Setup: Auto Scan Interval을 별도 화면(AUTO_SCAN_SETUP)으로 분리

사내 피드백: PiezoPersonalization 한 화면에 카드 3개를 모은 게 아니라
MaxCapacity 다음 단계로 Auto Scan Interval 화면을 독립적으로 띄우길 원함.

흐름 변경:
  before: DeviceScan → PiezoPersonalization (MaxCapacity + Catheter + AutoScan) → Placement
  after:  DeviceScan → PiezoPersonalization (MaxCapacity + Catheter) → AutoScanSetup → Placement

변경:
  - PiezoPersonalizationView 원복: 2카드 / verticalScroll 제거 / spacing 64dp 중앙 정렬
  - AutoScanIntervalSetupView 신규 — Bladdy hero + 큰 카드 + Continue 버튼
  - AppScreen.AUTO_SCAN_SETUP enum 추가
  - personalizationComplete() → AUTO_SCAN_SETUP으로 이동
  - autoScanSetupComplete() 신설 — PlacementGuide로 진행, piezoSettings persist
  - backFromPlacementGuide() — setup 흐름이면 AUTO_SCAN_SETUP으로 돌아감
  - MainActivity 라우팅 + Back handler 추가 (AUTO_SCAN_SETUP → PiezoPersonalization)

PiezoMonitoring의 in-monitoring settings 슬라이더는 그대로 유지 — 측정 중에도
같은 PiezoSettings.autoScanIntervalMs 값을 조정 가능.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/src/main/java/com/example/medilightv2android/AppState.kt

@@ -12,7 +12,8 @@ import com.example.medilightv2android.services.*
 
 enum class AppScreen {
     ONBOARDING, CONSENT, REGISTRATION, HOME, SENSOR_SELECT, DEVICE_SCAN,
-    NIRS_CALIBRATION, PIEZO_PERSONALIZATION, PLACEMENT_GUIDE, PIN_SETUP, PIN_ENTRY,
+    NIRS_CALIBRATION, PIEZO_PERSONALIZATION, AUTO_SCAN_SETUP,   // ★ MaxCapacity 다음 단계 — Auto Scan Interval 별도 화면
+    PLACEMENT_GUIDE, PIN_SETUP, PIN_ENTRY,
     VIVAMYO_MONITORING, PIEZO_MONITORING, MEASUREMENT_HISTORY,
     VOIDING_DIARY, URINE_CAMERA, REMINDER_SETTINGS,
     CLINICAL_HOME,      // ★ Dev 모드 한정 — 임상 R&D 측정 세션 화면 (입력 폼)
@@ -135,6 +136,13 @@ class AppState(private val context: Context) {
     fun personalizationComplete() {
         storage.piezoSettings = piezoSettings
         placementFromMonitoring = false
+        // MaxCapacity 화면 다음에 AutoScan Interval 설정 화면을 거쳐 Placement로 진행
+        currentScreen = AppScreen.AUTO_SCAN_SETUP
+    }
+
+    /** Auto Scan Interval 설정 화면 → Placement Guide */
+    fun autoScanSetupComplete() {
+        storage.piezoSettings = piezoSettings
         currentScreen = AppScreen.PLACEMENT_GUIDE
     }
 
@@ -161,7 +169,7 @@ class AppState(private val context: Context) {
 
     fun backFromPlacementGuide() {
         currentScreen = if (placementFromMonitoring) AppScreen.PIEZO_MONITORING
-                        else AppScreen.PIEZO_PERSONALIZATION
+                        else AppScreen.AUTO_SCAN_SETUP  // setup 흐름: Placement ← AutoScan ← MaxCapacity
         placementFromMonitoring = false
     }
 

