fix: remove gateway restart from installer, let user restart manually

Root cause: installer called 'openclaw gateway restart' (async via systemd)
then immediately validated model visibility — race condition caused validation
to fail and rollback the correct config.

Fix: remove restart + validation from script entirely. Script only writes config.
User restarts gateway manually after install completes.

Also fix CONFIG.example.json: contextWindow 4096->200000, maxTokens 64->8192
(OpenClaw requires minimum 16000 contextWindow).

scripts/install-whispergate-openclaw.mjs

@@ -45,42 +45,6 @@ function runOpenclaw(args, { allowFail = false } = {}) {
   }
 }
 
-function sleep(ms) {
-  return new Promise((resolve) => setTimeout(resolve, ms));
-}
-
-async function waitForGatewayReady(maxWaitMs = 30000) {
-  const start = Date.now();
-  const interval = 1500;
-  while (Date.now() - start < maxWaitMs) {
-    const probe = runOpenclaw(["gateway", "status"], { allowFail: true }) || "";
-    if (probe.includes("RPC probe: ok")) return true;
-    console.log(`[whispergate] waiting for gateway ready... (${Math.round((Date.now() - start) / 1000)}s)`);
-    await sleep(interval);
-  }
-  return false;
-}
-
-async function validateNoReplyModelAvailable(retries = 5, delayMs = 2000) {
-  const modelRef = `${NO_REPLY_PROVIDER_ID}/${NO_REPLY_MODEL_ID}`;
-
-  for (let attempt = 1; attempt <= retries; attempt++) {
-    const list = runOpenclaw(["models", "list"], { allowFail: true }) || "";
-    if (list.includes(modelRef)) {
-      const status = runOpenclaw(["models", "status", "--json"], { allowFail: true }) || "";
-      if (status.includes(NO_REPLY_PROVIDER_ID)) {
-        console.log(`[whispergate] model validation passed on attempt ${attempt}`);
-        return;
-      }
-    }
-    if (attempt < retries) {
-      console.log(`[whispergate] model not yet visible (attempt ${attempt}/${retries}), retrying in ${delayMs}ms...`);
-      await sleep(delayMs);
-    }
-  }
-
-  throw new Error(`post-install validation failed: model not listed after ${retries} attempts: ${modelRef}`);
-}
 
 function getJson(pathKey) {
   const out = runOpenclaw(["config", "get", pathKey, "--json"], { allowFail: true });
@@ -198,23 +162,15 @@ if (mode === "install") {
     };
     setJson(PATH_PROVIDERS, providers);
 
-    runOpenclaw(["gateway", "restart"]);
-    console.log("[whispergate] gateway restart issued, waiting for ready...");
-    const ready = await waitForGatewayReady();
-    if (!ready) {
-      throw new Error("gateway did not become ready within 30s after restart");
-    }
-    console.log("[whispergate] gateway ready, validating model...");
-    await validateNoReplyModelAvailable();
-
     const after = {
       [PATH_PLUGINS_LOAD]: getJson(PATH_PLUGINS_LOAD),
       [PATH_PLUGIN_ENTRY]: getJson(PATH_PLUGIN_ENTRY),
       [PATH_PROVIDERS]: getJson(PATH_PROVIDERS),
     };
     writeRecord("install", before, after);
-    console.log("[whispergate] install ok");
+    console.log("[whispergate] install ok (config written)");
     console.log(`[whispergate] record: ${RECORD_PATH}`);
+    console.log("[whispergate] >>> restart gateway to apply: openclaw gateway restart");
   } catch (e) {
     fs.copyFileSync(BACKUP_PATH, OPENCLAW_CONFIG_PATH);
     console.error(`[whispergate] install failed; rollback complete: ${String(e)}`);