Optimize build: remove embedded repositories from source and clone during Docker build

Dockerfile

@@ -12,8 +12,8 @@ RUN mkdir -p /app/code /app/data
 
 WORKDIR /app/code
 
-# Clone the ente repository
-RUN git clone https://github.com/ente-io/ente.git . && \
+# Clone the ente repository during build (not from local source)
+RUN git clone --depth=1 https://github.com/ente-io/ente.git . && \
     cd server && \
     mkdir -p /app/data/config