Fix semester context, attendance rosters, and billing workflows

- load global semester helpers consistently and use date-based semester defaults
- fix grading and daily attendance duplicate student/section rows
- keep attendance violations scoped to the current semester by default
- update invoice, refund, discount, payment, and financial aid flows
- add configuration cleanup migrations for duplicate calendar/semester keys
- refresh parent registration/report-card and print request handling
- update related models, services, views, cron notes, and test coverage

app/Views/print_requests/teacher_index.php

@@ -1,11 +1,27 @@
 <?= $this->extend('layout/main_layout') ?>
 <?= $this->section('content') ?>
-<?php $isSchoolYearReadonly = (bool) ($isSchoolYearReadonly ?? false); ?>
+<?php
+$isSchoolYearReadonly = (bool) ($isSchoolYearReadonly ?? false);
+$successMessage = session()->getFlashdata('success');
+$errorMessage = session()->getFlashdata('error');
+?>
 
 <div class="container-fluid py-5">
     <div class="row">
         <div class="col-md-12">
             <h2>Print/Copy Requests</h2>
+            <?php if ($successMessage): ?>
+                <div class="alert alert-success alert-dismissible fade show" role="alert">
+                    <?= esc($successMessage) ?>
+                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                </div>
+            <?php endif; ?>
+            <?php if ($errorMessage): ?>
+                <div class="alert alert-danger alert-dismissible fade show" role="alert">
+                    <?= esc($errorMessage) ?>
+                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                </div>
+            <?php endif; ?>
             <?php if ($isSchoolYearReadonly): ?>
                 <div class="alert alert-warning">
                     This school year is read-only. Existing requests are visible, but changes are disabled.
@@ -46,6 +62,7 @@
                     <div class="tab-pane fade show active" id="tab-print" role="tabpanel" aria-labelledby="tab-print-tab">
                         <form action="<?= site_url('print-requests/create') ?>" method="post" enctype="multipart/form-data">
                             <?= csrf_field() ?>
+                            <input type="hidden" name="request_token" value="<?= esc($printRequestToken ?? '') ?>">
                             <?php if (session()->has('errors')): ?>
                                 <div class="alert alert-danger">
                                     <ul>
@@ -128,6 +145,7 @@
                         </div>
                         <form id="copyRequestForm" method="post" action="<?= site_url('print-requests/create-copy') ?>">
                             <?= csrf_field() ?>
+                            <input type="hidden" name="request_token" value="<?= esc($copyRequestToken ?? '') ?>">
                             <div class="row g-3">
                                 <div class="col-md-4">
                                     <label for="copy_num_copies" class="form-label">Number of Copies</label>
@@ -353,8 +371,14 @@ document.addEventListener('DOMContentLoaded', function() {
             const dateSelect = document.getElementById('required_by_date');
             const timeSelect = document.getElementById('required_by_time');
             const hiddenInput = document.getElementById('required_by');
+            const submitButton = createForm.querySelector('button[type="submit"]');
             if (dateSelect.value && timeSelect.value) {
                 hiddenInput.value = dateSelect.value + 'T' + timeSelect.value;
+                if (submitButton) {
+                    submitButton.disabled = true;
+                    submitButton.dataset.originalText = submitButton.textContent;
+                    submitButton.textContent = 'Submitting...';
+                }
             } else {
                 if (!dateSelect.value) {
                     alert('Please select a date.');
@@ -483,6 +507,7 @@ if (copyForm) {
         const dateSelect = document.getElementById('copy_required_by_date');
         const timeSelect = document.getElementById('copy_required_by_time');
         const hiddenInput = document.getElementById('copy_required_by');
+        const submitButton = copyForm.querySelector('button[type="submit"]');
         if (!dateSelect || !dateSelect.value) {
             alert('Please select a date for the copy request.');
             e.preventDefault();
@@ -496,6 +521,11 @@ if (copyForm) {
         if (hiddenInput) {
             hiddenInput.value = dateSelect.value + 'T' + timeSelect.value;
         }
+        if (submitButton) {
+            submitButton.disabled = true;
+            submitButton.dataset.originalText = submitButton.textContent;
+            submitButton.textContent = 'Submitting...';
+        }
     });
 }
 </script>