app/src/main/java/com/example/medilightv2android/MainActivity.kt

@@ -32,6 +32,7 @@ import com.example.medilightv2android.ui.views.monitoring.VivamyoMonitoringView
 import com.example.medilightv2android.ui.views.monitoring.UrineCameraScreen
 import com.example.medilightv2android.ui.views.monitoring.VoidingDiaryView
 import com.example.medilightv2android.ui.views.onboarding.OnboardingView
+import com.example.medilightv2android.ui.views.personalization.AutoScanIntervalSetupView
 import com.example.medilightv2android.ui.views.personalization.PiezoPersonalizationView
 import com.example.medilightv2android.ui.views.pin.PinMode
 import com.example.medilightv2android.ui.views.pin.PinView
@@ -103,6 +104,7 @@ fun MedilightApp(modifier: Modifier = Modifier) {
                         AppScreen.CLINICAL_HOME
                     else AppScreen.HOME
             AppScreen.PIEZO_PERSONALIZATION -> appState.currentScreen = AppScreen.DEVICE_SCAN
+            AppScreen.AUTO_SCAN_SETUP -> appState.currentScreen = AppScreen.PIEZO_PERSONALIZATION
             // 임상 모드 측정 중이면 endMeasurement → ClinicalHome 복귀
             AppScreen.PLACEMENT_GUIDE ->
                 if (com.example.medilightv2android.services.ClinicalSessionStore.currentSession != null) {
@@ -152,6 +154,7 @@ fun MedilightApp(modifier: Modifier = Modifier) {
             AppScreen.DEVICE_SCAN -> DeviceScanView(appState)
             AppScreen.NIRS_CALIBRATION -> CalibrationView(appState)
             AppScreen.PIEZO_PERSONALIZATION -> PiezoPersonalizationView(appState)
+            AppScreen.AUTO_SCAN_SETUP -> AutoScanIntervalSetupView(appState)
             AppScreen.PLACEMENT_GUIDE -> PlacementGuideView(appState)
             AppScreen.PIN_SETUP -> PinView(appState, PinMode.SETUP, context)
             AppScreen.PIN_ENTRY -> PinView(appState, PinMode.ENTER, context)

app/src/main/java/com/example/medilightv2android/ui/views/personalization/AutoScanIntervalSetupView.kt

