feat: 달력 5행 동적 높이 조정 및 연차 메인 화면 연동

- 달력 5행일 때 아이템 높이를 동적으로 계산하여 화면 꽉 채우기
- 메인 화면 tvAnnualLeave에 남은 연차 표시 기능 추가
- onResume에서 연차 정보 자동 업데이트

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

app/src/main/java/com/example/shiftalarm/CalendarAdapter.kt

@@ -13,18 +13,18 @@ import androidx.recyclerview.widget.RecyclerView
 import java.time.LocalDate
 
 data class DayShift(
-    val date: LocalDate?, 
-    val shift: String?, 
-    val hasMemo: Boolean = false,
-    val memoContent: String? = null
+ val date: LocalDate?,
+ val shift: String?,
+ val hasMemo: Boolean = false,
+ val memoContent: String? = null
 )
 
 class CalendarAdapter(
-    var days: List<DayShift>,
-    private val listener: OnDayClickListener,
-    var showHolidays: Boolean = true
+ var days: List<DayShift>,
+ private val listener: OnDayClickListener,
+ var showHolidays: Boolean = true,
+ private val rowCount: Int = 6 // Default to 6 rows
 ) : RecyclerView.Adapter<CalendarAdapter.ViewHolder>() {
-
     interface OnDayClickListener {
         fun onDayClick(date: LocalDate, currentShift: String)
     }
@@ -48,18 +48,32 @@ class CalendarAdapter(
         return (dp * context.resources.displayMetrics.density).toInt()
     }
 
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        val item = days[position]
-        val context = holder.itemView.context
-        
-        if (item.date == null) {
-            holder.itemView.visibility = View.INVISIBLE
-            return
-        }
-        
-        holder.itemView.visibility = View.VISIBLE
-        
-        // Day Number
+ override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+ val item = days[position]
+ val context = holder.itemView.context
+
+ // Dynamically adjust item height based on row count (5 or 6 rows)
+ val displayMetrics = context.resources.displayMetrics
+ val screenWidth = displayMetrics.widthPixels
+ val itemWidth = screenWidth / 7 // Each cell width
+ val itemHeight = if (rowCount == 5) {
+ (itemWidth * 1.2).toInt() // Taller items for 5 rows to fill space
+ } else {
+ itemWidth // Square items for 6 rows
+ }
+
+ val layoutParams = holder.itemView.layoutParams
+ layoutParams.height = itemHeight
+ holder.itemView.layoutParams = layoutParams
+
+ if (item.date == null) {
+ holder.itemView.visibility = View.INVISIBLE
+ return
+ }
+
+ holder.itemView.visibility = View.VISIBLE
+
+ // Day Number
         holder.dayNumber.text = item.date.dayOfMonth.toString()
         
         // Holiday / Weekend logic