chore: release 3.21.0

[joshuawheelock]

3.21.0 - 2026-08-18

Added

• TUI goal creation result screen: Cockpit and Goals-screen authoring now show a bounded pending, success, or failure result after submission. Successful results include the created goal ID and remain visible until Enter is pressed; failures retain every entered value for retry or allow cancellation with Escape.

Fixed

• TUI goal scope authoring: Scope-in and scope-out values are now collected as independent repeatable items, preserving spaces, item order, and entered values when navigating backward or forward through the goal wizard.
• TUI goal authoring layout: Long objective values now wrap within the bounded goal wizard without expanding its background into horizontal bands, and the input cursor remains after the final wrapped character.