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- Removed outdated Dockerfiles for services (API Gateway, Service Adapters, API Docs, and Frontend) to eliminate redundancy.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.

services/api-gateway/Dockerfile

@@ -1,17 +0,0 @@
-FROM openjdk:17-jdk-slim
-
-WORKDIR /app
-
-# Copy Maven files
-COPY pom.xml .
-COPY src ./src
-
-# Install Maven
-RUN apt-get update && apt-get install -y maven && rm -rf /var/lib/apt/lists/*
-
-# Build the application
-RUN mvn clean package -DskipTests
-
-# Run the application
-EXPOSE 8080
-CMD ["java", "-jar", "target/api-gateway-1.0.0.jar"]

services/api-gateway/Dockerfile.dev

@@ -1,21 +0,0 @@
-FROM openjdk:17-jdk-slim
-
-WORKDIR /app
-
-# Install Maven
-RUN apt-get update && apt-get install -y maven && rm -rf /var/lib/apt/lists/*
-
-# Copy Maven files
-COPY pom.xml .
-
-# Download dependencies
-RUN mvn dependency:go-offline -B
-
-# Copy source code
-COPY src ./src
-
-# Expose port
-EXPOSE 8080
-
-# Run in development mode with hot reload
-CMD ["mvn", "spring-boot:run", "-Dspring-boot.run.jvmArguments='-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005'"]