Fix Django module import issues and configuration

- Add root manage.py and settings.py for proper Django setup
- Fix module path issues with backend.core app
- Resolve 'No module named backend.core' error in collectstatic
- Simplify Django project structure for Hugging Face Spaces deployment

backend/manage.py

@@ -4,6 +4,7 @@ import sys
 
 if __name__ == '__main__':
     os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'backend.settings')
+    sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:

manage.py

@@ -0,0 +1,11 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == '__main__':
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError("Couldn't import Django") from exc
+    execute_from_command_line(sys.argv)

settings.py

@@ -0,0 +1,82 @@
+import os
+from pathlib import Path
+
+BASE_DIR = Path(__file__).resolve().parent
+
+SECRET_KEY = 'django-insecure-change-me-in-production'
+
+DEBUG = True
+
+ALLOWED_HOSTS = ['*']
+
+INSTALLED_APPS = [
+    'django.contrib.contenttypes',
+    'django.contrib.auth',
+    'rest_framework',
+    'whitenoise.runserver_nostatic',
+    'backend.core',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'whitenoise.middleware.WhiteNoiseMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'backend.backend.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [BASE_DIR / 'backend' / 'templates'],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'backend.wsgi.application'
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': BASE_DIR / 'db.sqlite3',
+    }
+}
+
+AUTH_PASSWORD_VALIDATORS = [
+    {'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator'},
+    {'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator'},
+    {'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator'},
+    {'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator'},
+]
+
+LANGUAGE_CODE = 'en-us'
+TIME_ZONE = 'UTC'
+USE_I18N = True
+USE_TZ = True
+
+STATIC_URL = '/static/'
+STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
+STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+REST_FRAMEWORK = {
+    'DEFAULT_PARSER_CLASSES': [
+        'rest_framework.parsers.JSONParser',
+    ],
+    'DEFAULT_RENDERER_CLASSES': [
+        'rest_framework.renderers.JSONRenderer',
+    ],
+}
+
+CORS_ALLOW_ALL_ORIGINS = True