feat: 导入 MemRelay 初始源码

backend/migrations/versions/20260802_0003_vault_api_key.py

@@ -0,0 +1,30 @@
+"""Add API-key authentication fields to vault connections."""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "20260802_0003"
+down_revision: str | Sequence[str] | None = "20260802_0002"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    with op.batch_alter_table("vault_connections") as batch:
+        batch.add_column(
+            sa.Column(
+                "login_method",
+                sa.String(16),
+                nullable=False,
+                server_default="password",
+            )
+        )
+        batch.add_column(sa.Column("encrypted_client_secret", sa.Text(), nullable=True))
+
+
+def downgrade() -> None:
+    with op.batch_alter_table("vault_connections") as batch:
+        batch.drop_column("encrypted_client_secret")
+        batch.drop_column("login_method")