diff --git a/src/components/privacy/BlockedUsers.tsx b/src/components/privacy/BlockedUsers.tsx
index 37b8da5b..04f8bfe5 100644
--- a/src/components/privacy/BlockedUsers.tsx
+++ b/src/components/privacy/BlockedUsers.tsx
@@ -1,29 +1,17 @@
 import { useState, useEffect } from 'react';
 import { Button } from '@/components/ui/button';
-import { Badge } from '@/components/ui/badge';
 import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
 import { AlertDialog, AlertDialogAction, AlertDialogCancel, AlertDialogContent, AlertDialogDescription, AlertDialogFooter, AlertDialogHeader, AlertDialogTitle, AlertDialogTrigger } from '@/components/ui/alert-dialog';
 import { UserX, Trash2 } from 'lucide-react';
 import { supabase } from '@/integrations/supabase/client';
 import { useAuth } from '@/hooks/useAuth';
-import { useToast } from '@/hooks/use-toast';
-
-interface BlockedUser {
-  id: string;
-  blocked_id: string;
-  reason?: string;
-  created_at: string;
-  blocked_profile?: {
-    username: string;
-    display_name?: string;
-    avatar_url?: string;
-  };
-}
+import { handleError, handleSuccess } from '@/lib/errorHandler';
+import { logger } from '@/lib/logger';
+import type { UserBlock } from '@/types/privacy';
 
 export function BlockedUsers() {
   const { user } = useAuth();
-  const { toast } = useToast();
-  const [blockedUsers, setBlockedUsers] = useState<BlockedUser[]>([]);
+  const [blockedUsers, setBlockedUsers] = useState<UserBlock[]>([]);
   const [loading, setLoading] = useState(true);
 
   useEffect(() => {
@@ -43,7 +31,15 @@ export function BlockedUsers() {
         .eq('blocker_id', user.id)
         .order('created_at', { ascending: false });
 
-      if (blocksError) throw blocksError;
+      if (blocksError) {
+        logger.error('Failed to fetch user blocks', {
+          userId: user.id,
+          action: 'fetch_blocked_users',
+          error: blocksError.message,
+          errorCode: blocksError.code
+        });
+        throw blocksError;
+      }
 
       if (!blocks || blocks.length === 0) {
         setBlockedUsers([]);
@@ -57,46 +53,99 @@ export function BlockedUsers() {
         .select('user_id, username, display_name, avatar_url')
         .in('user_id', blockedIds);
 
-      if (profilesError) throw profilesError;
+      if (profilesError) {
+        logger.error('Failed to fetch blocked user profiles', {
+          userId: user.id,
+          action: 'fetch_blocked_user_profiles',
+          error: profilesError.message,
+          errorCode: profilesError.code
+        });
+        throw profilesError;
+      }
 
       // Combine the data
       const blockedUsersWithProfiles = blocks.map(block => ({
         ...block,
+        blocker_id: user.id,
         blocked_profile: profiles?.find(p => p.user_id === block.blocked_id)
       }));
 
       setBlockedUsers(blockedUsersWithProfiles);
-    } catch (error: any) {
-      console.error('Error fetching blocked users:', error);
-      toast({
-        title: 'Error',
-        description: 'Failed to load blocked users',
-        variant: 'destructive'
+      
+      logger.info('Blocked users fetched successfully', {
+        userId: user.id,
+        action: 'fetch_blocked_users',
+        count: blockedUsersWithProfiles.length
+      });
+    } catch (error) {
+      logger.error('Error fetching blocked users', {
+        userId: user.id,
+        action: 'fetch_blocked_users',
+        error: error instanceof Error ? error.message : String(error)
+      });
+      
+      handleError(error, {
+        action: 'Load blocked users',
+        userId: user.id
       });
     } finally {
       setLoading(false);
     }
   };
 
-  const handleUnblock = async (blockId: string, username: string) => {
+  const handleUnblock = async (blockId: string, blockedUserId: string, username: string) => {
+    if (!user) return;
+    
     try {
       const { error } = await supabase
         .from('user_blocks')
         .delete()
         .eq('id', blockId);
 
