feat: Implement privacy preferences for users and agents with new database field, service methods, and API endpoints.

src/users/users.service.ts

@@ -441,4 +441,48 @@ export class UsersService {
 
     return updatedUser.notificationPreferences;
   }
+
+  // =============================================
+  // PRIVACY PREFERENCES
+  // =============================================
+
+  async getPrivacyPreferences(userId: string) {
+    const user = await this.prisma.user.findUnique({
+      where: { id: userId },
+      select: { privacyPreferences: true },
+    });
+
+    if (!user) {
+      throw new NotFoundException('User not found');
+    }
+
+    // Return preferences or default empty object
+    return user.privacyPreferences || { privacySettings: {}, dataSettings: {} };
+  }
+
+  async updatePrivacyPreferences(
+    userId: string,
+    preferences: {
+      privacySettings?: Record<string, string>;
+      dataSettings?: Record<string, boolean>;
+    },
+  ) {
+    const user = await this.prisma.user.findUnique({
+      where: { id: userId },
+    });
+
+    if (!user) {
+      throw new NotFoundException('User not found');
+    }
+
+    const updatedUser = await this.prisma.user.update({
+      where: { id: userId },
+      data: {
+        privacyPreferences: preferences,
+      },
+      select: { privacyPreferences: true },
+    });
+
+    return updatedUser.privacyPreferences;
+  }
 }