perf(ui): defer translationY and alpha to graphicsLayer draw phase during animations

core/src/main/kotlin/plus/rua/project/ui/CalendarMonthPage.kt

@@ -15,8 +15,7 @@ import androidx.compose.runtime.produceState
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clipToBounds
-import androidx.compose.ui.draw.alpha
-import androidx.compose.foundation.layout.offset
+import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.unit.dp
@@ -216,8 +215,10 @@ private fun WeekRow(
                     if (isAnchor && phase1 >= 1f) Modifier.background(MaterialTheme.colorScheme.surface)
                     else Modifier
                 )
-                .offset(y = with(density) { yOffsetPx.toDp() })
-                .alpha(rowAlpha)
+                .graphicsLayer {
+                    translationY = yOffsetPx
+                    alpha = rowAlpha
+                }
                 .then(
                     if (weekIndex == 0 && rowHeightPx == 0) {
                         Modifier.onSizeChanged { size ->

core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt

@@ -720,9 +720,10 @@ private fun BottomCardArea(
                 composeTraceEndSection()
             },
             dragRangePx = dragRangePx,
-            modifier = modifier
-                .offset(y = with(density) { (slideProgress * 300).dp })
-                .alpha(1f - slideProgress)
+            modifier = modifier.graphicsLayer {
+                translationY = (slideProgress * 300).dp.toPx()
+                alpha = 1f - slideProgress
+            }
         )
     }
 }