-      if (error) throw error;
+      if (error) {
+        logger.error('Failed to unblock user', {
+          userId: user.id,
+          action: 'unblock_user',
+          targetUserId: blockedUserId,
+          error: error.message,
+          errorCode: error.code
+        });
+        throw error;
+      }
+
+      // Log to audit trail
+      await supabase.from('profile_audit_log').insert({
+        user_id: user.id,
+        changed_by: user.id,
+        action: 'user_unblocked',
+        changes: {
+          blocked_user_id: blockedUserId,
+          username,
+          timestamp: new Date().toISOString()
+        }
+      });
 
       setBlockedUsers(prev => prev.filter(block => block.id !== blockId));
-      toast({
-        title: 'User unblocked',
-        description: `You have unblocked @${username}`
+      
+      logger.info('User unblocked successfully', {
+        userId: user.id,
+        action: 'unblock_user',
+        targetUserId: blockedUserId
       });
-    } catch (error: any) {
-      toast({
-        title: 'Error',
-        description: 'Failed to unblock user',
-        variant: 'destructive'
+      
+      handleSuccess('User unblocked', `You have unblocked @${username}`);
+    } catch (error) {
+      logger.error('Error unblocking user', {
+        userId: user.id,
+        action: 'unblock_user',
+        targetUserId: blockedUserId,
+        error: error instanceof Error ? error.message : String(error)
+      });
+      
+      handleError(error, {
+        action: 'Unblock user',
+        userId: user.id,
+        metadata: { targetUsername: username }
       });
     }
   };
@@ -178,7 +227,11 @@ export function BlockedUsers() {
               <AlertDialogFooter>
                 <AlertDialogCancel>Cancel</AlertDialogCancel>
                 <AlertDialogAction 
-                  onClick={() => handleUnblock(block.id, block.blocked_profile?.username || 'user')}
+                  onClick={() => handleUnblock(
+                    block.id,
+                    block.blocked_id,
+                    block.blocked_profile?.username || 'user'
+                  )}
                 >
                   Unblock
                 </AlertDialogAction>
@@ -189,4 +242,4 @@ export function BlockedUsers() {
       ))}
     </div>
   );
-}
\ No newline at end of file
+}
diff --git a/src/components/settings/PrivacyTab.tsx b/src/components/settings/PrivacyTab.tsx
index 1128f50d..22819342 100644
--- a/src/components/settings/PrivacyTab.tsx
+++ b/src/components/settings/PrivacyTab.tsx
@@ -6,156 +6,227 @@ import { Switch } from '@/components/ui/switch';
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
 import { Separator } from '@/components/ui/separator';
-import { useToast } from '@/hooks/use-toast';
+import { handleError, handleSuccess, AppError } from '@/lib/errorHandler';
+import { logger } from '@/lib/logger';
 import { useAuth } from '@/hooks/useAuth';
 import { useProfile } from '@/hooks/useProfile';
 import { supabase } from '@/integrations/supabase/client';
 import { Eye, UserX, Shield, Search } from 'lucide-react';
 import { BlockedUsers } from '@/components/privacy/BlockedUsers';
-interface PrivacySettings {
-  activity_visibility: 'public' | 'private';
-  search_visibility: boolean;
-  show_location: boolean;
-  show_age: boolean;
-  show_avatar: boolean;
-  show_bio: boolean;
-  show_activity_stats: boolean;
-  show_home_park: boolean;
-}
-interface ProfilePrivacy {
-  privacy_level: 'public' | 'private';
-  show_pronouns: boolean;
-}
+import type { PrivacySettings, PrivacyFormData } from '@/types/privacy';
+import { privacyFormSchema, privacySettingsSchema, DEFAULT_PRIVACY_SETTINGS } from '@/lib/privacyValidation';
+import { z } from 'zod';
+
 export function PrivacyTab() {
   const { user } = useAuth();
   const { data: profile, refreshProfile } = useProfile(user?.id);
-  const { toast } = useToast();
   const [loading, setLoading] = useState(false);
   const [preferences, setPreferences] = useState<PrivacySettings | null>(null);
-  const form = useForm<ProfilePrivacy & PrivacySettings>({
+  
+  const form = useForm<PrivacyFormData>({
     defaultValues: {
-      privacy_level: (profile?.privacy_level === 'friends' ? 'public' : profile?.privacy_level) || 'public',
+      privacy_level: profile?.privacy_level || 'public',
       show_pronouns: profile?.show_pronouns || false,
-      activity_visibility: 'public',
-      search_visibility: true,
-      show_location: false,
-      show_age: false,
-      show_avatar: true,
