Refactor profile screen and organize project structure

- Extract ProfileScreen and components to features/profile
- Move shared hooks and stores to top-level
- Add RLS policies for admin permissions
- Add RELEASING.md guide
- Update .gitignore

apps/mobile/src/features/profile/components/PrivacySettings.tsx

@@ -0,0 +1,61 @@
+import React from 'react';
+import { View, StyleSheet } from 'react-native';
+import { SettingsSection } from './SettingsSection';
+import { SwitchItem } from './SwitchItem';
+import { colors, spacing } from '../../../theme';
+
+interface PrivacySettingsProps {
+    showExplicit: boolean;
+    isUpdatingExplicit: boolean;
+    onExplicitToggle: (value: boolean) => void;
+    biometricAvailable: boolean;
+    biometricEnabled: boolean;
+    biometricType: string;
+    isUpdatingBiometric: boolean;
+    onBiometricToggle: (value: boolean) => void;
+}
+
+export const PrivacySettings: React.FC<PrivacySettingsProps> = ({
+    showExplicit,
+    isUpdatingExplicit,
+    onExplicitToggle,
+    biometricAvailable,
+    biometricEnabled,
+    biometricType,
+    isUpdatingBiometric,
+    onBiometricToggle,
+}) => {
+    return (
+        <SettingsSection title="Preferences" delay={375}>
+            <SwitchItem
+                icon="flame"
+                label="Spicy Content"
+                description="Show spicy question packs"
+                value={showExplicit}
+                onValueChange={onExplicitToggle}
+                disabled={isUpdatingExplicit}
+            />
+            {biometricAvailable && (
+                <>
+                    <View style={styles.divider} />
+                    <SwitchItem
+                        icon={biometricType === "Face ID" || biometricType === "Face Recognition" ? "scan-outline" : "finger-print-outline"}
+                        label={biometricType}
+                        description="Require unlock when opening app"
+                        value={biometricEnabled}
+                        onValueChange={onBiometricToggle}
+                        disabled={isUpdatingBiometric}
+                    />
+                </>
+            )}
+        </SettingsSection>
+    );
+};
+
+const styles = StyleSheet.create({
+    divider: {
+        height: 1,
+        backgroundColor: colors.glass.border,
+        marginVertical: spacing.md,
+    },
+});