feat: 남은 연차 표시 및 달력 UI 개선 (넓은 화면, 큰 근무 표시)

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

@@ -99,7 +99,7 @@ class CalendarAdapter(
         holder.shiftChar.background = null
         holder.shiftChar.text = ""
         holder.holidayNameSmall.visibility = View.GONE
-        holder.shiftChar.textSize = 13f
+        holder.shiftChar.textSize = 15f
 
         // "반월", "반년" (Half-Monthly, Half-Yearly) Special Logic
         // These are overrides or specific shifts that user sets.
@@ -111,7 +111,7 @@ class CalendarAdapter(
             // Holiday Mode (Priority): Show full holiday name, no circle
             holder.shiftChar.text = fullHolidayName
             holder.shiftChar.setTextColor(Color.parseColor("#FF5252"))
-            holder.shiftChar.textSize = 10f
+                holder.shiftChar.textSize = 11f
             holder.shiftChar.background = null
         } else if (item.shift != null && item.shift != "비번") {
             // Shift Mode
@@ -120,7 +120,7 @@ class CalendarAdapter(
             if (item.shift == "반월" || item.shift == "반년") {
                  holder.shiftChar.text = if (item.shift == "반월") "월" else "년"
                  holder.shiftChar.setTextColor(ContextCompat.getColor(context, R.color.black)) // Black for contrast on Half Red/Transparent
-                 holder.shiftChar.textSize = 13f
+                 holder.shiftChar.textSize = 15f
                  holder.shiftChar.background = ContextCompat.getDrawable(context, R.drawable.bg_shift_half_red)
             } else {
                 // Standard Logic
@@ -137,7 +137,7 @@ class CalendarAdapter(
                     else -> item.shift.take(1)
                 }
                 holder.shiftChar.text = shiftAbbreviation
-                holder.shiftChar.textSize = 15f
+                holder.shiftChar.textSize = 17f
                 holder.shiftChar.setTypeface(null, android.graphics.Typeface.BOLD)
 
                 val shiftColorRes = when (item.shift) {
@@ -205,7 +205,7 @@ class CalendarAdapter(
              // holder.holidayNameSmall.text = HolidayManager.getLunarDateString(item.date)
              
              holder.shiftChar.text = HolidayManager.getLunarDateString(item.date)
-             holder.shiftChar.textSize = 10f
+             holder.shiftChar.textSize = 11f
              holder.shiftChar.setTextColor(ContextCompat.getColor(context, R.color.text_tertiary))
              holder.shiftChar.background = null
         }

app/src/main/res/layout/activity_main.xml

@@ -58,12 +58,12 @@
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 
-    <!-- Maximized Calendar Card -->
+    <!-- Maximized Calendar Card - Reduced margins for wider calendar -->
     <androidx.cardview.widget.CardView
         android:id="@+id/calendarCard"
         android:layout_width="0dp"
         android:layout_height="0dp"
-        android:layout_marginHorizontal="12dp"
+        android:layout_marginHorizontal="4dp"
         android:layout_marginBottom="8dp"
         app:cardCornerRadius="28dp"
         app:cardElevation="0dp"
@@ -160,7 +160,20 @@
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent"
                     app:layout_constraintBottom_toBottomOf="parent"
-                    app:layout_constraintEnd_toStartOf="@id/btnTideLocation"/>
+                    app:layout_constraintEnd_toStartOf="@id/tvAnnualLeave"/>
+
+                <TextView
+                    android:id="@+id/tvAnnualLeave"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="연차: 0.0"
+                    android:textSize="12sp"
+                    android:textStyle="bold"
+                    android:textColor="@color/primary"
+                    android:layout_marginEnd="8dp"
+                    app:layout_constraintEnd_toStartOf="@id/btnTideLocation"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintBottom_toBottomOf="parent"/>
 
                 <androidx.appcompat.widget.AppCompatButton
                     android:id="@+id/btnTideLocation"
@@ -227,7 +240,7 @@
         android:id="@+id/otherTeamsCard"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginHorizontal="12dp"
+        android:layout_marginHorizontal="4dp"
         android:layout_marginBottom="16dp"
         app:cardCornerRadius="20dp"
         app:cardElevation="0dp"
@@ -261,5 +274,4 @@
         </LinearLayout>
     </androidx.cardview.widget.CardView>
 
-
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_day.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/dayRoot"
     android:layout_width="match_parent"
-    android:layout_height="92dp"
+    android:layout_height="108dp"
     android:background="@drawable/bg_grid_cell_v4">
 
     <!-- Day Number (top-left) -->
@@ -16,7 +16,7 @@
         android:layout_marginTop="4dp"
         android:text="12"
         android:textColor="@color/text_primary"
-        android:textSize="14sp"
+        android:textSize="15sp"
         android:textStyle="bold"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
@@ -35,21 +35,21 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-    <!-- Shift Abbreviation Circular Indicator (Center) -->
+    <!-- Shift Abbreviation Circular Indicator (Center) - Larger size -->
     <TextView
         android:id="@+id/shiftChar"
-        android:layout_width="40dp"
+        android:layout_width="48dp"
-        android:layout_height="40dp"
+        android:layout_height="48dp"
         android:gravity="center"
         android:text="주"
-        android:textSize="15sp"
+        android:textSize="17sp"
         android:textStyle="bold"
         android:textColor="@color/text_primary"
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent" 
-        app:layout_constraintVertical_bias="0.45"/>
+        app:layout_constraintVertical_bias="0.42"/>
 
     <!-- Memo Content Text (Below Shift) - Replacing icon logic for visibility -->
     <TextView