Task: Scaffold story: Commission ores.qt.dq — full-stack codegen for the DQ component

(Describe what user-visible-or-internal change this task produces.)

(Implementation strategy. Written when work starts; key decisions are distilled into the parent story's * Decisions at close, but the plan itself stays — it is the historical record of what we did.)

Manual QA scenarios (scaffolded via compass add test_scenario, run through the QA Validation Runner panel) that verify this task. Link new ones here as they're created; the scenario doc itself links back via its "Verifies task" field.

Story scaffolded: docs, sprint wiring. Goal and task-breakdown decision (one task per DQ entity) written into story.org, capturing what the badge migration session (Migrate badge_definition/badge_severity/code_domain to standard codegen + DQ publishing) left half-done deliberately: repository layer regenerated for all three entities, but the hand-written combined badge_handler.hpp=/=badge_service.cpp=/=badge_protocol.hpp and all Qt controllers/dialogs are still hand-written and this story's job to retire.