ai insight rework #1

backend/apps/operations/migrations/0020_drop_orphan_structured_data.py

@@ -0,0 +1,30 @@
+"""Drop orphan schema left by deleted migration 0019_aiinsight_structured_data_and_task.
+
+0019 was applied to production Postgres (added ai_insight.structured_data NOT NULL +
+ai_insight_task table) but its file and the corresponding model fields were after-
+wards removed from the codebase. Django builds schema state from migration files,
+so INSERTs omit `structured_data` -> every AIInsight save fails with
+"null value in column structured_data violates not-null constraint".
+
+Postgres-only: SQLite dev databases never had 0019 applied. Reverse is a no-op.
+"""
+from django.db import migrations
+
+
+def drop_orphan_schema(apps, schema_editor):
+    if schema_editor.connection.vendor != "postgresql":
+        return
+    with schema_editor.connection.cursor() as cursor:
+        cursor.execute("ALTER TABLE ai_insight DROP COLUMN IF EXISTS structured_data")
+        cursor.execute("DROP TABLE IF EXISTS ai_insight_task")
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("operations", "0018_remove_aiinsight_source"),
+    ]
+
+    operations = [
+        migrations.RunPython(drop_orphan_schema, migrations.RunPython.noop),
+    ]