auth to server-V5

app/src/main/java/com/example/login_v3/MainActivity.kt

@@ -31,7 +31,7 @@ class MainActivity : ComponentActivity() {
             val currentAppTheme by themeViewModel.currentTheme.collectAsState()
 
             Login_V3Theme(appTheme = currentAppTheme) {
-                Technologia()
+                HealthCheckScreen()
             }
         }
     }

app/src/main/java/com/example/login_v3/auth/HealthCheck_Screen.kt

@@ -1,10 +1,12 @@
 package com.example.login_v3.auth
 
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.example.login_v3.data.health.HealthCheckViewModel
@@ -27,17 +29,28 @@ fun HealthCheckScreen(
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
             //health
-            Text(text = "API Health", style = MaterialTheme.typography.titleLarge)
+            Text(
+                text = "API Health",
+                style = MaterialTheme.typography.titleLarge,
+                color = Color.Gray
+            )
 
             Spacer(modifier = Modifier.height(16.dp))
 
             // 顯示狀態
-            Text(text = "Status: $status", style = MaterialTheme.typography.bodyLarge)
+            Text(
+                text = "Status: $status",
+                style = MaterialTheme.typography.bodyLarge,
+                color = Color.Gray
+            )
 
             Spacer(modifier = Modifier.height(8.dp))
 
             // 顯示詳細訊息
-            Text(text = detail, style = MaterialTheme.typography.bodyMedium)
+            Text(text = detail,
+                style = MaterialTheme.typography.bodyMedium,
+                color = Color.Gray
+            )
 
             Spacer(modifier = Modifier.height(20.dp))
 
@@ -48,16 +61,23 @@ fun HealthCheckScreen(
             }
 
             Row {
-                Button(onClick = { viewModel.checkApiHealth() }) {
+                Button(
+                    onClick = { viewModel.checkApiHealth() },
+                    modifier = Modifier
+                        .background(color = Color.Gray)
+                ) {
                     Text("Check Health")
                 }
 
                 Spacer(modifier = Modifier.width(12.dp))
 
-                OutlinedButton(onClick = {
-                    // 若需要重置狀態，可在 ViewModel 加一個 reset 方法，或直接呼叫 repository 前先改狀態
-                }) {
-                    Text("Reset")
+                OutlinedButton(
+                    onClick = {}
+                ) {
+                    Text(
+                        text = "reset",
+                        color = Color.Gray
+                    )
                 }
             }
         }

app/src/main/java/com/example/login_v3/data/api/api_class/AuthRequest_Response.kt

@@ -1,12 +1,13 @@
 package com.example.login_v3.data.api.api_class
 
+import com.squareup.moshi.Json
 import com.squareup.moshi.JsonClass
-
+@JsonClass(generateAdapter = true)
 data class LoginRequest(
     val username: String,
     val password: String
 )
-
+@JsonClass(generateAdapter = true)
 data class LoginResponse(
     val token: String,
     val userId: String
@@ -14,7 +15,7 @@ data class LoginResponse(
 
 @JsonClass(generateAdapter = true)
 data class RegisterRequest(
-    val display_name: String,
+    @Json(name = "display_name") val displayName: String, // 將 JSON 的底線對應到 Kotlin 的駝峰
     val email: String,
     val password: String,
     val username: String

app/src/main/java/com/example/login_v3/data/api/api_class/FriendRequest.kt

@@ -1,9 +1,12 @@
 package com.example.login_v3.data.api.api_class
 
+import com.squareup.moshi.JsonClass
+
+@JsonClass(generateAdapter = true)
 data class FriendRequest(
     val friendId: String
 )
-
+@JsonClass(generateAdapter = true)
 data class ApiResponse(
     val success: Boolean,
     val message: String