-      show_bio: true,
-      show_activity_stats: true,
-      show_home_park: false
+      ...DEFAULT_PRIVACY_SETTINGS
     }
   });
+
   useEffect(() => {
     fetchPreferences();
   }, [user]);
+
   const fetchPreferences = async () => {
     if (!user) return;
+    
     try {
-      const {
-        data,
-        error
-      } = await supabase.from('user_preferences').select('privacy_settings').eq('user_id', user.id).maybeSingle();
+      const { data, error } = await supabase
+        .from('user_preferences')
+        .select('privacy_settings')
+        .eq('user_id', user.id)
+        .maybeSingle();
+      
       if (error && error.code !== 'PGRST116') {
-        console.error('Error fetching preferences:', error);
-        return;
+        logger.error('Failed to fetch privacy preferences', {
+          userId: user.id,
+          action: 'fetch_privacy_preferences',
+          error: error.message,
+          errorCode: error.code
+        });
+        throw error;
       }
+      
       if (data?.privacy_settings) {
-        const privacySettings = data.privacy_settings as any;
-        setPreferences(privacySettings);
+        // Validate the data before using it
+        const validatedSettings = privacySettingsSchema.parse(data.privacy_settings);
+        setPreferences(validatedSettings);
+        
         form.reset({
-          privacy_level: profile?.privacy_level === 'friends' ? 'public' : profile?.privacy_level || 'public',
+          privacy_level: profile?.privacy_level || 'public',
           show_pronouns: profile?.show_pronouns || false,
-          ...privacySettings
+          ...validatedSettings
         });
       } else {
         // Initialize preferences if they don't exist
         await initializePreferences();
       }
     } catch (error) {
-      console.error('Error fetching preferences:', error);
+      logger.error('Error fetching privacy preferences', {
+        userId: user.id,
+        action: 'fetch_privacy_preferences',
+        error: error instanceof Error ? error.message : String(error)
+      });
+      
+      handleError(error, {
+        action: 'Load privacy settings',
+        userId: user.id
+      });
     }
   };
+
   const initializePreferences = async () => {
     if (!user) return;
-    const defaultSettings: PrivacySettings = {
-      activity_visibility: 'public',
-      search_visibility: true,
-      show_location: false,
-      show_age: false,
-      show_avatar: true,
-      show_bio: true,
-      show_activity_stats: true,
-      show_home_park: false
-    };
+    
     try {
-      const {
-        error
-      } = await supabase.from('user_preferences').insert([{
-        user_id: user.id,
-        privacy_settings: defaultSettings as any
-      }]);
-      if (error) throw error;
-      setPreferences(defaultSettings);
+      const { error } = await supabase
+        .from('user_preferences')
+        .insert([{
+          user_id: user.id,
+          privacy_settings: DEFAULT_PRIVACY_SETTINGS
+        }]);
+      
+      if (error) {
+        logger.error('Failed to initialize privacy preferences', {
+          userId: user.id,
+          action: 'initialize_privacy_preferences',
+          error: error.message
+        });
+        throw error;
+      }
+      
+      setPreferences(DEFAULT_PRIVACY_SETTINGS);
       form.reset({
-        privacy_level: (profile?.privacy_level === 'friends' ? 'public' : profile?.privacy_level) || 'public',
+        privacy_level: profile?.privacy_level || 'public',
         show_pronouns: profile?.show_pronouns || false,
-        ...defaultSettings
+        ...DEFAULT_PRIVACY_SETTINGS
       });
     } catch (error) {
-      console.error('Error initializing preferences:', error);
+      logger.error('Error initializing privacy preferences', {
+        userId: user.id,
+        action: 'initialize_privacy_preferences',
+        error: error instanceof Error ? error.message : String(error)
+      });
+      
+      handleError(error, {
+        action: 'Initialize privacy settings',
+        userId: user.id
+      });
     }
   };
-  const onSubmit = async (data: any) => {
-    if (!user) return;
-    setLoading(true);
-    try {
-      // Update profile privacy settings
-      const {
-        error: profileError
-      } = await supabase.from('profiles').update({
-        privacy_level: data.privacy_level,
-        show_pronouns: data.show_pronouns,
-        updated_at: new Date().toISOString()
-      }).eq('user_id', user.id);
-      if (profileError) throw profileError;
 
