feat: add file_size_bigint column to LocalFile mirrors

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: rtibblesbot

contentcuration/kolibri_content/base_models.py

@@ -152,6 +152,7 @@ class LocalFile(models.Model):
     )
     available = models.BooleanField(default=False)
     file_size = models.IntegerField(blank=True, null=True)
+    file_size_bigint = models.BigIntegerField(blank=True, null=True)
 
     class Meta:
         abstract = True

contentcuration/kolibri_content/migrations/0025_localfile_file_size_bigint.py

@@ -0,0 +1,17 @@
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("content", "0024_file_included_presets"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="localfile",
+            name="file_size_bigint",
+            field=models.BigIntegerField(blank=True, null=True),
+        ),
+    ]

contentcuration/kolibri_public/migrations/0010_localfile_file_size_bigint.py

@@ -0,0 +1,17 @@
+from django.db import migrations
+from django.db import models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("kolibri_public", "0009_file_included_presets"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="localfile",
+            name="file_size_bigint",
+            field=models.BigIntegerField(blank=True, null=True),
+        ),
+    ]