Generate pattern files for all remaining negative API tests

- Generated 31 database_api_negative pattern files
- Generated 2 follow_api_negative pattern files
- Generated 2 postgrest_negative pattern files
- Generated 7 rest_api_negative pattern files
- Fixed indentation for ignore_tags in database_api_negative tests

All pattern files now use the hived-compatible error format with:
- error.data.message matching error.data.extension.assertion_expression
- Proper timestamp field that will be ignored in tests