add @Tag to all controllers - numbered groups in Swagger UI

src/main/java/com/wallet/secure/audit/controller/AuditController.java

@@ -1,23 +1,20 @@
 package com.wallet.secure.audit.controller;
 
 import com.wallet.secure.audit.dto.AuditLogResponse;
-import com.wallet.secure.audit.entity.AuditLog;
 import com.wallet.secure.audit.repository.AuditLogRepository;
 import com.wallet.secure.common.enums.AuditAction;
 import com.wallet.secure.common.enums.LogSeverity;
 import com.wallet.secure.common.response.ApiResponse;
-import jakarta.validation.constraints.Size;
-import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.log4j.Log4j2;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
-import org.springframework.data.support.PageableExecutionUtils;
 import org.springframework.data.web.PageableDefault;
 import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 import java.time.Instant;
 import java.time.LocalDate;
@@ -55,6 +52,7 @@
 @RequestMapping("/audit")
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "7. Audit Logs", description = "Security audit trail — ADMIN only")
 @PreAuthorize("hasRole('ADMIN')")
 public class AuditController {
 

src/main/java/com/wallet/secure/auth/controller/AuthController.java

@@ -19,6 +19,7 @@
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 /**
  * REST Controller for authentication endpoints.
@@ -39,6 +40,7 @@
 @RequestMapping("/auth")
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "1. Authentication", description = "Register, login, logout and token refresh — public endpoints")
 public class AuthController {
 
     private final AuthService authService;

src/main/java/com/wallet/secure/auth/controller/SessionController.java

@@ -12,6 +12,7 @@
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.*;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 import java.util.List;
 import java.util.UUID;
@@ -48,6 +49,7 @@
 @RequestMapping("/sessions")
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "2. Sessions", description = "Multi-device session management — see and revoke active sessions")
 public class SessionController {
 
     private final SessionService sessionService;

src/main/java/com/wallet/secure/transaction/controller/TransactionController.java

@@ -19,6 +19,7 @@
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.*;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 import java.util.UUID;
 
@@ -47,6 +48,7 @@
 @RequestMapping("/transactions")
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "5. Transactions", description = "Deposit, withdraw and transfer funds between wallets")
 public class TransactionController {
 
     private final TransactionService transactionService;

src/main/java/com/wallet/secure/transaction/controller/TransactionHistoryController.java

@@ -12,6 +12,7 @@
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.*;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 import java.util.List;
 import java.util.UUID;
@@ -51,6 +52,7 @@
 @RestController
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "6. Transaction History", description = "Complete state timeline for each transaction — PENDING → PROCESSING → COMPLETED/FAILED")
 public class TransactionHistoryController {
 
     private final TransactionHistoryService historyService;

src/main/java/com/wallet/secure/user/controller/UserController.java

@@ -12,6 +12,7 @@
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.*;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 import java.util.UUID;
 
@@ -34,6 +35,7 @@
 @RequestMapping("/users")
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "3. Users", description = "User profile, password change and account management")
 public class UserController {
 
     private final UserService userService;

src/main/java/com/wallet/secure/wallet/controller/WalletController.java

@@ -14,6 +14,7 @@
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.*;
+import io.swagger.v3.oas.annotations.tags.Tag;
 
 import java.util.List;
 import java.util.UUID;
@@ -41,6 +42,7 @@
 @RequestMapping("/wallets")
 @RequiredArgsConstructor
 @Log4j2
+@Tag(name = "4. Wallets", description = "Create and manage multi-currency digital wallets")
 public class WalletController {
 
     private final WalletService walletService;