feat(i18n): improve ai chat and settings localization

app/(dashboard)/chat/actions.ts

@@ -1,14 +1,32 @@
 "use server";
 
+import { getSqliteConnection } from "@/server/db/client";
+import { ContentTranslationService, getContentFallbackLocale } from "@/server/i18n/content";
+import { resolveFreelancerLocale } from "@/server/i18n/resolver";
 import { requireFreelancerBackend } from "@/server/web/freelancer";
 
 export async function listChatSessionsAction() {
-  const { actor, service } = await requireFreelancerBackend();
-  return service.listChatSessions(actor).map((session) => ({
-    id: session.id,
-    title: session.title,
-    created_at: session.createdAt.toISOString(),
-  }));
+  const { context, actor, service } = await requireFreelancerBackend();
+  const locale = await resolveFreelancerLocale(context);
+  const content = new ContentTranslationService(getSqliteConnection().db);
+  const localization = content.getLocalizationContext(actor);
+  const sessions = service.listChatSessions(actor);
+  const translations = content.listBatch("chat_session", sessions.map((session) => session.id));
+
+  return sessions.map((session) => {
+    const resolved = content.resolveEntity("chat_session", session, {
+      locale: locale.locale,
+      fallbackLocale: getContentFallbackLocale(locale.locale, localization),
+      defaultLocale: localization.defaultLocale,
+      translations: translations.get(session.id) ?? [],
+    });
+
+    return {
+      id: session.id,
+      title: resolved.title,
+      created_at: session.createdAt.toISOString(),
+    };
+  });
 }
 
 export async function listChatMessagesAction(sessionId: string) {
@@ -17,12 +35,18 @@ export async function listChatMessagesAction(sessionId: string) {
     id: message.id,
     role: message.role,
     content: message.content,
+    source_locale: message.sourceLocale,
   }));
 }
 
 export async function createChatSessionAction(title: string) {
-  const { actor, service } = await requireFreelancerBackend();
+  const { context, actor, service } = await requireFreelancerBackend();
+  const locale = await resolveFreelancerLocale(context);
   const session = service.createChatSession(actor, { title });
+  const content = new ContentTranslationService(getSqliteConnection().db);
+  content.upsertEntityTranslations("chat_session", session.id, {
+    [locale.locale]: { title },
+  });
   return {
     id: session.id,
     title: session.title,