Provide the date and epoch data type support

[sadilchamishka]

Purpose

Define date and epoch as first class supported data types of the product.

Related Issues

• Provide date and epoch data type support additionally to the dateTime data type product-is#25560

When handling date & time related data, having only the date_time data type leads to complexities in processing as it can be either date, date with time or an epoch time. Those time formats are widely used formats and used for different scenarios. The UX for such data types also different.

• date -> date picker
• dateTime -> date time pickers
• epoch -> Text

There should be first class identifier about the type of the data, then we can provide support to define the patterns if the current pattern not align with the ISO formats of the above defined types.

.
.

"dataType" : "date",
"inputFormat": {
      "pattern": "DD-MM-YYYY",
      "inputType": "date_picker"
},
.
.

[Copilot]

Pull Request Overview

This PR introduces support for date and epoch data types as first-class data types in the claim management system, replacing the previous date_time validation with a more specific date validation.

• Added DATE and EPOCH enum values to the DataType enumeration
• Updated validation logic to check for DATE data type instead of DATE_TIME when using date_picker input format

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
DataType.java	Added DATE and EPOCH enum constants with documentation
ServerClaimManagementService.java	Updated validation to use DATE instead of DATE_TIME for date_picker input format

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[sadilchamishka]

Integration tests - https://github.com/sadilchamishka/product-is/actions/runs/17569383949

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/17569595541

[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/17569595541
Status: failure