feat: Support user notifications preferences

backend/src/main/java/online/wesal/wesal/controller/AuthController.java

@@ -69,7 +69,7 @@ public class AuthController {
     }
     
     @PostMapping("/updateUser")
-    @Operation(summary = "Update user information", description = "Update authenticated user's fcmToken, displayName, avatar, password, or username")
+    @Operation(summary = "Update user information", description = "Update authenticated user's fcmToken, displayName, avatar, password, username, or subscriptions")
     public ResponseEntity<Map<String, Object>> updateUser(@Valid @RequestBody UpdateUserRequest request) {
         try {
             User user = userService.updateUser(
@@ -77,7 +77,8 @@ public class AuthController {
                 request.getDisplayName(),
                 request.getAvatar(),
                 request.getPassword(),
-                request.getUsername()
+                request.getUsername(),
+                request.getSubscriptions()
             );
             
             // Create user data without password
@@ -89,7 +90,8 @@ public class AuthController {
                 "avatar", user.getAvatar() != null ? user.getAvatar() : "",
                 "fcmToken", user.getFcmToken() != null ? user.getFcmToken() : "",
                 "activated", user.isActivated(),
-                "role", user.getRole()
+                "role", user.getRole(),
+                "subscriptions", user.getSubscriptions()
             );
             
             return ResponseEntity.ok(Map.of(

backend/src/main/java/online/wesal/wesal/dto/UpdateUserRequest.java

@@ -1,6 +1,7 @@
 package online.wesal.wesal.dto;
 
 import jakarta.validation.constraints.Size;
+import java.util.List;
 
 public class UpdateUserRequest {
     
@@ -15,6 +16,8 @@ public class UpdateUserRequest {
     @Size(min = 6, message = "Password must be at least 8 characters long")
     private String password;
     
+    private List<String> subscriptions;
+    
     public UpdateUserRequest() {}
     
     public String getFcmToken() {
@@ -56,4 +59,12 @@ public class UpdateUserRequest {
     public void setUsername(String username) {
         this.username = username;
     }
+    
+    public List<String> getSubscriptions() {
+        return subscriptions;
+    }
+    
+    public void setSubscriptions(List<String> subscriptions) {
+        this.subscriptions = subscriptions;
+    }
 }

backend/src/main/java/online/wesal/wesal/entity/User.java

@@ -4,6 +4,11 @@ import jakarta.persistence.*;
 import jakarta.validation.constraints.Email;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.Size;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.List;
+import java.util.Arrays;
 
 @Entity
 @Table(name = "users")
@@ -40,6 +45,9 @@ public class User {
     @Column(nullable = false)
     private String role = "USER";
     
+    @Column(columnDefinition = "TEXT")
+    private String subscriptions = "[\"newinvites\",\"invitesfollowup\",\"appnews\"]";
+    
     public User() {}
     
     public User(String email, String password, String displayName) {
@@ -119,4 +127,25 @@ public class User {
     public void setRole(String role) {
         this.role = role;
     }
+    
+    public List<String> getSubscriptions() {
+        if (subscriptions == null || subscriptions.isEmpty()) {
+            return Arrays.asList("newinvites", "invitesfollowup", "appnews");
+        }
+        try {
+            ObjectMapper mapper = new ObjectMapper();
+            return mapper.readValue(subscriptions, new TypeReference<List<String>>() {});
+        } catch (Exception e) {
+            return Arrays.asList("newinvites", "invitesfollowup", "appnews");
+        }
+    }
+    
+    public void setSubscriptions(List<String> subscriptions) {
+        try {
+            ObjectMapper mapper = new ObjectMapper();
+            this.subscriptions = mapper.writeValueAsString(subscriptions);
+        } catch (Exception e) {
+            this.subscriptions = "[\"newinvites\",\"invitesfollowup\",\"appnews\"]";
+        }
+    }
 }

backend/src/main/java/online/wesal/wesal/service/UserService.java

@@ -7,6 +7,7 @@ import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
+import java.util.List;
 
 @Service
 public class UserService {
@@ -56,7 +57,7 @@ public class UserService {
         return userRepository.save(user);
     }
     
-    public User updateUser(String fcmToken, String displayName, String avatar, String password, String username) {
+    public User updateUser(String fcmToken, String displayName, String avatar, String password, String username, List<String> subscriptions) {
         User user = getCurrentUser();
         boolean wasNotActivated = !user.isActivated();
         
@@ -86,6 +87,10 @@ public class UserService {
             user.setUsername(username);
         }
         
+        if (subscriptions != null && !subscriptions.isEmpty()) {
+            user.setSubscriptions(subscriptions);
+        }
+        
         User savedUser = userRepository.save(user);
         
         if (wasNotActivated) {