feat(models): increase max_length for source and file_type fields

Increase max_length for source and file_type fields in IngestJob model from 50 to 100.
This prevents data truncation for longer source references or file type strings.

mnemosyne/library/migrations/0002_widen_ingestjob_source_file_type.py

@@ -0,0 +1,21 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("library", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="ingestjob",
+            name="source",
+            field=models.CharField(default="", max_length=100),
+        ),
+        migrations.AlterField(
+            model_name="ingestjob",
+            name="file_type",
+            field=models.CharField(blank=True, max_length=100),
+        ),
+    ]

mnemosyne/library/models.py

@@ -339,13 +339,13 @@ class IngestJob(models.Model):
 
     # Where the file came from. For Daedalus: source="daedalus",
     # source_ref="<workspace_id>/<file_id>".
-    source = models.CharField(max_length=50, default="")
+    source = models.CharField(max_length=100, default="")
     source_ref = models.CharField(max_length=200, blank=True, db_index=True)
     s3_key = models.CharField(max_length=500)
 
     # Optional metadata carried forward to the Item node.
     title = models.CharField(max_length=500, blank=True)
-    file_type = models.CharField(max_length=50, blank=True)
+    file_type = models.CharField(max_length=100, blank=True)
     file_size = models.PositiveBigIntegerField(default=0)
     collection_uid = models.CharField(max_length=64, blank=True)