feat: Restructure to standard Python package layout

- Move source code to pyhetznerserver/ package directory
- Move tests to separate tests/ directory
- Update imports and package configuration
- Fix __init__.py with proper exports
- Update pyproject.toml for new structure
- Update Makefile commands for new layout
- Ensure all 24 tests pass with new structure

This restructuring follows Python packaging best practices and
makes the package ready for professional PyPI distribution.

Author: DeepPythonist

Makefile

@@ -95,10 +95,10 @@ dev-setup: install-dev install-hooks ## setup development environment
 	@echo "Development environment setup complete!"
 
 run-example: ## run the example usage script
-	python example_usage.py
+	python -m pyhetznerserver.example_usage
 
 test-dry-run: ## run tests in dry-run mode
-	python test_basic.py
+	python -m pytest tests/test_basic.py -v
 
 check-all: lint type-check security test ## run all checks
 

__init__.py

@@ -0,0 +1,71 @@
+"""
+PyHetznerServer - A modern, type-safe Python library for Hetzner Cloud Server management.
+
+This library provides a comprehensive interface to manage Hetzner Cloud servers,
+including creation, deletion, power management, backups, and more.
+
+Example:
+    >>> from pyhetznerserver import HetznerClient
+    >>> client = HetznerClient(token="your_api_token")
+    >>> servers = client.servers.list()
+    >>> print(f"Found {len(servers)} servers")
+"""
+
+from .client import HetznerClient
+from .exceptions import (
+    HetznerAPIError,
+    AuthenticationError,
+    ValidationError,
+    ServerNotFoundError,
+    RateLimitError,
+    ConflictError,
+    ResourceLimitError,
+    ActionFailedError
+)
+from .models.server import Server
+from .models.nested import (
+    ServerType,
+    Datacenter,
+    Location,
+    Image,
+    ISO,
+    Protection,
+    PublicNet,
+    PrivateNet,
+    IPv4,
+    IPv6
+)
+
+__version__ = "1.0.0"
+__author__ = "Mohammad Rasol Esfandiari"
+__email__ = "[email protected]"
+__license__ = "MIT"
+__url__ = "https://github.com/DeepPythonist/PyHetznerServer"
+
+__all__ = [
+    # Main client
+    "HetznerClient",
+    
+    # Exceptions
+    "HetznerAPIError",
+    "AuthenticationError", 
+    "ValidationError",
+    "ServerNotFoundError",
+    "RateLimitError",
+    "ConflictError",
+    "ResourceLimitError",
+    "ActionFailedError",
+    
+    # Models
+    "Server",
+    "ServerType",
+    "Datacenter",
+    "Location",
+    "Image", 
+    "ISO",
+    "Protection",
+    "PublicNet",
+    "PrivateNet",
+    "IPv4",
+    "IPv6",
+] 

pyhetznerserver/__init__.py

@@ -1,8 +1,8 @@
 try:
     from pyhetznerserver import HetznerClient, ServerNotFoundError, ValidationError
 except ImportError:
-    from __init__ import HetznerClient
-    from exceptions import ServerNotFoundError, ValidationError
+    from .client import HetznerClient
+    from .exceptions import ServerNotFoundError, ValidationError
 
 def main():
     client = HetznerClient(token="your_api_token_here", dry_run=True)