Refactor Dockerfile to simplify dependency installation by removing package-lock.json handling

Dockerfile

@@ -6,8 +6,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install dependencies with proper optional dependency handling for Alpine/musl
-RUN rm -f package-lock.json && \
-    npm install --include=optional
+RUN npm install --include=optional
 
 # Copy source code
 COPY . .