v0.5.1

• Changed the soap.md prompt: it now states a positive default for unestablished pronouns, treats the Objective fallback rule as an explicit decision gate, no longer quotes the Objective rule's example phrases, and requires continuous prose with no lists in every section.
• Ported the four soap.md prompt fixes to dap.md and birp.md.
• Added month-name and long-number regex rules to deidentify-helper.
• Updated the soapcap-update.icns icon, added an app SwiftUI preview, and ignored Xcode workspace state.