✨(models/api) add document model and API

We do this by making copies of existing Template and TemplateAccess
models and API. A little refactoring is done to try to limit duplicate
code.

src/backend/core/api/serializers.py

@@ -136,7 +136,7 @@ class DocumentSerializer(BaseResourceSerializer):
 
     class Meta:
         model = models.Document
-        fields = ["id", "title", "accesses", "abilities", "is_public"]
+        fields = ["id", "content", "title", "accesses", "abilities", "is_public"]
         read_only_fields = ["id", "accesses", "abilities"]
 
 

src/backend/core/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 5.0.3 on 2024-05-02 12:12
+# Generated by Django 5.0.3 on 2024-04-19 11:38
 
 import django.contrib.auth.models
 import django.core.validators