@@ -0,0 +1,175 @@
+package com.example.medilightv2android.ui.views.personalization
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Remove
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.min
+import androidx.compose.ui.unit.sp
+import com.example.medilightv2android.AppScreen
+import com.example.medilightv2android.AppState
+import com.example.medilightv2android.ui.components.BladdyIdleRiveView
+import com.example.medilightv2android.ui.theme.*
+import kotlin.math.roundToInt
+
+/**
+ * Auto Scan Interval 설정 화면.
+ *
+ * 흐름: PiezoPersonalization(MaxCapacity + CatheterThreshold)
+ *      → 본 화면 (Auto Scan Interval)
+ *      → PlacementGuide → PiezoMonitoring
+ *
+ * 600~5000ms 범위, 200ms 단위 snap. PiezoMonitoring의 in-monitoring settings에서
+ * 같은 슬라이더로 측정 중에도 조정 가능.
+ */
+@Composable
+fun AutoScanIntervalSetupView(appState: AppState) {
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(Color.White)
+    ) {
+        // Header
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 24.dp, vertical = 16.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            IconButton(onClick = { appState.currentScreen = AppScreen.PIEZO_PERSONALIZATION }) {
+                Icon(Icons.AutoMirrored.Filled.ArrowBack, "Back", tint = MlPrimary)
+            }
+        }
+
+        // Bladdy hero — Personalization과 동일 톤
+        BoxWithConstraints(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(vertical = 8.dp),
+            contentAlignment = Alignment.Center
+        ) {
+            val bladdySize = min(maxWidth, 220.dp)
+            BladdyIdleRiveView(size = bladdySize)
+        }
+
+        // 카드 영역 — 중앙 정렬
+        Column(
+            modifier = Modifier
+                .weight(1f)
+                .fillMaxWidth()
+                .padding(horizontal = 24.dp),
+            verticalArrangement = Arrangement.Center,
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            AutoScanIntervalCard(appState)
+        }
+
+        // Continue button
+        Button(
+            onClick = { appState.autoScanSetupComplete() },
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 32.dp)
+                .padding(bottom = 32.dp)
+                .height(56.dp),
+            shape = RoundedCornerShape(16.dp),
+            colors = ButtonDefaults.buttonColors(containerColor = Color.Transparent),
+            contentPadding = PaddingValues()
+        ) {
+            Box(
+                modifier = Modifier.fillMaxSize().background(
+                    Brush.horizontalGradient(listOf(MlTeal, MlPrimary)),
+                    RoundedCornerShape(16.dp)
+                ),
+                contentAlignment = Alignment.Center
+            ) {
+                Text("Continue", fontSize = 18.sp, fontWeight = FontWeight.SemiBold, color = Color.White)
+            }
+        }
+    }
+}
+
+@Composable
+private fun AutoScanIntervalCard(appState: AppState) {
+    Card(
+        modifier = Modifier.fillMaxWidth(),
+        shape = RoundedCornerShape(20.dp),
+        colors = CardDefaults.cardColors(containerColor = MlPrimary.copy(alpha = 0.06f))
+    ) {
+        Column(
+            modifier = Modifier.padding(horizontal = 20.dp, vertical = 24.dp),
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Text("Auto Scan Interval", fontSize = 34.sp, fontWeight = FontWeight.ExtraBold)
+
+            Spacer(modifier = Modifier.height(8.dp))
+            Text("Auto scan 사이클 간격 — 짧을수록 빠른 갱신, 길수록 안정",
+                fontSize = 13.sp, color = MlSecondaryText)
+
+            Spacer(modifier = Modifier.height(20.dp))
+
+            Row(verticalAlignment = Alignment.Bottom) {
+                Text("${appState.piezoSettings.autoScanIntervalMs}", fontSize = 64.sp,
+                    fontWeight = FontWeight.ExtraBold, color = MlPrimary)
+                Spacer(modifier = Modifier.width(8.dp))
+                Text("ms", fontSize = 24.sp, fontWeight = FontWeight.SemiBold, color = MlSecondaryText,
+                    modifier = Modifier.padding(bottom = 12.dp))
+            }
+
+            Spacer(modifier = Modifier.height(12.dp))
+
+            Row(horizontalArrangement = Arrangement.spacedBy(32.dp)) {
+                StepperButton(icon = Icons.Default.Remove) {
+                    val next = (appState.piezoSettings.autoScanIntervalMs - 200).coerceIn(600, 5000)
+                    appState.piezoSettings = appState.piezoSettings.copy(autoScanIntervalMs = next)
+                }
+                StepperButton(icon = Icons.Default.Add) {
+                    val next = (appState.piezoSettings.autoScanIntervalMs + 200).coerceIn(600, 5000)
+                    appState.piezoSettings = appState.piezoSettings.copy(autoScanIntervalMs = next)
+                }
+            }
+
+            Spacer(modifier = Modifier.height(12.dp))
+
+            Slider(
+                value = appState.piezoSettings.autoScanIntervalMs.toFloat(),
+                onValueChange = {
+                    val snapped = ((it / 200f).roundToInt() * 200).coerceIn(600, 5000)
+                    appState.piezoSettings = appState.piezoSettings.copy(autoScanIntervalMs = snapped)
+                },
+                valueRange = 600f..5000f,
+                steps = 21,
+                modifier = Modifier.padding(horizontal = 24.dp),
+                colors = SliderDefaults.colors(thumbColor = MlPrimary, activeTrackColor = MlPrimary)
+            )
+        }
+    }
+}
+
+@Composable
+private fun StepperButton(icon: androidx.compose.ui.graphics.vector.ImageVector, onClick: () -> Unit) {
+    Box(
+        modifier = Modifier
+            .size(56.dp)
+            .clip(CircleShape)
+            .background(MlPrimary)
+            .clickable(onClick = onClick),
+        contentAlignment = Alignment.Center
+    ) {
+        Icon(icon, null, tint = Color.White, modifier = Modifier.size(28.dp))
+    }
+}

app/src/main/java/com/example/medilightv2android/ui/views/personalization/PiezoPersonalizationView.kt

