Initial curated RAGcore source from c16667f0c9397e2bfc8dd0255b114fba23c8d05e

alembic/versions/0015_application_default_spaces.py

@@ -0,0 +1,45 @@
+"""Persist Application.default_knowledge_space_ids, previously accepted by the
+control-plane API and echoed back in the same create/read response but
+silently discarded on every subsequent round-trip -- the `applications`
+table had no column or table for it at all.
+
+A join table (mirroring `grants`'s own application<->space composite-FK
+shape) rather than a JSON array column: this is a real many-to-many
+relationship the domain already models as a `frozenset[UUID]`, and every
+other application<->space relationship in this schema (`grants`) already
+uses a join table, not a JSON column.
+"""
+
+from __future__ import annotations
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "0015_application_default_spaces"
+down_revision = "0014_document_space"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "application_default_spaces",
+        sa.Column("application_id", sa.Uuid(), primary_key=True),
+        sa.Column("workspace_id", sa.Uuid(), nullable=False),
+        sa.Column("knowledge_space_id", sa.Uuid(), primary_key=True),
+        sa.ForeignKeyConstraint(
+            ["application_id", "workspace_id"],
+            ["control.applications.id", "control.applications.workspace_id"],
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["knowledge_space_id", "workspace_id"],
+            ["control.spaces.id", "control.spaces.workspace_id"],
+            ondelete="CASCADE",
+        ),
+        schema="control",
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("application_default_spaces", schema="control")