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- Removed outdated Dockerfiles for services (API Gateway, Service Adapters, API Docs, and Frontend) to eliminate redundancy.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

env.example

@@ -1,15 +1,12 @@
-# Docker Registry Configuration
-DOCKER_REGISTRY=gittea.kammenstraatha.duckdns.org/admin
-DOCKER_USERNAME=admin
-IMAGE_TAG=main
-
 # Database Configuration
 POSTGRES_DB=labfusion
 POSTGRES_USER=labfusion
 POSTGRES_PASSWORD=labfusion_password
+POSTGRES_HOST=localhost
+POSTGRES_PORT=5432
 
 # Redis Configuration
-REDIS_HOST=redis
+REDIS_HOST=localhost
 REDIS_PORT=6379
 
 # API Gateway Configuration