feat(auth): add user identity verification system with new screens

Add comprehensive identity verification flow including:
- New verification guide screen at /verification-guide for selecting identity type
- New verification form screen at /verification-form for submitting verification documents
- Verification settings screen at /profile/verification for managing verification status
- Move terms and privacy policy to root-level routes (/terms, /privacy)
- Update login to require active terms agreement checkbox
- Database: add in-memory fallback when OPFS is unavailable on web

BREAKING CHANGE: Terms and privacy policy routes moved from /profile/terms and /profile/privacy to /terms and /privacy

src/screens/profile/SettingsScreen.tsx

@@ -254,7 +254,7 @@ export const SettingsScreen: React.FC = () => {
         router.push(hrefs.hrefProfileEdit());
         break;
       case 'verification':
-        router.push('/profile/verification');
+        router.push(hrefs.hrefProfileVerification());
         break;
       case 'notification_settings':
         router.push(hrefs.hrefProfileNotifications());

src/screens/profile/VerificationSettingsScreen.tsx

@@ -84,7 +84,7 @@ export const VerificationSettingsScreen: React.FC = () => {
   }, []);
 
   const handleStartVerification = () => {
-    router.push('/auth/verification-guide');
+    router.push(hrefs.hrefVerificationGuide());
   };
 
   const handleViewRecords = () => {
@@ -109,27 +109,10 @@ export const VerificationSettingsScreen: React.FC = () => {
   const identityText = IDENTITY_TEXT[status?.identity || 'general'];
 
   return (
-    <SafeAreaView style={styles.container}>
-      <View style={styles.header}>
-        <TouchableOpacity
-          style={styles.backButton}
-          onPress={() => router.back()}
-          activeOpacity={0.8}
-        >
-          <MaterialCommunityIcons
-            name="arrow-left"
-            size={24}
-            color={colors.text?.primary || '#333'}
-          />
-        </TouchableOpacity>
-        <Text style={styles.headerTitle}>身份认证</Text>
-        <View style={styles.headerRight} />
-      </View>
-
-      <ScrollView
-        contentContainerStyle={styles.scrollContent}
-        showsVerticalScrollIndicator={false}
-      >
+    <ScrollView
+      contentContainerStyle={styles.scrollContent}
+      showsVerticalScrollIndicator={false}
+    >
         {/* 状态卡片 */}
         <View style={styles.statusCard}>
           <View style={[styles.statusIconContainer, { backgroundColor: statusConfig.color + '20' }]}>
@@ -167,7 +150,7 @@ export const VerificationSettingsScreen: React.FC = () => {
               <View style={styles.benefitItem}>
                 <View style={styles.benefitIconContainer}>
                   <MaterialCommunityIcons
-                    name="verified"
+                    name="check-decagram"
                     size={24}
                     color={THEME_COLORS.primary}
                   />
@@ -183,7 +166,7 @@ export const VerificationSettingsScreen: React.FC = () => {
               <View style={styles.benefitItem}>
                 <View style={styles.benefitIconContainer}>
                   <MaterialCommunityIcons
-                    name="lock-open-variant"
+                    name="lock-open-outline"
                     size={24}
                     color={THEME_COLORS.primary}
                   />
@@ -199,7 +182,7 @@ export const VerificationSettingsScreen: React.FC = () => {
               <View style={styles.benefitItem}>
                 <View style={styles.benefitIconContainer}>
                   <MaterialCommunityIcons
-                    name="account-group"
+                    name="account-group-outline"
                     size={24}
                     color={THEME_COLORS.primary}
                   />
@@ -278,7 +261,6 @@ export const VerificationSettingsScreen: React.FC = () => {
           </Text>
         </View>
       </ScrollView>
-    </SafeAreaView>
   );
 };
 

src/screens/profile/index.ts

@@ -17,6 +17,7 @@ export { AccountSecurityScreen } from './AccountSecurityScreen';
 export { AboutScreen } from './AboutScreen';
 export { TermsOfServiceScreen } from './TermsOfServiceScreen';
 export { PrivacyPolicyScreen } from './PrivacyPolicyScreen';
+export { VerificationSettingsScreen } from './VerificationSettingsScreen';
 
 // 导出 Hook 供需要自定义的场景使用
 export { useUserProfile, createSharedProfileStyles, TABS, TAB_ICONS } from './useUserProfile';