refactor(task-modal): remove unused timeblock data and streamline employee-specific timeblock handling

app/src/plugins/tm@modal/task/_components/_components/a-task-timeblocks.vue

@@ -106,7 +106,6 @@
           ref="employeeTimeblockRef"
           v-model="newTimeblock"
           :employee="employee"
-          :all-timeblocks="allTimeblocksForModal"
           :deletable="false"
           :index="0"
         />
@@ -233,11 +232,6 @@ export default {
         : this.HOUR_WIDTH;
     },
 
-    // All timeblocks for modal (includes existing timeblocks from this subtask)
-    allTimeblocksForModal() {
-      return this.timeblocks || [];
-    },
-
     // Computed property to trigger reactivity when existingTimeblocksData changes
     existingTimeblocksDataReactive() {
       // This forces Vue to track changes to existingTimeblocksData

app/src/plugins/tm@modal/task/_components/employees/a-employee.vue

@@ -17,7 +17,7 @@
         :model-value="timeblock"
         :employee="selectedEmployee"
         :all-employee-timeblocks="timeblocks"
-        :all-timeblocks="allTimeblocks"
+        :all-timeblocks="allTimeblocksForCurrentEmployee"
         :deleted-timeblock-ids="deletedTimeblockIds"
         :current-index="index"
         :deletable="timeblocks.length > 1"
@@ -94,6 +94,14 @@ const selectedEmployee = computed(() => {
   return employees.find((emp: any) => emp.id === props.employeeData.id) || null;
 });
 
+// Filter allTimeblocks to only include timeblocks for current employee
+const allTimeblocksForCurrentEmployee = computed(() => {
+  if (!props.employeeData.id) return [];
+  return props.allTimeblocks.filter(
+    (tb) => tb.employee_id === props.employeeData.id,
+  );
+});
+
 // Watch for when employee is selected and ensure at least one timeblock exists
 watch(
   () => props.employeeData.id,