chore: Remove legacy Docker configuration and documentation

### Summary of Changes
- Deleted `docker-compose.dev.yml` and `docker-compose.yml` files to streamline the project structure.
- Removed outdated Dockerfiles for services (API Gateway, Service Adapters, API Docs, and Frontend) to eliminate redundancy.
- Updated `env.example` to reflect changes in service configurations, including local host settings for PostgreSQL and Redis.
- Revised `README.md` to remove references to Docker deployment and clarify local development setup instructions.
- Cleaned up documentation structure by removing obsolete files related to Docker rate limits and compatibility fixes.

### Expected Results
- Simplified project setup and improved clarity for developers by focusing on current configurations and removing legacy artifacts.

frontend/Dockerfile

@@ -1,24 +0,0 @@
-FROM node:18-alpine
-
-WORKDIR /app
-
-# Copy package files
-COPY package*.json ./
-
-# Install dependencies
-RUN npm install
-
-# Copy source code
-COPY . .
-
-# Build the application
-RUN npm run build
-
-# Install serve to run the app
-RUN npm install -g serve
-
-# Expose port
-EXPOSE 3000
-
-# Start the application
-CMD ["serve", "-s", "build", "-l", "3000"]

frontend/Dockerfile.dev

@@ -1,18 +0,0 @@
-FROM node:18-alpine
-
-WORKDIR /app
-
-# Copy package files
-COPY package*.json ./
-
-# Install dependencies
-RUN npm install
-
-# Copy source code
-COPY . .
-
-# Expose port
-EXPOSE 3000
-
-# Run in development mode with hot reload
-CMD ["npm", "start"]