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/payment/manual_pay.php

@@ -175,6 +175,7 @@
           aria-autocomplete="list"
           aria-haspopup="listbox"
           value="<?= esc($searchTermUsedInSearch ?? '') ?>">
+        <button class="btn btn-outline-secondary" type="button" id="manualPayClearSearch">Clear</button>
         <button class="btn btn-primary" type="submit">Search</button>
       </div>
       <div id="manualPaySuggest" class="list-group manual-pay-suggest d-none" role="listbox"></div>
@@ -1001,9 +1002,11 @@
     function initSearchSuggest() {
       const input = _el('manualPaySearchInput');
       const suggest = _el('manualPaySuggest');
+      const clear = _el('manualPayClearSearch');
       if (!input || !suggest) return;
 
       const suggestUrl = <?= json_encode(site_url('payment/manual_pay_suggest')) ?>;
+      const manualPayUrl = <?= json_encode(site_url('payment/manual_pay')) ?>;
       let lastRequest = 0;
 
       function hideSuggest() {
@@ -1089,6 +1092,14 @@
         if (e.key === 'Escape') hideSuggest();
       });
 
+      if (clear) {
+        clear.addEventListener('click', () => {
+          input.value = '';
+          hideSuggest();
+          window.location.href = manualPayUrl;
+        });
+      }
+
       document.addEventListener('click', (e) => {
         if (e.target === input || suggest.contains(e.target)) return;
         hideSuggest();