feat: add example environment configuration and simplify main script

.env.example

@@ -0,0 +1,4 @@
+# Application Settings
+APP_NAME=template-python
+DEBUG=true
+ENV=development

main.py

@@ -1,23 +1 @@
-import http.server
-import socketserver
-import os
-from dotenv import load_dotenv
-
-# Load environment variables from .env file
-load_dotenv()
-
-# Get PORT from environment variable or use default 8000
-PORT = int(os.getenv("PORT", 8000))
-
-
-class MyHandler(http.server.BaseHTTPRequestHandler):
-    def do_GET(self):
-        self.send_response(200)
-        self.send_header("Content-type", "text/plain")
-        self.end_headers()
-        self.wfile.write(b"Hello, World!")
-
-
-with socketserver.TCPServer(("", PORT), MyHandler) as httpd:
-    print(f"Serving at port {PORT}")
-    httpd.serve_forever()
+print("Hello, World!")