Add missing DataRetentionSettings configuration settings

Add 7 missing DataRetentionSettings configuration options to the compliance documentation:
- TimeBetweenBatchesMilliseconds
- RetentionIdsBatchSize  
- BoardsRetentionDays
- EnableMessageDeletion
- EnableFileDeletion
- EnableBoardsDeletion
- BatchSize

These settings provide better control over data retention job execution and performance.

Fixes #8160

Co-authored-by: Carrie Warner (Mattermost) <cwarnermm@users.noreply.github.com>

Author: claude[bot]

source/configure/compliance-configuration-settings.rst

@@ -114,6 +114,132 @@ Run deletion job now
 
 Start a Data Retention deletion job immediately. You can monitor the status of the job in the data deletion job table within the Policy Log section.
 
+.. config:setting:: time-between-batches-milliseconds
+  :displayname: Time between batches (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.TimeBetweenBatchesMilliseconds
+  :environment: MM_DATARETENTIONSETTINGS_TIMEBETWEENBATCHESMILLISECONDS
+  :description: The time in milliseconds between batches processed during data retention job execution. Used to control the rate at which data is deleted to reduce database load. Default is 100 milliseconds.
+
+Time between batches
+~~~~~~~~~~~~~~~~~~~~~
+
+The time in milliseconds between batches processed during data retention job execution. This setting helps control the rate at which data is deleted to reduce database load during retention operations.
+
+Default is 100 milliseconds.
+
++--------------------------------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"TimeBetweenBatchesMilliseconds": 100`` with numerical input.               |
++--------------------------------------------------------------------------------------------------------------------------+
+
+.. config:setting:: retention-ids-batch-size
+  :displayname: Retention IDs batch size (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.RetentionIdsBatchSize
+  :environment: MM_DATARETENTIONSETTINGS_RETENTIONIDSBATCHSIZE
+  :description: The number of retention IDs to process in a single batch during data retention job execution. Default is 1000.
+
+Retention IDs batch size
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The number of retention IDs to process in a single batch during data retention job execution. This setting controls how many items are processed together for optimal performance.
+
+Default is 1000.
+
++-----------------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"RetentionIdsBatchSize": 1000`` with numerical input.       |
++-----------------------------------------------------------------------------------------------------------+
+
+.. config:setting:: boards-retention-days
+  :displayname: Boards retention days (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.BoardsRetentionDays
+  :environment: MM_DATARETENTIONSETTINGS_BOARDSRETENTIONDAYS
+  :description: Set how long Mattermost keeps boards data. Default is 0 (disabled).
+
+Boards retention days
+~~~~~~~~~~~~~~~~~~~~~
+
+Set how long Mattermost keeps boards data. When set to a value greater than 0, boards data older than the specified number of days will be deleted during retention job execution.
+
+Default is 0 (disabled).
+
++-----------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"BoardsRetentionDays": 0`` with numerical input.     |
++-----------------------------------------------------------------------------------------------------+
+
+.. config:setting:: enable-message-deletion
+  :displayname: Enable message deletion (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.EnableMessageDeletion
+  :environment: MM_DATARETENTIONSETTINGS_ENABLEMESSAGEDELETION
+  :description: Enable or disable message deletion during data retention job execution. Default is true.
+
+Enable message deletion
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Enable or disable message deletion during data retention job execution. When set to false, messages will not be deleted regardless of other retention settings.
+
+Default is true.
+
++-----------------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"EnableMessageDeletion": true`` with boolean input.        |
++-----------------------------------------------------------------------------------------------------------+
+
+.. config:setting:: enable-file-deletion
+  :displayname: Enable file deletion (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.EnableFileDeletion
+  :environment: MM_DATARETENTIONSETTINGS_ENABLEFILEDELETION
+  :description: Enable or disable file deletion during data retention job execution. Default is true.
+
+Enable file deletion
+~~~~~~~~~~~~~~~~~~~~
+
+Enable or disable file deletion during data retention job execution. When set to false, files will not be deleted regardless of other retention settings.
+
+Default is true.
+
++--------------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"EnableFileDeletion": true`` with boolean input.        |
++--------------------------------------------------------------------------------------------------------+
+
+.. config:setting:: enable-boards-deletion
+  :displayname: Enable boards deletion (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.EnableBoardsDeletion
+  :environment: MM_DATARETENTIONSETTINGS_ENABLEBOARDSDELETION
+  :description: Enable or disable boards deletion during data retention job execution. Default is true.
+
+Enable boards deletion
+~~~~~~~~~~~~~~~~~~~~~~
+
+Enable or disable boards deletion during data retention job execution. When set to false, boards data will not be deleted regardless of other retention settings.
+
+Default is true.
+
++----------------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"EnableBoardsDeletion": true`` with boolean input.        |
++----------------------------------------------------------------------------------------------------------+
+
+.. config:setting:: batch-size-data-retention
+  :displayname: Batch size (Data Retention)
+  :systemconsole: Compliance > Data Retention Policies
+  :configjson: .DataRetentionSettings.BatchSize
+  :environment: MM_DATARETENTIONSETTINGS_BATCHSIZE
+  :description: The number of records to process in a single batch during data retention job execution. Default is 1000.
+
+Batch size
+~~~~~~~~~~
+
+The number of records to process in a single batch during data retention job execution. This setting controls how many records are processed together for optimal performance.
+
+Default is 1000.
+
++-------------------------------------------------------------------------------------------------+
+| This feature's ``config.json`` setting is ``"BatchSize": 1000`` with numerical input.        |
++-------------------------------------------------------------------------------------------------+
+
 ----
 
 Compliance export