feat: add daily + global notes

tracker/admin.py

@@ -1,7 +1,9 @@
 from django.contrib import admin
 
 from tracker.models import (
+    DailyNote,
     DoseLog,
+    GlobalNote,
     Medication,
     PulseReading,
     ReminderSent,
@@ -66,3 +68,29 @@ class DoseLogAdmin(admin.ModelAdmin):
 class PulseReadingAdmin(admin.ModelAdmin):
     list_display = ["date", "bpm", "notes"]
     date_hierarchy = "date"
+
+
+@admin.register(DailyNote)
+class DailyNoteAdmin(admin.ModelAdmin):
+    """The journal. Day-to-day writing happens on the Today page."""
+
+    list_display = ["date", "preview", "updated_at"]
+    date_hierarchy = "date"
+    search_fields = ["body"]
+
+    @admin.display(description="Note")
+    def preview(self, obj: DailyNote) -> str:
+        return obj.body[:80]
+
+
+@admin.register(GlobalNote)
+class GlobalNoteAdmin(admin.ModelAdmin):
+    """The one shared note. It can be edited here, but never added or deleted."""
+
+    list_display = ["__str__", "updated_at"]
+
+    def has_add_permission(self, request):
+        return False
+
+    def has_delete_permission(self, request, obj=None):
+        return False