+  const onSubmit = async (data: PrivacyFormData) => {
+    if (!user) return;
+    
+    setLoading(true);
+    
+    try {
+      // Validate the form data
+      const validated = privacyFormSchema.parse(data);
+      
+      // Update profile privacy settings
+      const { error: profileError } = await supabase
+        .from('profiles')
+        .update({
+          privacy_level: validated.privacy_level,
+          show_pronouns: validated.show_pronouns,
+          updated_at: new Date().toISOString()
+        })
+        .eq('user_id', user.id);
+      
+      if (profileError) {
+        logger.error('Failed to update profile privacy', {
+          userId: user.id,
+          action: 'update_profile_privacy',
+          error: profileError.message,
+          errorCode: profileError.code
+        });
+        throw profileError;
+      }
+      
+      // Extract privacy settings (exclude profile fields)
+      const { privacy_level, show_pronouns, ...privacySettings } = validated;
+      
       // Update user preferences
-      const privacySettings: PrivacySettings = {
-        activity_visibility: data.activity_visibility,
-        search_visibility: data.search_visibility,
-        show_location: data.show_location,
-        show_age: data.show_age,
-        show_avatar: data.show_avatar,
-        show_bio: data.show_bio,
-        show_activity_stats: data.show_activity_stats,
-        show_home_park: data.show_home_park
-      };
-      const {
-        error: prefsError
-      } = await supabase.from('user_preferences').upsert([{
+      const { error: prefsError } = await supabase
+        .from('user_preferences')
+        .upsert([{
+          user_id: user.id,
+          privacy_settings: privacySettings,
+          updated_at: new Date().toISOString()
+        }]);
+      
+      if (prefsError) {
+        logger.error('Failed to update privacy preferences', {
+          userId: user.id,
+          action: 'update_privacy_preferences',
+          error: prefsError.message,
+          errorCode: prefsError.code
+        });
+        throw prefsError;
+      }
+      
+      // Log to audit trail
+      await supabase.from('profile_audit_log').insert({
         user_id: user.id,
-        privacy_settings: privacySettings as any,
-        updated_at: new Date().toISOString()
-      }]);
-      if (prefsError) throw prefsError;
+        changed_by: user.id,
+        action: 'privacy_settings_updated',
+        changes: {
+          previous: preferences,
+          updated: privacySettings,
+          timestamp: new Date().toISOString()
+        }
+      });
+      
       await refreshProfile();
       setPreferences(privacySettings);
-      toast({
-        title: 'Privacy settings updated',
-        description: 'Your privacy preferences have been successfully saved.'
+      
+      logger.info('Privacy settings updated successfully', {
+        userId: user.id,
+        action: 'update_privacy_settings'
       });
-    } catch (error: any) {
-      toast({
-        title: 'Error',
-        description: error.message || 'Failed to update privacy settings',
-        variant: 'destructive'
+      
+      handleSuccess(
+        'Privacy settings updated',
+        'Your privacy preferences have been successfully saved.'
+      );
+    } catch (error) {
+      logger.error('Failed to update privacy settings', {
+        userId: user.id,
+        action: 'update_privacy_settings',
+        error: error instanceof Error ? error.message : String(error)
       });
+      
+      if (error instanceof z.ZodError) {
+        handleError(
+          new AppError(
+            'Invalid privacy settings',
+            'VALIDATION_ERROR',
+            error.errors.map(e => e.message).join(', ')
+          ),
+          { action: 'Validate privacy settings', userId: user.id }
+        );
+      } else {
+        handleError(error, {
+          action: 'Update privacy settings',
+          userId: user.id
+        });
+      }
     } finally {
       setLoading(false);
     }
   };
-  return <div className="space-y-8">
+
+  return (
+    <div className="space-y-8">
       <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-8">
         {/* Profile Visibility */}
         <div className="space-y-4">
@@ -173,7 +244,10 @@ export function PrivacyTab() {
             <CardContent className="space-y-6">
               <div className="space-y-3">
                 <Label htmlFor="privacy_level">Profile Privacy</Label>
-                <Select value={form.watch('privacy_level')} onValueChange={(value: 'public' | 'private') => form.setValue('privacy_level', value)}>
+                <Select 
+                  value={form.watch('privacy_level')} 
+                  onValueChange={(value: 'public' | 'private') => form.setValue('privacy_level', value)}
+                >
                   <SelectTrigger>
                     <SelectValue />
                   </SelectTrigger>
@@ -195,7 +269,10 @@ export function PrivacyTab() {
                     Display your preferred pronouns on your profile
                   </p>
                 </div>
-                <Switch checked={form.watch('show_pronouns')} onCheckedChange={checked => form.setValue('show_pronouns', checked)} />
+                <Switch 
+                  checked={form.watch('show_pronouns')} 
+                  onCheckedChange={checked => form.setValue('show_pronouns', checked)} 
+                />
               </div>
 
