Release v2.14.1

fix(cloud): autosave pickup prefix mode from stations UI

Summary

Fixes stations-tab autosave for Abholcode-Buchstabe von and Abholcode-Buchstaben.

pickupPrefixMode lived on stammdaten (manual Save) while the control sits in the autosaved stations UI. Changing the mode marked the form dirty forever, so the status bar never showed a successful autosave even when station letters did save via configuration PUT.

Changes

• Include pickupPrefixMode in configuration autosave watch + snapshot
• Persist mode with a partial event PUT alongside configuration save
• Clear stammdaten dirty state for that field after a successful mode save
• Unit coverage for snapshot/payload/baseline helpers

Test plan

• eventDetailSave unit tests
• Related pickup-prefix section + dirty autosave tests
• Lint
• Manual: on Stations, switch mode and edit station letters; status bar should reach saved

Release

• No release (bugfix for already-shipped UI)