feat: integrate codex queue and pipeline oa flow

- add Codex Queue microservice/frontend integration and related deployment docs
- document 100% Pipeline OA event-flow requirements and E2E gates
- harden Pipeline frontend Gantt/timeline E2E assertions and rendering

src/components/provider-gateway/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@unidesk/provider-gateway",
-  "version": "0.2.8",
+  "version": "0.2.9",
   "private": true,
   "type": "module",
   "scripts": {

src/components/provider-gateway/src/index.ts

@@ -1350,7 +1350,7 @@ function assertAllowedMicroserviceBase(rawBaseUrl: string): URL {
   const baseUrl = new URL(rawBaseUrl);
   if (baseUrl.protocol !== "http:") throw new Error(`microservice backend only supports http URLs, got ${baseUrl.protocol}`);
   const host = baseUrl.hostname.toLowerCase();
-  const allowedHosts = new Set(["127.0.0.1", "localhost", "host.docker.internal", "todo-note"]);
+  const allowedHosts = new Set(["127.0.0.1", "localhost", "host.docker.internal", "todo-note", "codex-queue"]);
   if (!allowedHosts.has(host)) throw new Error(`microservice backend host is not allowed: ${baseUrl.hostname}`);
   return baseUrl;
 }