feat(decision-types): make the decisionType vocabulary configuration, not code

[rubenvdlinde]

Why

A decision type is configuration on the existing decision abstraction, not code. Today the vocabulary is a closed list mirrored in four homes: the DecisionIntegrationService::ALLOWED_TYPES constant, the Decision enum in decidesk_register.json, its copy in decidiq_mock_register.json, and the DecisionTemplate narrowing in register.d/68. A parity test pins the four together. Adding one type costs a release in four places. That is how dossiq's advice stalled, and how the pending woo-decision need stalls now.

What changes

• One authority. The vocabulary lives in the decision_types app setting. DecisionTypeRegistry reads it; the integration hub validates against it and fails closed on an unknown type. The refusal message names the fix: an administrator adds the type, no release.
• Seed. SeedDecisionTypes (registered in info.xml under install and post-migration) writes today's vocabulary once, woo-decision included. It never overwrites a stored row, so admin edits survive every upgrade. Until it runs, the registry falls back to the same shipped list, so nothing fails closed in the gap.
• Schema enums drop. The three decisionType declarations become free-text strings with referential validation. No enum is generated either: a copy that drifts from the store recreates the four-homes problem. The trade-off (raw OpenRegister object writes lose enum checking) is documented on the schema; that path already bypasses the chair, quorum and terminal-completeness gates.
• Parity test inverted. It now proves no ALLOWED_TYPES constant exists, no schema home carries an enum, and the seed covers every type a fleet caller sends (dossiq: contract-renewal, report-adoption, advice, bezwaar-decision, woo-decision; stackiq: contract, contract-renewal).
• No enum literal added anywhere. woo-decision enters as seed data.
• OpenSpec change decision-types-as-configuration with spec delta on decidesk-contract-decision-hub (new REQ-DCDH-009, modified REQ-DCDH-001).
• conduction/hydra-gates bumped to v1.11.0.

Adding a type after this PR

occ config:app:get decidiq decision_types
occ config:app:set decidiq decision_types --type array --value '["motion", ..., "subsidy-award"]'

Follow-up (named in design.md)

Per-type behavioural configuration (motion and amendment branching, kind grouping in decisionLink.js, lifecycle domain defaults) belongs to the ADR-037 consumer rewrite. The string registry stays the validity authority.

Verification

• lint, phpcs, phpmd (per subdir, both rulesets), psalm, phpstan: all clean, run individually in the foreground.
• PHPUnit: 1326 tests, 0 failures (30 pre-existing skips).
• Hydra gates, full scope: 75 of 75 applicable gates ran, 0 FAIL.
• Mutation check on the unknown-type refusal: an inverted guard kills 11 tests; a registry that ignores the store kills 5.
• l10n: test:l10n, check:l10n-js, check:manifest, check:nav-ceiling, format all pass; the schema-l10n ratchet baseline drops 1632 to 1613 (removed enum strings).

Note: test:l10n:parity fails on a missing l10n/rm.json. Pre-existing, not run in CI (per the workflow comment), and this PR adds no translatable strings.

[github-actions]

Quality Report — ConductionNL/decidiq @ f96e206

Check	PHP	Vue	Security	License	Tests
lint	✅
phpcs	✅
phpmd	✅
psalm	✅
phpstan	✅
phpmetrics	✅
eslint		✅
stylelint		✅
build		✅
check-manifest		✅
check-nav-ceiling		✅
test-l10n		✅
format		✅
check-l10n-js		✅
check-schema-l10n		✅
composer			✅	✅ 104/104
npm			✅	✅ 537/537
app:check-code	⏭️
info.xml	✅
REUSE	❌
PHPUnit					✅
Newman					✅
Playwright					⏭️ deferred — runs on the promotion into beta/main, not on a pull request into development
Hydra gates					✅

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Quality workflow — 2026-09-02 10:45 UTC

Download the full PDF report from the workflow artifacts.