feat: enhance Docker configuration and update environment variables

- Updated .dockerignore to include additional files and directories for better Docker build context management.
- Modified compose.yaml to add BASE_URL and change BUCKET_NAME to improve environment configuration.
- Refactored Dockerfile to implement a multi-stage build for optimized image size and performance.
- Updated package.json to include a new script for production Prisma generation.
- Adjusted tsconfig files to refine project structure and exclude unnecessary directories.
- Removed delta.mdx.txt file from OpenAI instructions to streamline the service.
- Updated package-lock.json and package.json to upgrade Prisma and related dependencies for improved functionality.

Dockerfile

@@ -1,23 +1,49 @@
-FROM node:22.6.0-alpine AS node_base
-
-# Set the working directory
+# Use multi-stage build for optimization
+FROM node:22.6.0-alpine AS dependencies
 WORKDIR /app
 
-# Enable legacy peer deps
-RUN npm config set legacy-peer-deps true
+# Copy only package files first to leverage Docker cache
+COPY package*.json ./
+COPY epess-database/prisma ./prisma
 
-COPY . .
+# Enable legacy peer deps and install dependencies in one layer
+RUN npm config set legacy-peer-deps true && \
+    npm ci --only=production && \
+    npm install --save-dev typescript @types/node @swc/core @swc/cli && \
+    npx prisma generate
 
-# Install the dependencies
-RUN npm install
+# Second stage for build
+FROM node:22.6.0-alpine AS builder
+WORKDIR /app
 
+# Set legacy peer deps and copy only necessary files
+COPY --from=dependencies /app/node_modules ./node_modules
+COPY --from=dependencies /app/prisma ./prisma
+COPY package*.json tsconfig*.json ./
+COPY nest-cli.json ./
+COPY src ./src
 
-# Generate the Prisma client
-RUN npm run prisma:generate
+# Generate Prisma client and build
+RUN npm config set legacy-peer-deps true && \
+    npm run build
+
+# Final stage
+FROM node:22.6.0-alpine AS runner
+WORKDIR /app
+
+# Copy only necessary files with minimal layers
+COPY --from=dependencies /app/node_modules ./node_modules
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/prisma ./prisma
+COPY --from=builder /app/package*.json ./
 
 # Expose the port
 EXPOSE 3000
 
-# Start the application
+# Use non-root user for security
+USER node
 
-CMD ["npm", "run", "start:dev"]
+# Pause to allow manual inspection (for debugging)
+# CMD ["sh", "-c", "echo 'Paused. Press Ctrl+C to continue...'; sleep infinity"]
+
+CMD ["npm", "run", "start:prod"]