sx v2.2.3

Changelog

• 4a5401f Add sx 2.0 launch blog post
• 62116ae SK-669: Address benchmark storage review
• 0899de7 SK-669: Clear deep-link on every panel dismissal
• 1856171 SK-669: Extract targetAssetFor helper
• b708c5d SK-669: Reject JSON null benchmark summary
• 0c7dfad SK-669: StrictMode-safe deep-link consumption
• 64fabd8 SK-669: Unified benchmark storage vault layer
• ee59364 SK-669: openAsset can target an extension tab
• e41b1c9 fix: set TargetAsset on extension drafts