feat: saved_views backend API + model + migration + frontend hooks

alembic/versions/0047_saved_views.py

@@ -0,0 +1,39 @@
+"""Create saved_views table
+
+Revision ID: 0047_saved_views
+Revises: 0046_plugin_allowlist
+Create Date: 2026-07-28
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects.postgresql import UUID, JSONB
+
+revision = "0047_saved_views"
+down_revision = "0046_plugin_allowlist"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "saved_views",
+        sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("name", sa.String(100), nullable=False),
+        sa.Column("entity_type", sa.String(50), nullable=False),
+        sa.Column("view_config", JSONB, nullable=False, server_default=sa.text("'{}'::jsonb")),
+        sa.Column("user_id", UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("tenant_id", UUID(as_uuid=True), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+    )
+    op.create_unique_constraint("uq_saved_views_tenant_user_entity_name", "saved_views", ["tenant_id", "user_id", "entity_type", "name"])
+    op.create_index("ix_saved_views_tenant_user", "saved_views", ["tenant_id", "user_id"])
+    op.create_index("ix_saved_views_tenant_entity", "saved_views", ["tenant_id", "entity_type"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_saved_views_tenant_entity", table_name="saved_views")
+    op.drop_index("ix_saved_views_tenant_user", table_name="saved_views")
+    op.drop_unique_constraint("uq_saved_views_tenant_user_entity_name", "saved_views")
+    op.drop_table("saved_views")