Task: Fix workspace entity model drift: update to latest format and regenerate

Mirror Fix refdata entity model drift for ores.workspace: regenerate every ores.workspace domain_entity and junction model (compass codegen entity list) against current codegen templates. Where a model uses an outdated format/convention rather than the templates having simply moved on, update the model to the current convention before regenerating. Commit the resulting clean tree.

Along the way, apply the same lessons learned fixing refdata's drift: check whether any entity's SQL/domain/messaging layer is explicitly hand-maintained (a doc comment flagging missing paste-block coverage) before doing a full regen – prefer --address-scoped regen for anything so flagged; grep synthetic generators for hardcoded/fabricated soft-FK values (coding scheme codes, lookup-table codes) that don't match what a freshly-recreated default database actually seeds.

• Every ores.workspace domain_entity and junction model is regenerated via compass codegen entity generate and shows zero diff on a second regen (idempotent).
• Any model found using an outdated format/convention is updated to the current one before regenerating.
• Any entity whose SQL/domain/messaging layer is hand-maintained (flagged in its own model doc, mirroring party's) is excluded from a full regen and only its safe facets (e.g. Qt) are regenerated, same as party's treatment in the refdata task.
• Synthetic generators for FK-referencing fields are checked against actual seed SQL (the default db recreate chain, not optional artefact/dataset scripts) and fixed if they fabricate values that don't exist there.
• compass build and full rat pass after the regenerated files are committed.
• No entity outside workspace is touched.

(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.