Fix hwmonDaemon hash collisions and automated comment formatting

- source_type (auto vs manual) added to dedup hash so automated
  tickets never collide with manually created ones
- OSD-specific subtype (osd_down_N) so each OSD gets its own ticket
- Description refreshed on every automated update (current sensor data)
- Comments on worsening condition only fire on meaningful changes
- ASCII art descriptions wrapped in fenced code blocks in comments
- Reopen comment also uses fenced code block

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

create_ticket_api.php

@@ -152,15 +152,24 @@ function generateTicketHash($data) {
             $issueSubtype = 'clock_skew';
         } elseif (stripos($title, 'cluster usage') !== false) {
             $issueSubtype = 'usage';
-        } elseif (stripos($title, 'OSD down') !== false) {
+        } elseif (stripos($title, 'OSD down') !== false || preg_match('/osd\.\d+\s+is\s+DOWN/i', $title)) {
+            // Include the specific OSD ID so each individual OSD gets its own ticket
+            if (preg_match('/osd\.(\d+)/i', $title, $osdMatch)) {
+                $issueSubtype = 'osd_down_' . $osdMatch[1];
+            } else {
                 $issueSubtype = 'osd_down';
+            }
         } elseif (stripos($title, 'HEALTH_ERR') !== false) {
             $issueSubtype = 'health_err';
         }
     }
 
+    // Include source type so automated tickets never collide with manual ones
+    $sourceType = stripos($title, '[auto]') !== false ? 'auto' : 'manual';
+
     // Build stable components
     $stableComponents = [
+        'source_type'    => $sourceType,
         'issue_category' => $issueCategory,
         'issue_subtype'  => $issueSubtype,
         'environment_tags' => array_values(array_filter(
@@ -212,8 +221,8 @@ if ($existing) {
     $newPriority      = (int)$priority;
 
     if ($existingStatus !== 'Closed') {
-        // Ticket is still active — update title and escalate priority if the new
-        // report is more severe (lower number = higher severity).
+        // Ticket is still active — update title, escalate priority, and refresh
+        // description with latest sensor data.
         $changes   = [];
         $updateSql = "UPDATE tickets SET updated_at = NOW(), updated_by = ?";
         $bindTypes = "i";
@@ -233,6 +242,14 @@ if ($existing) {
             $changes['priority'] = ['from' => $existingPriority, 'to' => $newPriority];
         }
 
+        // Always refresh the description so the ticket body shows current sensor data
+        if (!empty($description)) {
+            $updateSql .= ", description = ?";
+            $bindTypes .= "s";
+            $bindVals[] = $description;
+            $changes['description_refreshed'] = true;
+        }
+
         if (!empty($changes)) {
             $updateSql .= " WHERE ticket_id = ?";
             $bindTypes .= "s";
@@ -243,7 +260,9 @@ if ($existing) {
             $updStmt->execute();
             $updStmt->close();
 
-            // Comment summarising what changed
+            // Only add a comment when something meaningful changed (not just a description refresh)
+            $meaningfulChanges = array_diff_key($changes, ['description_refreshed' => true]);
+            if (!empty($meaningfulChanges)) {
                 $changeLines = [];
                 if (isset($changes['title'])) {
                     $changeLines[] = "- **Title updated** to reflect current issue";
@@ -251,17 +270,20 @@ if ($existing) {
                 if (isset($changes['priority'])) {
                     $changeLines[] = "- **Priority escalated** from P{$changes['priority']['from']} to P{$changes['priority']['to']}";
                 }
+                // Wrap description in a fenced code block so ASCII art / box-drawing
+                // characters render correctly instead of collapsing into a paragraph blob
                 $commentText = "**hwmonDaemon reported a worsened condition — ticket updated automatically.**\n\n" .
-                           implode("\n", $changeLines) . "\n\nLatest report:\n\n" . $description;
+                               implode("\n", $changeLines) . "\n\nLatest report:\n\n```\n" . $description . "\n```";
                 $commentStmt = $conn->prepare(
                     "INSERT INTO ticket_comments (ticket_id, user_id, user_name, comment_text, markdown_enabled) VALUES (?, ?, 'hwmonDaemon', ?, 1)"
                 );
                 $commentStmt->bind_param("sis", $existingId, $userId, $commentText);
                 $commentStmt->execute();
                 $commentStmt->close();
+            }
 
             $auditLog->log($userId, 'update', 'ticket', $existingId, array_merge(
-                $changes,
+                array_diff_key($changes, ['description_refreshed' => true]),
                 ['reason' => 'auto-updated by hwmonDaemon (condition worsened)']
             ));
 
@@ -299,7 +321,7 @@ if ($existing) {
     $reopenStmt->close();
 
     $commentText = "**Issue recurred — ticket reopened automatically.**\n\n" .
-                   "New report received from hwmonDaemon:\n\n" . $description;
+                   "New report received from hwmonDaemon:\n\n```\n" . $description . "\n```";
     $commentStmt = $conn->prepare(
         "INSERT INTO ticket_comments (ticket_id, user_id, user_name, comment_text, markdown_enabled) VALUES (?, ?, 'hwmonDaemon', ?, 1)"
     );