Amnezia-style SSH server connect with verify, ping and server_info

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

alembic/versions/0003_ssh_status.py

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+"""SSH status fields for vpn_servers
+
+Revision ID: 0003_ssh_status
+Revises: 0002_ssh_fields
+Create Date: 2026-07-25
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0003_ssh_status"
+down_revision: Union[str, None] = "0002_ssh_fields"
+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("ssh_server_info", sa.Text(), nullable=True))
+    op.add_column(
+        "vpn_servers",
+        sa.Column("ssh_reachable", sa.Boolean(), nullable=False, server_default=sa.text("false")),
+    )
+    op.add_column("vpn_servers", sa.Column("ssh_last_checked", sa.DateTime(timezone=True), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("vpn_servers", "ssh_last_checked")
+    op.drop_column("vpn_servers", "ssh_reachable")
+    op.drop_column("vpn_servers", "ssh_server_info")