Bump release notes to v0.0.18 (#244)

* Bump version to 0.0.18

* Trim release notes for v0.0.18

package.json

@@ -2,7 +2,7 @@
   "name": "open-seo",
   "private": true,
   "sideEffects": false,
-  "version": "0.0.17",
+  "version": "0.0.18",
   "type": "module",
   "packageManager": "pnpm@10.30.1",
   "scripts": {

release-notes/v0.0.18.md

@@ -0,0 +1,16 @@
+Adds self-hosted Google Search Console support, plus a few setup and error-message fixes.
+
+## What's new
+
+- Connect Google Search Console in self-hosted OpenSEO with your own Google OAuth client.
+- Use the new Search Console MCP tools for performance data and URL inspection from your own GSC account.
+
+## Improved
+
+- Temporary DataForSEO 5xx errors now get quick retries and a clearer "temporarily unavailable" message.
+
+## Fixed
+
+- Invalid domains now fail earlier with a clearer "enter a valid domain" message.
+
+Full Changelog: https://github.com/every-app/open-seo/compare/v0.0.17...v0.0.18