Ensure ne_collection_job.trigger_mode exists on existing DBs.

Missing column broke ops task overview and collection queries when Alembic skipped legacy DDL; add always-on safety net plus migration.

Co-authored-by: Cursor <cursoragent@cursor.com>

alembic/versions/20260812_ne_collect_trigger.py

@@ -0,0 +1,36 @@
+"""Add ne_collection_job.trigger_mode for scheduled batch collect.
+
+Revision ID: 20260812_ne_collect_trigger
+Revises: 20260811_fabric_level
+Create Date: 2026-08-12
+"""
+
+from __future__ import annotations
+
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "20260812_ne_collect_trigger"
+down_revision: Union[str, Sequence[str], None] = "20260811_fabric_level"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    from netx_api.schema_patches import apply_collection_schema_safety_net
+
+    apply_collection_schema_safety_net(op.get_bind())
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    dialect = str(getattr(bind.dialect, "name", "") or "").lower()
+    if dialect.startswith("postgres"):
+        op.execute("DROP INDEX IF EXISTS ix_ne_collection_job_trigger_mode")
+        op.execute("ALTER TABLE ne_collection_job DROP COLUMN IF EXISTS trigger_mode")
+    else:
+        try:
+            op.drop_column("ne_collection_job", "trigger_mode")
+        except Exception:
+            pass