Change log for IBM_WEBSPHERE_APP_SERVER

Date Changes
2026-03-05 Enhancement:
- `event.idm.read_only_udm.principal.asset.platform_software.platform`: If `os_name` contains "windows", Set the value of `event.idm.read_only_udm.principal.asset.platform_software.platform` to "WINDOWS".
- `event.idm.read_only_udm.additional.fields`: Newly mapped `websphere_java_version` (key: `websphere_java_version`), `websphere_platform_details` (key: `websphere_platform_details`), `java_compiler` (key: `java_compiler`), `java_vm_name` (key: `java_vm_name`), `parent_context` (key: `parent_context`), `event_context` (key: `event_context`) and `method_name` (key: `method_name`) raw log fields with `event.idm.read_only_udm.additional.fields` UDM field.
- `event.idm.read_only_udm.principal.application`: Newly mapped `principal_application` raw log field with `event.idm.read_only_udm.principal.application` UDM field.
- `event.idm.read_only_udm.principal.asset.platform_software.platform_version`: Newly mapped `os_version` raw log field with `event.idm.read_only_udm.principal.asset.platform_software.platform_version` UDM field.
- `event.idm.read_only_udm.principal.asset.platform_software.platform_patch_level`: Newly mapped `os_name` raw log field with `event.idm.read_only_udm.principal.asset.platform_software.platform_patch_level` UDM field.
- `event.idm.read_only_udm.principal.resource.name`: Newly mapped `process_name` raw log field with `event.idm.read_only_udm.principal.resource.name` UDM field.
- `event.idm.read_only_udm.security_result.detection_fields`: Newly mapped `full_orb_version` (key: `full_orb_version`) raw log field with `event.idm.read_only_udm.security_result.detection_fields` UDM field.
- `event.idm.read_only_udm.target.application`: Newly mapped `target_application` raw log field with `event.idm.read_only_udm.target.application` UDM field.
- Added the grok patterns to ensure incorrect values are no longer being mapped to `event.idm.read_only_udm.metadata.event_timestamp.nanos` UDM field. Additionally, this is allowing the following UDM fields are now being parsed correctly:
- `event.idm.read_only_udm.metadata.description`
- `event.idm.read_only_udm.metadata.product_event_type`
- `event.idm.read_only_udm.metadata.product_version`
- `event.idm.read_only_udm.principal.process.pid`
- `event.idm.read_only_udm.security_result.severity_details`
- `event.idm.read_only_udm.target.process.file.full_path`
2025-10-03 Enhancement:
- `event.idm.read_only_udm.intermediary.hostname`: Newly mapped `inter_host` raw log field to `event.idm.read_only_udm.intermediary.hostname` UDM field.
- `event.idm.read_only_udm.intermediary.application`: Newly mapped `inter_app` raw log field to `event.idm.read_only_udm.intermediary.application` UDM field.
- `event.idm.read_only_udm.principal.process.pid`: Newly mapped `prin_pid` raw log field to `event.idm.read_only_udm.principal.process.pid` UDM field.
- `event.idm.read_only_udm.security_result.severity`: Newly mapped `level` raw log field to `event.idm.read_only_udm.security_result.severity` UDM field.
- `event.idm.read_only_udm.security_result.severity_details`: Newly mapped `level` raw log field to `event.idm.read_only_udm.security_result.severity_details` UDM field.
- `event.idm.read_only_udm.network.session_id`: Newly mapped `sess_id` raw log field to `event.idm.read_only_udm.network.session_id` UDM field.
- `event.idm.read_only_udm.additional.fields`: Newly mapped `ThreadId`, `logSource`, `app_specific_tag`, `sectok`, `FINSESSION_ID` raw log fields to `event.idm.read_only_udm.additional.fields` UDM field.
- Added conditional checks to map `product`, `vendor`, and `file_name` to `event.idm.read_only_udm.metadata.product_name`, `event.idm.read_only_udm.metadata.vendor_name`, and `event.idm.read_only_udm.target.file.full_path` only if the raw fields are not empty.
- Added grok pattern in order to parse new pattern of syslog logs.