feat(wear): add DevBadge visible only in dev-profile builds

Small red 'DEV' tag in the top-right of CaseListScreen and RecordingScreen
when BuildConfig.IS_DEV_PROFILE is true. Production profiles render
nothing — Krey's UI stays clean.

refs #3

clients/wearos/app/src/main/java/com/doctate/watch/presentation/CaseListScreen.kt

@@ -30,6 +30,7 @@ import com.doctate.watch.DoctateApp
 import com.doctate.watch.domain.CaseEntry
 import com.doctate.watch.domain.displayText
 import com.doctate.watch.domain.isManual
+import com.doctate.watch.presentation.components.DevBadge
 
 @Composable
 fun CaseListScreen(
@@ -61,6 +62,11 @@ fun CaseListScreen(
         },
         edgeButtonSpacing = 4.dp,
     ) { contentPadding ->
+        DevBadge(
+            modifier = Modifier
+                .align(Alignment.TopEnd)
+                .padding(end = 4.dp, top = 2.dp),
+        )
         if (displayed.isEmpty()) {
             EmptyState(onNewCase)
         } else {

clients/wearos/app/src/main/java/com/doctate/watch/presentation/RecordingScreen.kt

@@ -26,6 +26,7 @@ import androidx.wear.compose.material3.EdgeButton
 import androidx.wear.compose.material3.MaterialTheme
 import androidx.wear.compose.material3.ScreenScaffold
 import androidx.wear.compose.material3.Text
+import com.doctate.watch.presentation.components.DevBadge
 
 @Composable
 fun RecordingScreen(
@@ -79,6 +80,11 @@ fun RecordingScreen(
     }
 
     ScreenScaffold { contentPadding ->
+        DevBadge(
+            modifier = Modifier
+                .align(Alignment.TopEnd)
+                .padding(end = 4.dp, top = 2.dp),
+        )
         Column(
             modifier = Modifier
                 .fillMaxSize()

clients/wearos/app/src/main/java/com/doctate/watch/presentation/components/DevBadge.kt

@@ -0,0 +1,26 @@
+package com.doctate.watch.presentation.components
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.wear.compose.material3.MaterialTheme
+import androidx.wear.compose.material3.Text
+import com.doctate.watch.BuildConfig
+
+@Composable
+fun DevBadge(modifier: Modifier = Modifier) {
+    if (!BuildConfig.IS_DEV_PROFILE) return
+    Text(
+        text = "DEV",
+        color = Color(0xFFFF5252),
+        style = MaterialTheme.typography.labelSmall.copy(fontWeight = FontWeight.Bold),
+        modifier = modifier
+            .background(Color.Black.copy(alpha = 0.6f), RoundedCornerShape(4.dp))
+            .padding(horizontal = 4.dp, vertical = 1.dp),
+    )
+}