fix: gate runtime startup behind gateway_start; migrate to current plugin SDK

Lifecycle:
- Move runtime.start() and shutdown handlers out of register() into
  api.on("gateway_start", ...) and api.on("gateway_stop", ...). register()
  runs in every CLI subprocess that loads plugins (e.g. `openclaw completion`,
  `openclaw doctor`); without this gate the runtime would open a network
  connection / bind a listener every time those one-shot commands ran.
- Drop process.once("SIGTERM"/"SIGINT") in favour of the gateway_stop hook,
  which is the documented way for plugins to react to shutdown.
- Stop relying on the non-standard `api.rootDir` field (not present on the
  current OpenClawPluginApi); compute the per-plugin data directory as
  ~/.openclaw/yonexus-server and ensure it exists before use.

Plugin SDK convention update:
- Wrap default export with definePluginEntry({ id, name, description, register })
  per the current openclaw plugin authoring contract.
- Re-type the register function to accept OpenClawPluginApi instead of the
  hand-crafted { rootDir, pluginConfig, ... } shape.
- Use focused subpath imports openclaw/plugin-sdk/plugin-entry and
  openclaw/plugin-sdk/core.
- Add openclaw as a devDependency (file:/usr/lib/node_modules/openclaw) so
  tsc resolves the SDK type subpaths at build time.
- Modernize openclaw.plugin.json: drop version/entry/permissions, add
  activation.onStartup so gateway_start fires for this plugin at boot.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -32,6 +32,7 @@
   "devDependencies": {
     "@types/node": "^25.5.2",
     "typescript": "^5.6.3",
-    "vitest": "^4.1.3"
+    "vitest": "^4.1.3",
+    "openclaw": "file:/usr/lib/node_modules/openclaw"
   }
 }

plugin/index.ts

@@ -32,6 +32,9 @@ export {
 
 import path from "node:path";
 import fs from "node:fs";
+import os from "node:os";
+import { definePluginEntry } from "openclaw/plugin-sdk/plugin-entry";
+import type { OpenClawPluginApi } from "openclaw/plugin-sdk/core";
 import { validateYonexusServerConfig } from "./core/config.js";
 import { createYonexusServerStore } from "./core/store.js";
 import { createServerTransport, type ServerTransport } from "./core/transport.js";
@@ -40,6 +43,8 @@ import { createServerRuleRegistry, YonexusServerRuleRegistry } from "./core/rule
 import { encodeRuleMessage } from "../../Yonexus.Protocol/src/index.js";
 import type { ServerPersistenceData } from "./core/persistence.js";
 
+const PLUGIN_DATA_DIR = path.join(os.homedir(), ".openclaw", "yonexus-server");
+
 const _G = globalThis as Record<string, unknown>;
 const _STARTED_KEY   = "_yonexusServerStarted";
 const _TRANSPORT_KEY = "_yonexusServerTransport";
@@ -58,14 +63,8 @@ const manifest: YonexusServerPluginManifest = {
   description: "Yonexus central hub plugin for cross-instance OpenClaw communication"
 };
 
-export function createYonexusServerPlugin(api: {
+export function createYonexusServerPlugin(api: OpenClawPluginApi): void {
-  rootDir: string;
+  const stateFilePath = path.join(PLUGIN_DATA_DIR, "state.json");
-  pluginConfig: unknown;
-  registrationMode?: string;  // "full" (gateway) | "cli-metadata" | "setup-only" | "setup-runtime"
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  registerCli?: (registrar: (ctx: { program: any }) => void, opts?: { commands?: string[] }) => void;
-}): void {
-  const stateFilePath = path.join(api.rootDir, "state.json");
 
   // Register CLI regardless of whether the gateway is already running.
   // The CLI process is a separate invocation that reads from the persisted state file.
@@ -162,10 +161,18 @@ export function createYonexusServerPlugin(api: {
     onClientAuthenticated: onClientAuthenticatedCallbacks
   };
 
-  // 3. Start the runtime only once — the globalThis flag survives hot-reload
+  // 3. Runtime startup — only fire when the gateway boots, not eagerly during
+  //    register() inside one-shot CLI subprocesses (e.g. `openclaw completion`).
+  //    Without this gate, every CLI invocation that loads plugins would try to
+  //    bind the WebSocket listener; EADDRINUSE recovery handled the gateway-
+  //    already-running case but a genuine first-bind in a subprocess would
+  //    keep that process alive forever.
+  api.on("gateway_start", () => {
     if (_G[_STARTED_KEY]) return;
     _G[_STARTED_KEY] = true;
 
+    fs.mkdirSync(PLUGIN_DATA_DIR, { recursive: true });
+
     const config = validateYonexusServerConfig(api.pluginConfig);
     const store = createYonexusServerStore(stateFilePath);
 
@@ -196,26 +203,30 @@ export function createYonexusServerPlugin(api: {
       }
     });
     runtimeRef = runtime;
-
+    _G["_yonexusServerRuntime"] = runtime;
-  const shutdown = (): void => {
-    runtime.stop().catch((err: unknown) => {
-      console.error("[yonexus-server] shutdown error:", err);
-    });
-  };
-  process.once("SIGTERM", shutdown);
-  process.once("SIGINT", shutdown);
 
     runtime.start().catch((err: unknown) => {
-    // EADDRINUSE means the gateway is already running (e.g. this is a CLI invocation).
-    // Any other error is a real problem worth logging.
       const code = (err as NodeJS.ErrnoException | undefined)?.code;
       if (code !== "EADDRINUSE") {
         console.error("[yonexus-server] failed to start:", err);
       }
     });
+  });
+
+  api.on("gateway_stop", () => {
+    const runtime = _G["_yonexusServerRuntime"] as ReturnType<typeof createYonexusServerRuntime> | undefined;
+    runtime?.stop().catch((err: unknown) => {
+      console.error("[yonexus-server] shutdown error:", err);
+    });
+  });
 }
 
-export default createYonexusServerPlugin;
+export default definePluginEntry({
+  id: "yonexus-server",
+  name: "Yonexus.Server",
+  description: "Yonexus central hub plugin for cross-instance OpenClaw communication",
+  register: createYonexusServerPlugin,
+});
 export {
   createServerTransport,
   YonexusServerTransport,

plugin/openclaw.plugin.json

@@ -1,10 +1,13 @@
 {
   "id": "yonexus-server",
   "name": "Yonexus.Server",
-  "version": "0.1.0",
   "description": "Yonexus central hub plugin for cross-instance OpenClaw communication",
-  "entry": "./dist/Yonexus.Server/plugin/index.js",
+  "activation": {
-  "permissions": [],
+    "onStartup": true
+  },
+  "commandAliases": [
+    { "name": "yonexus-server" }
+  ],
   "configSchema": {
     "type": "object",
     "additionalProperties": false,