Reworked variable system, no longer hardcoded

backend/app/settings.py

@@ -0,0 +1,37 @@
+from pydantic_settings import BaseSettings, SettingsConfigDict
+from typing import List
+
+
+class Settings(BaseSettings):
+    """Application settings loaded from environment variables"""
+
+    # Database Configuration
+    database_url: str = "sqlite:///./tesseract.db"
+
+    # API Configuration
+    api_title: str = "Tesseract - Nested Todo Tree API"
+    api_description: str = "API for managing deeply nested todo trees"
+    api_version: str = "1.0.0"
+
+    # CORS Configuration
+    cors_origins: str = "http://localhost:5173,http://localhost:3000"
+
+    # Server Configuration
+    host: str = "0.0.0.0"
+    port: int = 8000
+
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        env_file_encoding="utf-8",
+        case_sensitive=False,
+        extra="ignore"
+    )
+
+    @property
+    def cors_origins_list(self) -> List[str]:
+        """Parse comma-separated CORS origins into a list"""
+        return [origin.strip() for origin in self.cors_origins.split(",")]
+
+
+# Global settings instance
+settings = Settings()