               <div className="flex items-center justify-between">
@@ -205,7 +282,10 @@ export function PrivacyTab() {
                     Display your location on your profile
                   </p>
                 </div>
-                <Switch checked={form.watch('show_location')} onCheckedChange={checked => form.setValue('show_location', checked)} />
+                <Switch 
+                  checked={form.watch('show_location')} 
+                  onCheckedChange={checked => form.setValue('show_location', checked)} 
+                />
               </div>
 
               <div className="flex items-center justify-between">
@@ -215,7 +295,10 @@ export function PrivacyTab() {
                     Display your birth date on your profile
                   </p>
                 </div>
-                <Switch checked={form.watch('show_age')} onCheckedChange={checked => form.setValue('show_age', checked)} />
+                <Switch 
+                  checked={form.watch('show_age')} 
+                  onCheckedChange={checked => form.setValue('show_age', checked)} 
+                />
               </div>
 
               <div className="flex items-center justify-between">
@@ -225,7 +308,10 @@ export function PrivacyTab() {
                     Display your profile picture
                   </p>
                 </div>
-                <Switch checked={form.watch('show_avatar')} onCheckedChange={checked => form.setValue('show_avatar', checked)} />
+                <Switch 
+                  checked={form.watch('show_avatar')} 
+                  onCheckedChange={checked => form.setValue('show_avatar', checked)} 
+                />
               </div>
 
               <div className="flex items-center justify-between">
@@ -235,7 +321,10 @@ export function PrivacyTab() {
                     Display your profile bio/description
                   </p>
                 </div>
-                <Switch checked={form.watch('show_bio')} onCheckedChange={checked => form.setValue('show_bio', checked)} />
+                <Switch 
+                  checked={form.watch('show_bio')} 
+                  onCheckedChange={checked => form.setValue('show_bio', checked)} 
+                />
               </div>
 
               <div className="flex items-center justify-between">
@@ -245,7 +334,10 @@ export function PrivacyTab() {
                     Display your ride counts and park visits
                   </p>
                 </div>
-                <Switch checked={form.watch('show_activity_stats')} onCheckedChange={checked => form.setValue('show_activity_stats', checked)} />
+                <Switch 
+                  checked={form.watch('show_activity_stats')} 
+                  onCheckedChange={checked => form.setValue('show_activity_stats', checked)} 
+                />
               </div>
 
               <div className="flex items-center justify-between">
@@ -255,7 +347,10 @@ export function PrivacyTab() {
                     Display your home park preference
                   </p>
                 </div>
-                <Switch checked={form.watch('show_home_park')} onCheckedChange={checked => form.setValue('show_home_park', checked)} />
+                <Switch 
+                  checked={form.watch('show_home_park')} 
+                  onCheckedChange={checked => form.setValue('show_home_park', checked)} 
+                />
               </div>
               
