Task: Restore the code generation methodology seed

Database recreation completes on main again, and every seed script that names the code generation methodology resolves against it.

• compass db recreate completes from scratch
• The methodology is seeded alongside the other general methodologies, not inside a dataset-specific script
• The restored implementation details describe the live pipeline, naming no deleted script

(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.

OreStudio Code Generation Methodology is seeded again, in dq_methodology_populate.sql alongside the other general methodologies.

The row was defined in solvaris_methodology_populate.sql and was deleted with the slovaris dataset in 4059ea5cd8. It was never slovaris data: acme_dataset_populate.sql and ten refdata and synthetic seed scripts name it too, so every database recreation since has failed at acme_dataset_populate.sql:433.

Its name, description and logic reference are the original. The implementation details are not: the original walked a reader through run_generator.sh and models/slovaris, both deleted by the same commit, so restoring that text would have undone the cleanup it was doing. The replacement describes the live pipeline.

Acceptance met. compass db recreate --yes --kill completes in 49 seconds where it previously failed; fifteen methodologies are seeded including this one; and the thirty-four acme datasets that name it resolve against it.