feat: Add Profile Logs Screen and integrate logging functionality

- Introduced ProfileLogsScreen for displaying logs related to profile operations.
- Enhanced MainScreen to include navigation to the new logs screen.
- Updated ProfileViewModel to manage logs and handle profile save operations.
- Implemented back navigation and log clearing functionality in ProfileLogsScreen.
- Improved SafetyScreen and ThemeScreen with back gesture handling.
- Refactored BackupScreen and OtherProfileScreen for consistency and better UX.
- Adjusted UI elements for better visibility and interaction feedback.

app/src/main/java/com/rosetta/messenger/MainActivity.kt

@@ -452,6 +452,11 @@ fun MainScreen(
     var showThemeScreen by remember { mutableStateOf(false) }
     var showSafetyScreen by remember { mutableStateOf(false) }
     var showBackupScreen by remember { mutableStateOf(false) }
+    var showLogsScreen by remember { mutableStateOf(false) }
+    
+    // ProfileViewModel для логов
+    val profileViewModel: com.rosetta.messenger.ui.settings.ProfileViewModel = androidx.lifecycle.viewmodel.compose.viewModel()
+    val profileState by profileViewModel.state.collectAsState()
 
     // 🔥 Простая навигация с fade-in анимацией
     Box(modifier = Modifier.fillMaxSize()) {
@@ -459,7 +464,7 @@ fun MainScreen(
         androidx.compose.animation.AnimatedVisibility(
             visible = !showBackupScreen && !showSafetyScreen && !showThemeScreen && 
                      !showUpdatesScreen && selectedUser == null && !showSearchScreen && 
-                     !showProfileScreen && !showOtherProfileScreen,
+                     !showProfileScreen && !showOtherProfileScreen && !showLogsScreen,
             enter = fadeIn(animationSpec = tween(300)),
             exit = fadeOut(animationSpec = tween(200))
         ) {
@@ -516,7 +521,10 @@ fun MainScreen(
             if (showBackupScreen) {
                 BackupScreen(
                     isDarkTheme = isDarkTheme,
-                    onBack = { showBackupScreen = false },
+                    onBack = { 
+                        showBackupScreen = false
+                        showSafetyScreen = true
+                    },
                     onVerifyPassword = { password ->
                         // TODO: Implement password verification
                         if (password == "test") {
@@ -536,8 +544,15 @@ fun MainScreen(
                 SafetyScreen(
                     isDarkTheme = isDarkTheme,
                     accountPublicKey = accountPublicKey,
-                    onBack = { showSafetyScreen = false },
-                    onBackupClick = { showBackupScreen = true },
+                    accountPrivateKey = accountPrivateKey,
+                    onBack = { 
+                        showSafetyScreen = false
+                        showProfileScreen = true
+                    },
+                    onBackupClick = { 
+                        showSafetyScreen = false
+                        showBackupScreen = true 
+                    },
                     onDeleteAccount = {
                         // TODO: Implement account deletion
                         Log.d("MainActivity", "Delete account requested")
@@ -554,7 +569,10 @@ fun MainScreen(
             if (showThemeScreen) {
                 ThemeScreen(
                     isDarkTheme = isDarkTheme,
-                    onBack = { showThemeScreen = false },
+                    onBack = { 
+                        showThemeScreen = false
+                        showProfileScreen = true
+                    },
                     onThemeChange = { isDark ->
                         onToggleTheme()
                     }
@@ -644,10 +662,11 @@ fun MainScreen(
                         accountName = accountName,
                         accountUsername = "", // TODO: Get from account
                         accountPublicKey = accountPublicKey,
+                        accountPrivateKeyHash = privateKeyHash,
                         onBack = { showProfileScreen = false },
                         onSaveProfile = { name, username ->
-                            // TODO: Save profile changes
-                            Log.d("MainActivity", "Saving profile: name=$name, username=$username")
+                            // Profile saved via ViewModel
+                            Log.d("MainActivity", "Profile saved: name=$name, username=$username")
                         },
                         onLogout = onLogout,
                         onNavigateToTheme = {
@@ -657,7 +676,32 @@ fun MainScreen(
                         onNavigateToSafety = {
                             showProfileScreen = false
                             showSafetyScreen = true
-                        }
+                        },
+                        onNavigateToLogs = {
+                            showProfileScreen = false
+                            showLogsScreen = true
+                        },
+                        viewModel = profileViewModel
+                )
+            }
+        }
+
+        androidx.compose.animation.AnimatedVisibility(
+            visible = showLogsScreen,
+            enter = fadeIn(animationSpec = tween(300)),
+            exit = fadeOut(animationSpec = tween(200))
+        ) {
+            if (showLogsScreen) {
+                com.rosetta.messenger.ui.settings.ProfileLogsScreen(
+                    isDarkTheme = isDarkTheme,
+                    logs = profileState.logs,
+                    onBack = { 
+                        showLogsScreen = false
+                        showProfileScreen = true
+                    },
+                    onClearLogs = {
+                        profileViewModel.clearLogs()
+                    }
                 )
             }
         }