fix(dashboard): render verificado en dispositivo EMUI

- Header reestructurado: en el Huawei de prueba el Row con Alignment.Bottom
  + SpaceBetween medía ~270dp fantasma, aplastando la lista de hábitos a
  altura 0 (las tarjetas ni se componían). Ahora es columna simple con
  chips en fila propia y maxLines acotados.
- LazyColumn con weight(1f) en vez de fillMaxSize dentro de Column sin peso.
- Singular '1 día de racha' / '1 día' (antes '1 días').

app/app/src/main/java/mx/paputec/rachita/ui/dashboard/DashboardScreen.kt

@@ -9,6 +9,7 @@ import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.safeDrawing
 import androidx.compose.foundation.layout.size
@@ -100,39 +101,41 @@ private fun CenterColumn(
     onToggleHabit: (String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
-    Column(modifier = modifier, verticalArrangement = Arrangement.spacedBy(12.dp)) {
-        Row(
-            modifier = Modifier.fillMaxWidth(),
-            verticalAlignment = Alignment.Bottom,
-            horizontalArrangement = Arrangement.SpaceBetween,
-        ) {
-            Column {
+    // Header laid out as a plain top-anchored column with height-bounded rows.
+    // On the EMUI test device the previous Bottom-aligned SpaceBetween header
+    // measured ~270 dp tall (giant invisible text box), crushing the habit list
+    // to zero height — see STATUS.md session 2.
+    val pendingText = when (uiState.pendingCount) {
+        0 -> stringResource(R.string.dashboard_pending_zero)
+        1 -> stringResource(R.string.dashboard_pending_one)
+        else -> stringResource(R.string.dashboard_pending_many, uiState.pendingCount)
+    }
+    Column(modifier = modifier, verticalArrangement = Arrangement.spacedBy(10.dp)) {
         Text(
             text = stringResource(R.string.dashboard_greeting, uiState.childName),
             style = MaterialTheme.typography.headlineMedium,
+            maxLines = 1,
         )
-                Row(
-                    verticalAlignment = Alignment.CenterVertically,
-                    horizontalArrangement = Arrangement.spacedBy(10.dp),
-                ) {
         Text(
-                        text = "${uiState.dateLine} · ${pendingLine(uiState.pendingCount)}",
+            text = "${uiState.dateLine} · $pendingText",
             style = MaterialTheme.typography.bodyMedium.copy(color = WarmGreyDeep),
+            maxLines = 2,
         )
-                    BackgroundChip()
-                }
-            }
         Row(
+            modifier = Modifier.fillMaxWidth(),
             verticalAlignment = Alignment.CenterVertically,
             horizontalArrangement = Arrangement.spacedBy(8.dp),
         ) {
+            BackgroundChip()
+            Spacer(modifier = Modifier.weight(1f))
             uiState.battery?.let { BatteryChip(it) }
             TodayCounterPill(done = uiState.doneCount, total = uiState.totalCount)
         }
-        }
 
         LazyColumn(
-            modifier = Modifier.fillMaxSize(),
+            modifier = Modifier
+                .fillMaxWidth()
+                .weight(1f),
             verticalArrangement = Arrangement.spacedBy(12.dp),
         ) {
             items(count = uiState.habits.size, key = { uiState.habits[it].id }) { index ->
@@ -143,13 +146,6 @@ private fun CenterColumn(
     }
 }
 
-@Composable
-private fun pendingLine(pending: Int): String = when (pending) {
-    0 -> stringResource(R.string.dashboard_pending_zero)
-    1 -> stringResource(R.string.dashboard_pending_one)
-    else -> stringResource(R.string.dashboard_pending_many, pending)
-}
-
 @Composable
 private fun BackgroundChip() {
     Row(

app/app/src/main/java/mx/paputec/rachita/ui/dashboard/components/RightColumn.kt

@@ -96,7 +96,11 @@ private fun StreakCard(streak: Int, week: List<WeekDayUi>, securedToday: Boolean
             style = MaterialTheme.typography.displaySmall.copy(color = CoralIntense),
         )
         Text(
-            text = stringResource(R.string.dashboard_streak_days),
+            text = if (streak == 1) {
+                stringResource(R.string.dashboard_streak_day_singular)
+            } else {
+                stringResource(R.string.dashboard_streak_days)
+            },
             style = MaterialTheme.typography.bodyMedium.copy(color = WarmGreyDeep),
         )
         WeekRow(week = week)

app/app/src/main/java/mx/paputec/rachita/ui/dashboard/components/Sidebar.kt

@@ -151,7 +151,11 @@ private fun StreakRow(streak: Int) {
     ) {
         StreakFlame(modifier = Modifier.size(26.dp, 32.dp))
         Text(
-            text = stringResource(R.string.dashboard_streak_sidebar, streak),
+            text = if (streak == 1) {
+                stringResource(R.string.dashboard_streak_sidebar_singular)
+            } else {
+                stringResource(R.string.dashboard_streak_sidebar, streak)
+            },
             style = MaterialTheme.typography.labelLarge.copy(color = CoralIntense),
         )
     }

app/app/src/main/res/values/strings.xml

@@ -33,7 +33,9 @@
     <string name="dashboard_done_badge">¡Hecho!</string>
     <string name="dashboard_streak_title">Tu racha</string>
     <string name="dashboard_streak_days">días</string>
+    <string name="dashboard_streak_day_singular">día</string>
     <string name="dashboard_streak_sidebar">%1$d días de racha</string>
+    <string name="dashboard_streak_sidebar_singular">1 día de racha</string>
     <string name="dashboard_streak_secured">¡Racha asegurada hoy! 🔥</string>
     <string name="dashboard_level_badge">Nv. %1$d</string>
     <string name="dashboard_level_title">Nivel %1$d</string>