feat: move opkssh and warpgate into plugins (C3)

plugins/warpgate/src/backend/index.ts

@@ -0,0 +1,22 @@
+import type { PluginContext } from "@termix/plugin-sdk/backend";
+import { detectWarpgateRound } from "./detect.js";
+import { hostImportNormalizer } from "./host-import.js";
+
+export const HANDLER_ID = "warpgate";
+
+export async function activate(ctx: PluginContext) {
+  ctx.auth.registerKeyboardInteractiveHandler({
+    id: HANDLER_ID,
+    label: "Warpgate",
+    detect: (round) => detectWarpgateRound(round),
+    // Warpgate asks for the password before its browser round; answer it
+    // silently so the only thing the user sees is the sign-in dialog.
+    autoAnswerPasswords: (_host, settings) => settings.useWarpgate === true,
+  });
+
+  ctx.registry.provide("warpgate.hostImportNormalizer", hostImportNormalizer);
+}
+
+export async function deactivate() {
+  // Registered through ctx, so core removes it.
+}