fix(i18n): complete Simplified Chinese core and plugin translations (#1542)

* fix(i18n): complete Chinese onboarding and navigation labels

* fix(i18n): translate remaining Chinese core and plugin interfaces

* fix(i18n): translate host editor tab overflow controls

* fix(i18n): use consistent Chinese fleet terminology

* fix(i18n): localize hardcoded controls and plugin views

* fix(i18n): translate built-in homepage widget catalog

* test(homepage): follow translated timezone placeholder

* fix(i18n): translate plugin-provided homepage widgets

* fix(i18n): localize feature settings section titles

plugins/homepage/src/frontend/dialogs/AddWidgetMenu.tsx

@@ -140,14 +140,18 @@ export function AddWidgetMenu({ state, onAdd, onClose }: AddWidgetMenuProps) {
                   {type.labelComponent ? (
                     <type.labelComponent part="name" />
                   ) : (
-                    type.name
+                    t(`homepage.widgets.${type.id}.name`, {
+                      defaultValue: type.name,
+                    })
                   )}
                 </span>
                 <span className="text-[10px] text-muted-foreground truncate">
                   {type.labelComponent ? (
                     <type.labelComponent part="description" />
                   ) : (
-                    type.description
+                    t(`homepage.widgets.${type.id}.description`, {
+                      defaultValue: type.description,
+                    })
                   )}
                 </span>
               </div>

plugins/homepage/src/frontend/dialogs/ClockEditForm.tsx

@@ -23,7 +23,7 @@ export function ClockEditForm({
           onChange={(e) =>
             onChange({ ...config, timezone: e.target.value || undefined })
           }
-          placeholder="America/New_York (leave blank for local)"
+          placeholder={t("homepage.timezonePlaceholder")}
           aria-invalid={invalidTimezone}
           className={
             invalidTimezone ? "h-8 text-sm border-destructive" : "h-8 text-sm"

plugins/homepage/src/frontend/dialogs/NotesEditForm.tsx

@@ -16,7 +16,7 @@ export function NotesEditForm({
         <Textarea
           value={config.content}
           onChange={(e) => onChange({ ...config, content: e.target.value })}
-          placeholder="Write your notes here..."
+          placeholder={t("homepage.notesPlaceholder")}
           className="text-sm min-h-[120px] resize-none rounded-none"
         />
       </div>

plugins/homepage/src/frontend/dialogs/WeatherEditForm.tsx

@@ -17,7 +17,7 @@ export function WeatherEditForm({
         <Input
           value={config.location}
           onChange={(e) => onChange({ ...config, location: e.target.value })}
-          placeholder="New York, London, Tokyo..."
+          placeholder={t("homepage.locationPlaceholder")}
           className="h-8 text-sm"
         />
       </div>

plugins/homepage/src/frontend/widgets/NotesWidget.tsx

@@ -1,3 +1,4 @@
+import { useTranslation } from "@termix/plugin-sdk/frontend";
 import { StickyNote } from "lucide-react";
 import { registerWidget } from "./WidgetRegistry";
 import {
@@ -8,6 +9,7 @@ import {
 import { WidgetTitle } from "@termix/plugin-sdk/ui";
 
 function NotesWidget({ widget, config }: WidgetComponentProps<NotesConfig>) {
+  const { t } = useTranslation();
   const { content, backgroundColor } = config;
 
   return (
@@ -19,7 +21,9 @@ function NotesWidget({ widget, config }: WidgetComponentProps<NotesConfig>) {
       <div className="flex-1 overflow-auto p-3">
         <pre className="text-xs text-foreground whitespace-pre-wrap break-words font-sans leading-relaxed select-text w-full">
           {content || (
-            <span className="text-muted-foreground italic">Empty note...</span>
+            <span className="text-muted-foreground italic">
+              {t("homepage.emptyNote")}
+            </span>
           )}
         </pre>
       </div>

plugins/homepage/src/frontend/widgets/WeatherWidget.tsx

@@ -100,7 +100,7 @@ function WeatherWidget({
   if (error) {
     return (
       <div className="flex items-center justify-center w-full h-full text-xs text-destructive/70 p-3 text-center">
-        Could not load weather for "{location}"
+        {t("homepage.weatherLoadFailed", { location })}
       </div>
     );
   }
@@ -108,7 +108,7 @@ function WeatherWidget({
   if (!data) {
     return (
       <div className="flex items-center justify-center w-full h-full text-xs text-muted-foreground/50">
-        Loading...
+        {t("common.loading")}
       </div>
     );
   }
@@ -138,7 +138,7 @@ function WeatherWidget({
               {desc}
             </span>
             <span className="text-[10px] text-muted-foreground/70">
-              Feels like {displayFeels}
+              {t("homepage.feelsLike", { temperature: displayFeels })}
             </span>
           </div>
         </div>