fix: Add missing Django core apps and DigitalOcean Spaces support

- Add django.contrib.auth, contenttypes, sessions, sites, messages,
  staticfiles, and admin to INSTALLED_APPS
- Add DigitalOcean Spaces (S3-compatible) storage configuration
- Add AWS_S3_ENDPOINT_URL setting for custom S3 endpoints

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

smoothschedule/config/settings/base.py

@@ -61,6 +61,13 @@ WSGI_APPLICATION = "config.wsgi.application"
 # APPS
 # ------------------------------------------------------------------------------
 DJANGO_APPS = [
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.sites",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "django.contrib.admin",
     "django.forms",
 ]
 THIRD_PARTY_APPS = [

smoothschedule/config/settings/production.py

@@ -68,22 +68,35 @@ SECURE_CONTENT_TYPE_NOSNIFF = env.bool(
 
 # STATIC & MEDIA
 # ------------------------
-# AWS S3 storage is optional - only configure if credentials are provided
+# S3-compatible storage (AWS S3 or DigitalOcean Spaces)
 AWS_ACCESS_KEY_ID = env("DJANGO_AWS_ACCESS_KEY_ID", default="")
 AWS_SECRET_ACCESS_KEY = env("DJANGO_AWS_SECRET_ACCESS_KEY", default="")
 AWS_STORAGE_BUCKET_NAME = env("DJANGO_AWS_STORAGE_BUCKET_NAME", default="")
+# For DigitalOcean Spaces, use endpoint like: https://nyc3.digitaloceanspaces.com
+AWS_S3_ENDPOINT_URL = env("DJANGO_AWS_S3_ENDPOINT_URL", default="")
+AWS_S3_REGION_NAME = env("DJANGO_AWS_S3_REGION_NAME", default=None)
+AWS_S3_CUSTOM_DOMAIN = env("DJANGO_AWS_S3_CUSTOM_DOMAIN", default=None)
 
 if AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY and AWS_STORAGE_BUCKET_NAME:
-    # Use S3 for media storage
+    # Use S3/Spaces for media storage
     AWS_QUERYSTRING_AUTH = False
     _AWS_EXPIRY = 60 * 60 * 24 * 7
     AWS_S3_OBJECT_PARAMETERS = {
         "CacheControl": f"max-age={_AWS_EXPIRY}, s-maxage={_AWS_EXPIRY}, must-revalidate",
     }
     AWS_S3_MAX_MEMORY_SIZE = env.int("DJANGO_AWS_S3_MAX_MEMORY_SIZE", default=100_000_000)
-    AWS_S3_REGION_NAME = env("DJANGO_AWS_S3_REGION_NAME", default=None)
-    AWS_S3_CUSTOM_DOMAIN = env("DJANGO_AWS_S3_CUSTOM_DOMAIN", default=None)
-    aws_s3_domain = AWS_S3_CUSTOM_DOMAIN or f"{AWS_STORAGE_BUCKET_NAME}.s3.amazonaws.com"
+
+    # Determine the domain for URLs
+    if AWS_S3_CUSTOM_DOMAIN:
+        aws_s3_domain = AWS_S3_CUSTOM_DOMAIN
+    elif AWS_S3_ENDPOINT_URL:
+        # DigitalOcean Spaces: bucket.region.digitaloceanspaces.com
+        from urllib.parse import urlparse
+        endpoint_parts = urlparse(AWS_S3_ENDPOINT_URL)
+        region = endpoint_parts.netloc.split('.')[0]  # e.g., 'nyc3' from nyc3.digitaloceanspaces.com
+        aws_s3_domain = f"{AWS_STORAGE_BUCKET_NAME}.{region}.digitaloceanspaces.com"
+    else:
+        aws_s3_domain = f"{AWS_STORAGE_BUCKET_NAME}.s3.amazonaws.com"
 
     STORAGES = {
         "default": {
@@ -94,10 +107,14 @@ if AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY and AWS_STORAGE_BUCKET_NAME:
             },
         },
         "staticfiles": {
-            "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
+            "BACKEND": "storages.backends.s3.S3Storage",
+            "OPTIONS": {
+                "location": "static",
+            },
         },
     }
     MEDIA_URL = f"https://{aws_s3_domain}/media/"
+    STATIC_URL = f"https://{aws_s3_domain}/static/"
 else:
     # Use local filesystem storage
     STORAGES = {