Update Dockerfile to install all dependencies and modify .dockerignore to exclude log files.

Dockerfile

@@ -6,8 +6,8 @@ WORKDIR /app
 # Copy package files
 COPY package*.json ./
 
-# Install dependencies
-RUN npm ci --only=production
+# Install ALL dependencies (including dev dependencies needed for build)
+RUN npm ci
 
 # Copy source code
 COPY . .