             </CardContent>
@@ -280,7 +375,10 @@ export function PrivacyTab() {
             <CardContent className="space-y-6">
               <div className="space-y-3">
                 <Label htmlFor="activity_visibility">Activity Visibility</Label>
-                <Select value={form.watch('activity_visibility')} onValueChange={(value: 'public' | 'private') => form.setValue('activity_visibility', value)}>
+                <Select 
+                  value={form.watch('activity_visibility')} 
+                  onValueChange={(value: 'public' | 'private') => form.setValue('activity_visibility', value)}
+                >
                   <SelectTrigger>
                     <SelectValue />
                   </SelectTrigger>
@@ -324,7 +422,10 @@ export function PrivacyTab() {
                     Allow your profile to appear in search results
                   </p>
                 </div>
-                <Switch checked={form.watch('search_visibility')} onCheckedChange={checked => form.setValue('search_visibility', checked)} />
+                <Switch 
+                  checked={form.watch('search_visibility')} 
+                  onCheckedChange={checked => form.setValue('search_visibility', checked)} 
+                />
               </div>
             </CardContent>
           </Card>
@@ -358,5 +459,6 @@ export function PrivacyTab() {
           </Button>
         </div>
       </form>
-    </div>;
-}
\ No newline at end of file
+    </div>
+  );
+}
diff --git a/src/lib/privacyValidation.ts b/src/lib/privacyValidation.ts
new file mode 100644
index 00000000..1cfc05e1
--- /dev/null
+++ b/src/lib/privacyValidation.ts
@@ -0,0 +1,70 @@
+/**
+ * Privacy Settings Validation
+ * 
+ * Provides Zod schemas for runtime validation of privacy settings.
+ * 
+ * Usage:
+ * ```typescript
+ * const validated = privacyFormSchema.parse(userInput);
+ * ```
+ * 
+ * Security:
+ * - All user inputs must be validated before database writes
+ * - Prevents injection attacks and data corruption
+ * - Ensures data integrity with type-safe validation
+ */
+
+import { z } from 'zod';
+
+/**
+ * Schema for privacy settings in user_preferences
+ */
+export const privacySettingsSchema = z.object({
+  activity_visibility: z.enum(['public', 'private'], {
+    errorMap: () => ({ message: 'Activity visibility must be public or private' })
+  }),
+  search_visibility: z.boolean(),
+  show_location: z.boolean(),
+  show_age: z.boolean(),
+  show_avatar: z.boolean(),
+  show_bio: z.boolean(),
+  show_activity_stats: z.boolean(),
+  show_home_park: z.boolean()
+});
+
+/**
+ * Schema for profile privacy settings
+ */
+export const profilePrivacySchema = z.object({
+  privacy_level: z.enum(['public', 'private'], {
+    errorMap: () => ({ message: 'Privacy level must be public or private' })
+  }),
+  show_pronouns: z.boolean()
+});
+
+/**
+ * Combined schema for privacy form
+ */
+export const privacyFormSchema = privacySettingsSchema.merge(profilePrivacySchema);
+
+/**
+ * Schema for blocking a user
+ */
+export const blockUserSchema = z.object({
+  blocked_id: z.string().uuid('Invalid user ID'),
+  reason: z.string().max(500, 'Reason must be 500 characters or less').optional()
+});
+
+/**
+ * Default privacy settings for new users
+ */
+export const DEFAULT_PRIVACY_SETTINGS = {
+  activity_visibility: 'public' as const,
+  search_visibility: true,
+  show_location: false,
+  show_age: false,
+  show_avatar: true,
+  show_bio: true,
+  show_activity_stats: true,
+  show_home_park: false
+};
diff --git a/src/types/privacy.ts b/src/types/privacy.ts
new file mode 100644
index 00000000..8cf38487
--- /dev/null
+++ b/src/types/privacy.ts
@@ -0,0 +1,58 @@
+/**
+ * Privacy Types
+ * 
+ * Centralized type definitions for user privacy settings.
+ * 
+ * Storage:
+ * - ProfilePrivacySettings: stored in profiles table
+ * - PrivacySettings: stored in user_preferences.privacy_settings (JSONB)
+ * 
+ * Security:
+ * - All privacy settings are validated with Zod before database writes
+ * - Changes are logged to profile_audit_log for compliance
+ * - RLS policies ensure users can only modify their own settings
+ */
+
+/**
+ * Privacy settings stored in user_preferences.privacy_settings
+ */
+export interface PrivacySettings {
+  activity_visibility: 'public' | 'private';
+  search_visibility: boolean;
+  show_location: boolean;
+  show_age: boolean;
+  show_avatar: boolean;
+  show_bio: boolean;
+  show_activity_stats: boolean;
+  show_home_park: boolean;
+}
+
+/**
+ * Profile-level privacy settings
+ */
+export interface ProfilePrivacySettings {
+  privacy_level: 'public' | 'private';
+  show_pronouns: boolean;
+}
+
+/**
+ * Combined form data for privacy tab
+ */
+export interface PrivacyFormData extends ProfilePrivacySettings, PrivacySettings {}
+
+/**
+ * User block information
+ */
+export interface UserBlock {
+  id: string;
+  blocker_id: string;
+  blocked_id: string;
+  reason?: string;
+  created_at: string;
+  blocked_profile?: {
+    user_id: string;
+    username: string;
+    display_name?: string;
+    avatar_url?: string;
+  };
+}