@@ -6,8 +6,6 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
@@ -68,21 +66,17 @@ fun PiezoPersonalizationView(appState: AppState) {
             BladdyIdleRiveView(size = bladdySize)
         }
 
-        // 카드 영역 — 3카드 스크롤 가능
+        // 카드 영역 — 수직 중앙 정렬
         Column(
             modifier = Modifier
                 .weight(1f)
                 .fillMaxWidth()
-                .verticalScroll(rememberScrollState())
                 .padding(horizontal = 24.dp),
-            verticalArrangement = Arrangement.spacedBy(24.dp),
+            verticalArrangement = Arrangement.spacedBy(64.dp, Alignment.CenterVertically),
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
-            Spacer(modifier = Modifier.height(8.dp))
             MaxVolumeCard(appState)
             CatheterThresholdCard(appState)
-            AutoScanIntervalCard(appState)
-            Spacer(modifier = Modifier.height(8.dp))
         }
 
         // Continue button
@@ -219,56 +213,6 @@ private fun CatheterThresholdCard(appState: AppState) {
     }
 }
 
-@Composable
-private fun AutoScanIntervalCard(appState: AppState) {
-    Card(
-        modifier = Modifier.fillMaxWidth(),
-        shape = RoundedCornerShape(20.dp),
-        colors = CardDefaults.cardColors(containerColor = MlPrimary.copy(alpha = 0.04f))
-    ) {
-        Column(
-            modifier = Modifier.padding(horizontal = 20.dp, vertical = 18.dp),
-            horizontalAlignment = Alignment.CenterHorizontally
-        ) {
-            Text("Auto Scan Interval", fontSize = 28.sp, fontWeight = FontWeight.ExtraBold)
-            Spacer(modifier = Modifier.height(8.dp))
-            Text("Auto scan 사이클 간격 (ms). 짧을수록 빠른 갱신, 길수록 안정.",
-                fontSize = 12.sp, color = MlSecondaryText)
-            Spacer(modifier = Modifier.height(12.dp))
-            Row(verticalAlignment = Alignment.Bottom) {
-                Text("${appState.piezoSettings.autoScanIntervalMs}", fontSize = 48.sp,
-                    fontWeight = FontWeight.ExtraBold, color = MlPrimary)
-                Spacer(modifier = Modifier.width(6.dp))
-                Text("ms", fontSize = 20.sp, fontWeight = FontWeight.SemiBold, color = MlSecondaryText,
-                    modifier = Modifier.padding(bottom = 8.dp))
-            }
-            Spacer(modifier = Modifier.height(8.dp))
-            Row(horizontalArrangement = Arrangement.spacedBy(32.dp)) {
-                StepperButton(icon = Icons.Default.Remove) {
-                    val next = (appState.piezoSettings.autoScanIntervalMs - 200).coerceIn(600, 5000)
-                    appState.piezoSettings = appState.piezoSettings.copy(autoScanIntervalMs = next)
-                }
-                StepperButton(icon = Icons.Default.Add) {
-                    val next = (appState.piezoSettings.autoScanIntervalMs + 200).coerceIn(600, 5000)
-                    appState.piezoSettings = appState.piezoSettings.copy(autoScanIntervalMs = next)
-                }
-            }
-            Spacer(modifier = Modifier.height(8.dp))
-            Slider(
-                value = appState.piezoSettings.autoScanIntervalMs.toFloat(),
-                onValueChange = {
-                    val snapped = ((it / 200f).roundToInt() * 200).coerceIn(600, 5000)
-                    appState.piezoSettings = appState.piezoSettings.copy(autoScanIntervalMs = snapped)
-                },
-                valueRange = 600f..5000f,
-                steps = 21,
-                modifier = Modifier.padding(horizontal = 24.dp),
-                colors = SliderDefaults.colors(thumbColor = MlPrimary, activeTrackColor = MlPrimary)
-            )
-        }
-    }
-}
-
 @Composable
 private fun StepperButton(icon: androidx.compose.ui.graphics.vector.ImageVector, onClick: () -> Unit) {
     Box(