Add release headers service, runtime-aware API header handling, and i18n updates for release configuration

- Implement `releaseHeaders.js` to manage release-related HTTP headers.
- Update requests to include runtime-based release headers.
- Extend i18n phrases across multiple locales for release runtime and configuration labels.
- Enhance unit tests for header building and API availability error handling.

tests/unit/superuser-releases.spec.js

@@ -18,6 +18,7 @@ import {
   releaseManagerControlApiCandidates,
   setReleaseManagerControlApiUrl,
 } from "@/services/superuserReleases.js";
+import { deployCoolifyGatewayRoutes } from "@/services/superuserCoolify.js";
 import { __configureRequestQueueForTests, __resetRequestQueueForTests } from "@/services/requestQueue.js";
 
 describe("superuser release manager service", () => {
@@ -71,4 +72,20 @@ describe("superuser release manager service", () => {
     expect(localStorage.getItem(RELEASE_MANAGER_CONTROL_API_STORAGE_KEY)).toBeNull();
     expect(releaseManagerControlApiCandidates()).toContain("https://api.truckwash.io:4433");
   });
+
+  it("keeps Coolify route deployment on the release manager control API", async () => {
+    setReleaseManagerControlApiUrl("https://control.example.test");
+    axiosMock.mockResolvedValueOnce({ status: 200, data: { success: true } });
+
+    await deployCoolifyGatewayRoutes({ dry_run: true });
+
+    expect(axiosMock).toHaveBeenCalledWith(
+      expect.objectContaining({
+        url: "https://control.example.test/superuser/coolify/load-balancer/routes/deploy",
+        method: "POST",
+        data: { dry_run: true },
+        __skipReleaseApiRewrite: true,
+      })
+    );
+  });
 });