Generate and deploy real WG/AWG configs to VPS over SSH

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

alembic/versions/0004_real_vpn.py

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+"""Add AWG S3/S4, MTU and vpn_installed
+
+Revision ID: 0004_real_vpn
+Revises: 0003_ssh_status
+Create Date: 2026-07-25
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0004_real_vpn"
+down_revision: Union[str, None] = "0003_ssh_status"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column("vpn_servers", sa.Column("s3", sa.Integer(), nullable=True))
+    op.add_column("vpn_servers", sa.Column("s4", sa.Integer(), nullable=True))
+    op.add_column(
+        "vpn_servers",
+        sa.Column("mtu", sa.Integer(), nullable=False, server_default="1420"),
+    )
+    op.add_column(
+        "vpn_servers",
+        sa.Column("vpn_installed", sa.Boolean(), nullable=False, server_default=sa.text("false")),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("vpn_servers", "vpn_installed")
+    op.drop_column("vpn_servers", "mtu")
+    op.drop_column("vpn_servers", "s4")
+    op.drop_column("vpn_servers", "s3")