000 --gid spring-app --shell /bin/bash --create-home spring-app
 
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends ca-certificates && \
-    rm -rf /var/lib/apt/lists/*
+    apt-get install -y --no-install-recommends \
+    ca-certificates \
+    ffmpeg
 
 USER spring-app:spring-app
 WORKDIR /opt/workspace