fix(runtime): stabilize navigation and custom errors

packages/csr/src/nav-runtime.ts

@@ -367,6 +367,27 @@ export const NAV_RUNTIME = String.raw`
       });
   }
 
+  function syncI18n(nextDocument) {
+    var script = Array.prototype.find.call(
+      nextDocument.querySelectorAll("script:not([src])"),
+      function (node) { return /^window\.__wrnI18n=/.test(String(node.textContent || "").trim()); },
+    );
+    if (!script) return;
+    var match = /^window\.__wrnI18n=([\s\S]*);\s*$/.exec(String(script.textContent || "").trim());
+    if (!match) return;
+    try {
+      var incoming = JSON.parse(match[1]);
+      var current = window.__wrnI18n || {};
+      var translator = current.t;
+      var setter = current.set;
+      window.__wrnI18n = incoming;
+      if (translator) window.__wrnI18n.t = translator;
+      if (setter) window.__wrnI18n.set = setter;
+    } catch (error) {
+      console.error("[wrnexus] failed to synchronize i18n data", error);
+    }
+  }
+
   /**
    * Run explicit component cleanup before removing the existing page.
    *
@@ -516,6 +537,8 @@ export const NAV_RUNTIME = String.raw`
 
     syncPreservationPolicy(doc);
 
+    syncI18n(doc);
+
     syncWrnStyles(doc);
 
     var importedNodes = [];
@@ -568,6 +591,10 @@ export const NAV_RUNTIME = String.raw`
      */
     rehydrate(currentApp);
 
+    if (window.__wrnLang && typeof window.__wrnLang.bind === "function") {
+      window.__wrnLang.bind(currentApp);
+    }
+
     if (!isPop) {
       history.pushState(
         {