Daedalus Operation Migration Final Report (2026-04-10)

Objective

Unify CAD mutation entry points around document operations and adapter-driven history commands without breaking current UI behavior.

Work Completed

• Expanded operation model for layer/layout/viewport/title updates.
• Expanded history adapter mappings to preserve undo/redo consistency.
• Connected D_Daedalus layout interactions to operation-based history execution.
• Reduced duplication by introducing a shared layout history-command execution helper.

Major Integrated Flows

• Layer visibility/lock/printable and presets.
• Active space and active layout switching.
• Viewport update/add/remove and pointer-up commit for move/resize.
• Viewport lock toggle.
• Title block selection and title field updates.

Safety Strategy Used

• Keep legacy executeLayoutCommandEntry and direct update fallbacks in place when command generation returns null.
• Keep live preview mutations during pointer move outside committed history until pointer up.

Validation

• Diagnostics check on modified files: no errors.
• Full build not executed in this phase by request.

Deliverables

• docs/daedalus-cad-inventory-2026-04-10.md
• docs/daedalus-ribbon-configuration-design-2026-04-10.md
• docs/daedalus-final-report-2026-04-10.md

Known Follow-ups

• Add targeted tests for operationHistoryAdapter layout mappings.
• Continue migration for remaining direct updateCadLayout write paths that are not live-preview only.