@W-19450863 feat: Site ID regex and prompt updated for correctness & clarity (#3410)

* Site ID prompt has been updated for correct clarity

* update regex

* update change log

* update change log

* revert prompt text

* Update CHANGELOG.md

Signed-off-by: sf-henry-semaganda <henry.semaganda@salesforce.com>

---------

Signed-off-by: sf-henry-semaganda <henry.semaganda@salesforce.com>

Author: sf-henry-semaganda

packages/pwa-kit-create-app/CHANGELOG.md

@@ -1,3 +1,7 @@
+
+## v3.14.0-dev (Oct 20, 2025)
+- Prompt text for Site ID should match actual validation: Site ID may contain uppercase or lowercase letters, numbers, hyphens, or underscores. - Updated Site ID validator regex to allow both uppercase and lowercase letters for improved compatibility, clarity. [#3410] (https://github.com/SalesforceCommerceCloud/pwa-kit/pull/3410)
+
 ## v3.14.0-dev (Sep 26, 2025)
 
 ## v3.13.0 (Sep 25, 2025)

packages/pwa-kit-create-app/program.json

@@ -726,7 +726,7 @@
                 "name": "Valid Site ID",
                 "description": "Ensures the Site ID is valid.",
                 "message": "Valid characters are alphanumeric, hyphen, or underscore",
-                "regex": "^[a-z0-9_-]+$"
+                "regex": "^[A-Za-z0-9_-]+$"
             },
             {
                 "id": "validShortCode",