Fix discharge status header in auto-generated content and remove Date of Discharge

CRITICAL FIX - User Requirement:
- If ipd_status = 0: Show 'Discharge Summary' only
- If ipd_status != 0: Show value from ipd_discharge_status.status_details
- Remove 'Date of Discharge' line completely

Problem:
- {{DISCHARGE_SUMMARY}} still showed 'Discharge Summary' header regardless of status
- 'Date of Discharge: YYYY-MM-DD' line was appearing
- Previous fix only worked on saved content via regex, not on auto-generated content

Root Cause:
- buildAutoDischargeContent() method had hardcoded 'Discharge Summary' header
- getDischargeStatusText() was querying database but header wasn't being used
- Date of Discharge was being added to dischargeSummaryParts array

Solution:

1. Updated buildAutoDischargeContent() method (line ~1670):
   - Removed 'Date of Discharge' from dischargeSummaryParts array
   - Added comment: 'NOTE: Date of Discharge removed per user request'
   - Call getDischargeStatusText() to get dynamic header
   - Use status-based header instead of hardcoded 'Discharge Summary'
   - Now generates: <h4>status_details_value</h4> instead of <h4>Discharge Summary</h4>

2. Updated getDischargeStatusText() method (line ~1047):
   - Added early return for ipd_status = 0: returns 'Discharge Summary'
   - For ipd_status != 0: queries ipd_discharge_status table
   - Returns status_details field (primary)
   - Falls back to status_desc if status_details is empty
   - Final fallback: 'Discharge Summary'

3. Updated buildAutoDischargeSummaryTable() method (line ~1517):
   - Used for {{PATIENT_INFO_TABLE}} token
   - Now uses getDischargeStatusText() for header
   - Changes <h2>Discharge Summary</h2> to <h2>status_value</h2>
   - Keeps patient info table structure unchanged

Status Mapping Logic:
- ipd_status = 0 → 'Discharge Summary' (special case, no DB lookup)
- ipd_status = 1 → Query DB → 'Discharge Summary' (from status_details)
- ipd_status = 2 → Query DB → 'Leave Against Medical Advice'
- ipd_status = 3 → Query DB → 'Refer To Higher Centre'
- ipd_status = 5 → Query DB → 'Dead Summary'
- ipd_status = 7 → Query DB → 'Discharge on Request'

Content Structure Before:
<h4>Discharge Summary</h4>
<div>
<b>Department:</b> General Surgery<br>
<b>Treating Doctor(s):</b> Dr. Name<br>
<b>Date of Admission:</b> 04-06-2026<br>
<b>Date of Discharge:</b> 07-06-2026
</div>

Content Structure After:
<h4>Leave Against Medical Advice</h4>
<div>
<b>Department:</b> General Surgery<br>
<b>Treating Doctor(s):</b> Dr. Name<br>
<b>Date of Admission:</b> 04-06-2026
</div>

Testing:
1. Set ipd_master.ipd_status = 0 → regenerate → should show 'Discharge Summary'
2. Set ipd_master.ipd_status = 1 → regenerate → should show 'Discharge Summary'
3. Set ipd_master.ipd_status = 2 → regenerate → should show 'Leave Against Medical Advice'
4. Set ipd_master.ipd_status = 5 → regenerate → should show 'Dead Summary'
5. 'Date of Discharge' line should NOT appear in any case

Files Modified:
- app/Controllers/Ipd_discharge.php:
  - getDischargeStatusText() - Added ipd_status = 0 check
  - buildAutoDischargeContent() - Removed Date of Discharge, use dynamic header
  - buildAutoDischargeSummaryTable() - Use dynamic header

IMPORTANT: User must REGENERATE discharge summary after pulling code
- Click 'Regenerate' button on discharge preview page
- Or delete existing discharge content and reload form
- Old saved content will still have old header until regenerated

app/Controllers/Ipd_discharge.php

@@ -1054,6 +1054,11 @@ class Ipd_discharge extends BaseController
 
         $ipdStatus = (int) ($ipd->ipd_status ?? 0);
 
+        // If status is 0 (Status Pending), show "Discharge Summary" only
+        if ($ipdStatus === 0) {
+            return 'Discharge Summary';
+        }
+
         // Check if ipd_discharge_status table exists
         if (! $this->db->tableExists('ipd_discharge_status')) {
             return 'Discharge Summary';
@@ -1069,9 +1074,10 @@ class Ipd_discharge extends BaseController
             return 'Discharge Summary';
         }
 
-        // Prefer status_details if available, otherwise use status_desc
+        // Use status_details field (e.g., "Discharge Summary", "Leave Against Medical Advice", "Dead Summary")
         $statusText = trim((string) ($row['status_details'] ?? ''));
         if ($statusText === '') {
+            // Fallback to status_desc if status_details is empty
             $statusText = trim((string) ($row['status_desc'] ?? ''));
         }
 
@@ -1532,7 +1538,10 @@ class Ipd_discharge extends BaseController
         $admitDate = $this->safeDate((string) ($ipd->str_register_date ?? $ipd->register_date ?? ''));
         $dischargeDate = $this->safeDate((string) ($ipd->str_discharge_date ?? $ipd->discharge_date ?? ''));
 
-        return '<h2 style="text-align:center;margin:1px;padding:0px;">Discharge Summary</h2>'
+        // Get discharge status header
+        $statusHeader = $this->getDischargeStatusText($ipd);
+
+        return '<h2 style="text-align:center;margin:1px;padding:0px;">' . esc($statusHeader) . '</h2>'
             . '<hr style="margin:1px;padding:0px;" />'
             . '<table width="100%" cellpadding="0" cellspacing="0">'
             . '<tr><td width="150px"><b>Name</b></td><td width="250px">' . esc($patientName) . '</td><td width="150px"><b>UHID</b></td><td width="250px">' . esc($patientCode) . '</td></tr>'
@@ -1683,12 +1692,13 @@ class Ipd_discharge extends BaseController
         if ($admitDate !== '') {
             $dischargeSummaryParts[] = '<b>Date of Admission:</b> ' . esc($admitDate);
         }
-        if ($dischargeDate !== '') {
-            $dischargeSummaryParts[] = '<b>Date of Discharge:</b> ' . esc($dischargeDate);
-        }
+        // NOTE: Date of Discharge removed per user request
         
         if (! empty($dischargeSummaryParts)) {
-            $sections[] = '<h4 style="margin:16px 0 8px 0;">Discharge Summary</h4>'
+            // Get discharge status text based on ipd_status
+            $dischargeStatusHeader = $this->getDischargeStatusText($ipd);
+            
+            $sections[] = '<h4 style="margin:16px 0 8px 0;">' . esc($dischargeStatusHeader) . '</h4>'
                 . '<div>' . implode('<br>', $dischargeSummaryParts) . '</div>';
         }