fix: change unknown_table_id log level from warning to debug

Unknown table events are expected behavior for databases with multiple
tables when only specific tables are being replicated. These should be
logged at debug level to reduce log noise in production.

Changes:
- Modified 3 locations in binlog_event_parser.cpp
- Changed event type from mysql_binlog_warning to mysql_binlog_debug
- Changed log level from Warn() to Debug()
- Affects write_rows, update_rows, and delete_rows event handlers

Author: libraz

src/mysql/binlog_event_parser.cpp

@@ -201,11 +201,11 @@ std::optional<BinlogEvent> BinlogEventParser::ParseBinlogEvent(
       const TableMetadata* table_meta = table_metadata_cache.Get(table_id);
       if (table_meta == nullptr) {
         mygram::utils::StructuredLog()
-            .Event("mysql_binlog_warning")
+            .Event("mysql_binlog_debug")
             .Field("type", "unknown_table_id")
             .Field("event_type", "write_rows")
             .Field("table_id", table_id)
-            .Warn();
+            .Debug();
         return std::nullopt;
       }
 
@@ -289,11 +289,11 @@ std::optional<BinlogEvent> BinlogEventParser::ParseBinlogEvent(
       const TableMetadata* table_meta = table_metadata_cache.Get(table_id);
       if (table_meta == nullptr) {
         mygram::utils::StructuredLog()
-            .Event("mysql_binlog_warning")
+            .Event("mysql_binlog_debug")
             .Field("type", "unknown_table_id")
             .Field("event_type", "update_rows")
             .Field("table_id", table_id)
-            .Warn();
+            .Debug();
         return std::nullopt;
       }
 
@@ -381,11 +381,11 @@ std::optional<BinlogEvent> BinlogEventParser::ParseBinlogEvent(
       const TableMetadata* table_meta = table_metadata_cache.Get(table_id);
       if (table_meta == nullptr) {
         mygram::utils::StructuredLog()
-            .Event("mysql_binlog_warning")
+            .Event("mysql_binlog_debug")
             .Field("type", "unknown_table_id")
             .Field("event_type", "delete_rows")
             .Field("table_id", table_id)
-            .Warn();
+            .Debug();
         return std::nullopt;
       }