Fix database schema for call recording phone number fields

- Increased from_number and to_number fields from varchar(20) to varchar(50)
- Added automatic migration to update existing table schemas
- Addresses issue with outbound calls having long phone number formats
- Added force_table_updates() method for manual schema updates
- Enhanced ensure_tables_exist() to always run column migrations
- Fixes recording database insertion failures for international numbers

The original varchar(20) was too small for modern phone number formats,
especially for outbound calls which may include client: prefixes and
international numbers with country codes.

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

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

admin/class-twp-admin.php

@@ -7379,8 +7379,9 @@ class TWP_Admin {
         
         error_log("TWP: Starting recording for call SID: $call_sid");
         
-        // Ensure database table exists
+        // Ensure database table exists and run any migrations
         TWP_Activator::ensure_tables_exist();
+        TWP_Activator::force_table_updates();
         
         try {
             $twilio = new TWP_Twilio_API();