Increase the title character limit to 500 for conversations

Author: sabaimran

src/khoj/database/migrations/0074_alter_conversation_title.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.0.9 on 2024-11-12 09:50
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("database", "0073_delete_usersearchmodelconfig"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="conversation",
+            name="title",
+            field=models.CharField(blank=True, default=None, max_length=500, null=True),
+        ),
+    ]

src/khoj/database/models/__init__.py

@@ -463,7 +463,7 @@ class Conversation(BaseModel):
     slug = models.CharField(max_length=200, default=None, null=True, blank=True)
 
     # The title field is explicitly set by the user.
-    title = models.CharField(max_length=200, default=None, null=True, blank=True)
+    title = models.CharField(max_length=500, default=None, null=True, blank=True)
     agent = models.ForeignKey(Agent, on_delete=models.SET_NULL, default=None, null=True, blank=True)
     file_filters = models.JSONField(default=list)
     id = models.UUIDField(default=uuid.uuid4, editable=False, unique=True, primary_key=True, db_index=True)