Fix: Disable auto-generation of discharge templates + add manual creation button

ISSUE: Templates auto-regenerate when deleted
User deletes template ID 3, page reload creates template ID 4 automatically

ROOT CAUSE: ensureDefaultDischargeTemplateSeeded() called on EVERY page load
- discharge_templates() method called it on every view
- getDischargeTemplateRows() called it on every discharge PDF generation
- When count=0, it auto-inserted default templates
- Made it impossible to delete all templates

SOLUTION: Changed to manual opt-in template creation

1. Removed auto-seeding calls:
   - Setting/Template::discharge_templates() - removed ensureDefaultDischargeTemplateSeeded()
   - Ipd_discharge::getDischargeTemplateRows() - removed ensureDefaultDischargeTemplateSeeded()
   - Both now only call ensureDischargeTemplateTable() (structure check only)

2. Added manual template creation:
   - New 'Create Default Templates' button shown when table is empty
   - New endpoint: discharge_templates_seed() - creates defaults on demand
   - Route: POST /setting/template/discharge_templates_seed
   - Button confirms before creating, shows success message, reloads page

3. Preserved seeding functions:
   - ensureDefaultDischargeTemplateSeeded() kept but not auto-called
   - Can be manually triggered via new button
   - Creates 'Default Discharge Template' and 'NABH Compliant Discharge Summary'

BEHAVIOR NOW:
- Users can delete ALL templates - they stay deleted
- Empty table shows helpful message with creation button
- Templates only created when user explicitly requests them
- No more surprise template regeneration

TESTING:
- Delete all templates
- Page reloads showing empty table with button
- Click 'Create Default Templates'
- 2 templates created (ID 1 and 2)

app/Config/Routes.php

@@ -873,6 +873,7 @@ $routes->post('Lab_Admin/pathology_master_add_component', 'Setting\Template::pat
 $routes->get('Lab_Admin/pathology_bridge_debug', 'Setting\Template::pathologyBridgeDebug');
 
 $routes->match(['get', 'post'], 'setting/template/discharge_templates', 'Setting\Template::discharge_templates');
+$routes->post('setting/template/discharge_templates_seed', 'Setting\Template::discharge_templates_seed');
 $routes->get('setting/template/discharge_template_get/(:num)', 'Setting\Template::discharge_template_get/$1');
 $routes->match(['get', 'post'], 'setting/template/discharge_templates/delete/(:num)', 'Setting\Template::discharge_template_delete/$1');
 $routes->match(['get', 'post'], 'setting/template/ipd_document_templates', 'Setting\Template::ipd_document_templates');

app/Controllers/Ipd_discharge.php

@@ -272,7 +272,9 @@ class Ipd_discharge extends BaseController
 
     private function getDischargeTemplateRows(): array
     {
-        $this->ensureDefaultDischargeTemplateSeeded();
+        // Ensure table structure exists, but don't auto-seed templates
+        // This allows users to delete all templates without them auto-regenerating
+        $this->ensureDischargeTemplateTable();
         if (! $this->db->tableExists('ipd_discharge_templates')) {
             return [];
         }

app/Controllers/Setting/Template.php

@@ -2804,7 +2804,9 @@ HTML;
             return $resp;
         }
 
-        $this->ensureDefaultDischargeTemplateSeeded();
+        // Ensure table structure exists, but don't auto-seed templates
+        // This allows users to delete all templates without them auto-regenerating
+        $this->ensureDischargeTemplateTable();
 
         $notice = '';
         $noticeType = 'success';
@@ -2966,6 +2968,27 @@ HTML;
         ]);
     }
 
+    public function discharge_templates_seed()
+    {
+        if ($resp = $this->requireAnyPermission(['template.discharge'])) {
+            return $resp;
+        }
+
+        // Manually seed default templates (on user request)
+        $this->ensureDefaultDischargeTemplateSeeded();
+
+        if ($this->request->isAJAX()) {
+            return $this->response->setJSON([
+                'update' => 1,
+                'error_text' => 'Default templates created successfully.',
+                'csrfName' => csrf_token(),
+                'csrfHash' => csrf_hash(),
+            ]);
+        }
+
+        return redirect()->to(base_url('setting/template/discharge_templates'));
+    }
+
     public function discharge_template_delete(int $id)
     {
         if ($resp = $this->requireAnyPermission(['template.discharge'])) {

app/Views/Setting/Template/discharge_templates.php

@@ -181,7 +181,15 @@ $status = (int) ($edit['status'] ?? 1);
                     </thead>
                     <tbody>
                         <?php if (empty($rows)): ?>
-                            <tr><td colspan="5" class="text-center text-muted">No templates found.</td></tr>
+                            <tr>
+                                <td colspan="5" class="text-center py-4">
+                                    <div class="text-muted mb-2">No templates found.</div>
+                                    <button type="button" class="btn btn-sm btn-outline-primary" id="btn_create_defaults">
+                                        <i class="fas fa-plus-circle"></i> Create Default Templates
+                                    </button>
+                                    <div class="small text-muted mt-2">Creates "Default Discharge Template" and "NABH Compliant Discharge Summary"</div>
+                                </td>
+                            </tr>
                         <?php else: ?>
                             <?php foreach ($rows as $row): ?>
                                 <tr>
@@ -665,5 +673,45 @@ $status = (int) ($edit['status'] ?? 1);
             openDischargeUrl('<?= site_url('Ipd_discharge/show_discharge') ?>', ipdId, 1);
         });
     }
+
+    // Handle "Create Default Templates" button
+    var createDefaultsBtn = document.getElementById('btn_create_defaults');
+    if (createDefaultsBtn) {
+        createDefaultsBtn.addEventListener('click', function () {
+            if (!window.confirm('Create 2 default discharge templates?')) {
+                return;
+            }
+
+            var formData = new FormData();
+            formData.append('<?= csrf_token() ?>', '<?= csrf_hash() ?>');
+            formData.append('action', 'seed_defaults');
+
+            fetch('<?= base_url('setting/template/discharge_templates_seed') ?>', {
+                method: 'POST',
+                body: formData,
+                headers: {
+                    'X-Requested-With': 'XMLHttpRequest'
+                }
+            })
+                .then(function (res) { return res.json(); })
+                .then(function (data) {
+                    updateCsrfToken(data);
+                    if (!data || parseInt(data.update || 0, 10) !== 1) {
+                        setNotice('danger', (data && data.error_text) ? data.error_text : 'Failed to create templates.');
+                        return;
+                    }
+
+                    setNotice('success', data.error_text || 'Default templates created successfully.');
+
+                    // Reload page to show new templates
+                    setTimeout(function() {
+                        window.location.reload();
+                    }, 500);
+                })
+                .catch(function () {
+                    setNotice('danger', 'Network error while creating templates.');
+                });
+        });
+    }
 })();
 </script>