Fix urgent voicemail SMS from number and add Discord/Slack notifications

- Fix SMS notifications to use Default SMS From Number instead of destination
- Add Discord webhook notifications for urgent keyword voicemails
- Add Slack webhook notifications for urgent keyword voicemails
- Make notification methods public to allow external calls
- Add urgent_voicemail type support with custom formatting
- Include transcription, keyword, and admin link in notifications
- Use bright red color for urgent alerts in both Discord and Slack

🤖 Generated with [Claude Code](https://claude.ai/code)

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

includes/class-twp-notifications.php

@@ -83,7 +83,7 @@ class TWP_Notifications {
     /**
      * Send notification to Discord
      */
-    private static function send_discord_notification($webhook_url, $message, $data) {
+    public static function send_discord_notification($webhook_url, $data, $message = null) {
         $payload = array(
             'content' => $message,
             'embeds' => array(
@@ -105,7 +105,7 @@ class TWP_Notifications {
     /**
      * Send notification to Slack
      */
-    private static function send_slack_notification($webhook_url, $message, $data) {
+    public static function send_slack_notification($webhook_url, $data, $message = null) {
         $payload = array(
             'text' => self::get_notification_title($data),
             'attachments' => array(
@@ -134,6 +134,8 @@ class TWP_Notifications {
                 return '⏰ Queue Timeout Alert';
             case 'missed_call':
                 return '❌ Missed Call';
+            case 'urgent_voicemail':
+                return '🚨 URGENT Voicemail Alert';
             default:
                 return '📋 Call Event';
         }
@@ -152,6 +154,8 @@ class TWP_Notifications {
                 return 16776960; // Yellow
             case 'missed_call':
                 return 15158332; // Red
+            case 'urgent_voicemail':
+                return 16711680; // Bright Red
             default:
                 return 9807270; // Gray
         }
@@ -170,6 +174,8 @@ class TWP_Notifications {
                 return '#ffcc00'; // Yellow
             case 'missed_call':
                 return '#ff0000'; // Red
+            case 'urgent_voicemail':
+                return '#ff0000'; // Bright Red
             default:
                 return '#666666'; // Gray
         }
@@ -213,6 +219,46 @@ class TWP_Notifications {
             );
         }
         
+        // Urgent voicemail specific fields
+        if (isset($data['type']) && $data['type'] === 'urgent_voicemail') {
+            if (isset($data['from_number'])) {
+                $fields[] = array(
+                    'name' => '📞 From',
+                    'value' => $data['from_number'],
+                    'inline' => true
+                );
+            }
+            
+            if (isset($data['keyword'])) {
+                $fields[] = array(
+                    'name' => '🔴 Keyword Detected',
+                    'value' => strtoupper($data['keyword']),
+                    'inline' => true
+                );
+            }
+            
+            if (isset($data['transcription'])) {
+                // Truncate transcription if too long
+                $transcription = $data['transcription'];
+                if (strlen($transcription) > 500) {
+                    $transcription = substr($transcription, 0, 497) . '...';
+                }
+                $fields[] = array(
+                    'name' => '📝 Transcription',
+                    'value' => $transcription,
+                    'inline' => false
+                );
+            }
+            
+            if (isset($data['admin_url'])) {
+                $fields[] = array(
+                    'name' => '🔗 Action',
+                    'value' => '[Listen to Voicemail](' . $data['admin_url'] . ')',
+                    'inline' => false
+                );
+            }
+        }
+        
         return $fields;
     }
 
@@ -254,6 +300,46 @@ class TWP_Notifications {
             );
         }
         
+        // Urgent voicemail specific fields
+        if (isset($data['type']) && $data['type'] === 'urgent_voicemail') {
+            if (isset($data['from_number'])) {
+                $fields[] = array(
+                    'title' => 'From',
+                    'value' => $data['from_number'],
+                    'short' => true
+                );
+            }
+            
+            if (isset($data['keyword'])) {
+                $fields[] = array(
+                    'title' => '🔴 Keyword Detected',
+                    'value' => strtoupper($data['keyword']),
+                    'short' => true
+                );
+            }
+            
+            if (isset($data['transcription'])) {
+                // Truncate transcription if too long
+                $transcription = $data['transcription'];
+                if (strlen($transcription) > 500) {
+                    $transcription = substr($transcription, 0, 497) . '...';
+                }
+                $fields[] = array(
+                    'title' => 'Transcription',
+                    'value' => $transcription,
+                    'short' => false
+                );
+            }
+            
+            if (isset($data['admin_url'])) {
+                $fields[] = array(
+                    'title' => 'Action',
+                    'value' => '<' . $data['admin_url'] . '|Listen to Voicemail>',
+                    'short' => false
+                );
+            }
+        }
+        
         return $fields;
     }