add refund logic and fix books inventory logic

app/Views/school_years/index.php

@@ -93,6 +93,12 @@
                         required
                     >
                 </div>
+                <div class="col-md-3">
+                    <label class="form-label" for="new_total_instructional_weeks">Instructional Weeks</label>
+                    <input class="form-control" id="new_total_instructional_weeks" name="total_instructional_weeks" type="number" min="1" step="1" required>
+                    <input type="hidden" name="annual_fee_includes_books" value="1">
+                    <input type="hidden" name="withdrawal_policy_version" value="studied_weeks_v1">
+                </div>
                 <div class="col-md-3 d-flex gap-2">
                     <button class="btn btn-primary" type="submit">Save Draft</button>
                     <button class="btn btn-secondary" type="button" data-bs-toggle="collapse" data-bs-target="#schoolYearCreateForm">Cancel</button>
@@ -320,6 +326,12 @@
                                 <label class="form-label" for="fall_makeup_exam_on_<?= $id ?>">Fall Makeup Exam</label>
                                 <input class="form-control" id="fall_makeup_exam_on_<?= $id ?>" name="fall_makeup_exam_on" type="date" value="<?= esc($year['fall_makeup_exam_on'] ?? '') ?>">
                             </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label" for="total_instructional_weeks_<?= $id ?>">Instructional Weeks</label>
+                                <input class="form-control" id="total_instructional_weeks_<?= $id ?>" name="total_instructional_weeks" type="number" min="1" step="1" value="<?= esc($totalInstructionalWeeks ?? '') ?>" required>
+                                <input type="hidden" name="annual_fee_includes_books" value="1">
+                                <input type="hidden" name="withdrawal_policy_version" value="<?= esc($year['withdrawal_policy_version'] ?? 'studied_weeks_v1') ?>">
+                            </div>
                         </div>
                         <label class="form-label" for="description_<?= $id ?>">Description</label>
                         <textarea class="form-control" id="description_<?= $id ?>" name="description" rows="3"><?= esc($year['description'] ?? '') ?></textarea>