fix: Add missing nasa_api_timeout field to Settings

backend/app/config.py

@@ -16,7 +16,7 @@ class Settings(BaseSettings):
     )
 
     # Application
-    app_name: str = "Cosmo - Deep Space Explorer"
+    app_name: str = "COSMO - Deep Space Explorer"
     api_prefix: str = "/api"
 
     # CORS settings - stored as string in env, converted to list
@@ -67,6 +67,7 @@ class Settings(BaseSettings):
     # Proxy settings (for accessing NASA JPL Horizons API in China)
     http_proxy: str = ""
     https_proxy: str = ""
+    nasa_api_timeout: int = 30
 
     @property
     def proxy_dict(self) -> dict[str, str] | None: