update for 1. 优化 2.中英切换

frontend/src/contexts/LanguageContext.tsx

@@ -0,0 +1,36 @@
+import React, { createContext, useContext, useState } from 'react';
+import { en } from '../locales/en';
+import type { Translations } from '../locales/en';
+import { zh } from '../locales/zh';
+
+export type Lang = 'en' | 'zh';
+
+interface LanguageContextValue {
+  lang: Lang;
+  t: Translations;
+  toggleLang: () => void;
+}
+
+const LanguageContext = createContext<LanguageContextValue>({
+  lang: 'en',
+  t: en,
+  toggleLang: () => {},
+});
+
+export function LanguageProvider({ children }: { children: React.ReactNode }) {
+  const [lang, setLang] = useState<Lang>('en');
+
+  const toggleLang = () => setLang(l => (l === 'en' ? 'zh' : 'en'));
+
+  const t = lang === 'en' ? en : zh;
+
+  return (
+    <LanguageContext.Provider value={{ lang, t, toggleLang }}>
+      {children}
+    </LanguageContext.Provider>
+  );
+}
+
+export function useLanguage() {
+  return useContext(LanguageContext);
+}

frontend/src/contexts/PageStateContext.tsx

@@ -99,6 +99,10 @@ export interface ComplianceState {
   findings: ComplianceFindingEvent[];
   done: ComplianceDonePayload | null;
   errorText: string;
+  // Direction B additions:
+  analysisId: string | null;
+  isReadOnly: boolean;
+  activeFindingId: string | null;
 }
 
 const COMPLIANCE_INIT: ComplianceState = {
@@ -110,6 +114,9 @@ const COMPLIANCE_INIT: ComplianceState = {
   findings: [],
   done: null,
   errorText: '',
+  analysisId: null,
+  isReadOnly: false,
+  activeFindingId: null,
 };
 
 // ── Perception types ──────────────────────────────────────────────────────────

frontend/src/contexts/index.ts

@@ -2,6 +2,8 @@ export { ThemeProvider, useTheme } from './ThemeContext';
 export { AuthProvider, useAuth } from './AuthContext';
 export type { AuthUser } from './AuthContext';
 export { PageStateProvider, usePageState } from './PageStateContext';
+export { LanguageProvider, useLanguage } from './LanguageContext';
+export type { Lang } from './LanguageContext';
 export type {
   RagChatState,
   RagMessage,