通过AI比对原操作文档，生成系统功能完善方案，根据方案进行增补，完善从学期新增到最终的排课功能

frontend/src/views/teachBusiness/calendar/components/SchoolCalendarEditor.vue

@@ -442,6 +442,10 @@ export default {
     cellClass(wIdx, col) {
       const classes = []
       if (this.selectedKeys.includes(this.cellKey(wIdx, col.colIndex))) classes.push('is-selected')
+      // 班历：班次日期范围外的格子不可排，给出明确视觉提示
+      if (this.mode === 'class' && this.isOutOfRange(wIdx, col.dayIndex)) {
+        classes.push('is-out-of-range')
+      }
       const ev = this.getEvent(wIdx, col.colIndex)
       // 可排课的全部白色；不可排课且事件名非空才标红
       if (ev && ev.name && !ev.schedulable) {
@@ -449,6 +453,30 @@ export default {
       }
       return classes
     },
+    // 时间格对应的实际日期
+    cellDate(wIdx, dayIndex) {
+      if (!this.calendarStart) return null
+      const d = new Date(this.calendarStart)
+      d.setDate(this.calendarStart.getDate() + wIdx * 7 + dayIndex)
+      return d
+    },
+    // 班历只有 [开学日期, 结束日期] 内的格子会落库，范围外的格子无法保存
+    isOutOfRange(wIdx, dayIndex) {
+      if (!this.startDate || !this.endDate) return false
+      const d = this.cellDate(wIdx, dayIndex)
+      if (!d) return false
+      const at = v => new Date(v.getFullYear(), v.getMonth(), v.getDate()).getTime()
+      return at(d) < at(this.startDate) || at(d) > at(this.endDate)
+    },
+    // 返回所选时间格里落在班次日期范围外的格子数
+    countOutOfRangeSelected() {
+      let n = 0
+      this.selectedKeys.forEach(key => {
+        const pos = this.parseCellKey(key)
+        if (pos && this.isOutOfRange(pos.wIdx, pos.dayIndex)) n++
+      })
+      return n
+    },
     /* ---------- 点击 / 拖拽多选 ---------- */
     onGridMouseDown(e) {
       const cell = e.target.closest('.sce-cell')
@@ -548,6 +576,14 @@ export default {
         this.$message.warning('请输入事件名')
         return
       }
+      // 班历只在班次日期范围内落库，范围外的格子直接提示，避免落成含糊的“保存失败”
+      if (this.mode === 'class') {
+        const outside = this.countOutOfRangeSelected()
+        if (outside > 0) {
+          this.$message.warning(`所选 ${outside} 个时间格在班次日期范围外，不可排课`)
+          return
+        }
+      }
       const keys = [...this.selectedKeys]
       keys.forEach(key => {
         const prev = this.events[key]
@@ -876,6 +912,14 @@ export default {
       // 可排课白色，不可排课且有事件标红
       &.no-schedule { background: #fde2e2; }
 
+      // 班历：班次日期范围外的格子不可排
+      &.is-out-of-range {
+        background: #f4f4f5;
+        cursor: not-allowed;
+
+        .sce-date-num { color: #dcdfe6; }
+      }
+
       &.is-selected {
         outline: 2px solid var(--edu-green-primary, #00875a);
         outline-offset: -2px;