Add admin port support with other major refactorations

README.md

@@ -8,7 +8,7 @@ A high-performance, Object-Oriented Python client for OpenTTD servers, specifica
 - **Stream Encryption:** Automatic XChaCha20-Poly1305 authenticated encryption for all game traffic.
 - **Modular Design:** Separates low-level binary protocol handling from high-level game logic.
 - **State Management:** Handles the full join sequence including Map download and synchronization.
-- **100% Test Coverage:** Robustly tested with unit, logic, and E2E tests.
+- **Comprehensive Testing:** Robustly tested with unit, logic, and E2E tests (including 100% coverage for unit/logic tests).
 
 ## 🛠 Setup
 
@@ -63,10 +63,11 @@ await client.joined.wait()
 - `tests/`: Comprehensive test suite (Logic, Protocol, E2E).
 
 ## 🧪 Testing
-We maintain 100% test coverage. To run tests:
+We maintain high test coverage. To run normal (non-E2E) tests:
 ```bash
-PYTHONPATH=lib pytest --cov=openttd tests/
+pytest -m "not e2e"
 ```
+For detailed instructions on E2E testing and coverage reports, see the [Testing Guide](file:///home/kovagoadi/openttd-client/docs/TESTING.md).
 
 ## 📜 Documentation
 - [Architecture & Design](docs/ARCHITECTURE.md)