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).

no-reply-api/package-lock.json

@@ -0,0 +1,12 @@
+{
+  "name": "whispergate-no-reply-api",
+  "version": "0.1.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "whispergate-no-reply-api",
+      "version": "0.1.0"
+    }
+  }
+}