Document AppFramework Python interception settings

[sylvesterkaczmarek]

Description

Document the Kit settings that control Python sys.stdout/sys.stderr and sys.exit interception in the existing AppFramework standalone example.

Kit enables these interceptions by default, which can interfere with notebook output capture, debuggers, and host Python tooling. The example now documents the opt-out flags:

--/app/python/interceptSysStdOutput=false
--/app/python/interceptSysExit=false

They remain commented out, so existing behavior is unchanged.

Validation

• one existing example file changed
• no runtime behavior changes unless a user explicitly enables the documented flags
• preserves the existing AppFramework launch sequence

Addresses the documentation request in #182 (internal ticket ISIM-4389).