- handle contact PATCH failures by checking model save result and returning HTTP 400 with the model error message
- update ContactDetailModel nested updates to enforce active-detail checks and use model update() with explicit failure propagation
- extend contact patch assertions and align test-create variants expectations to status=success for POST responses
- refresh composer lock metadata/dependency constraints and include generated docs/data/test files updated during normalization
- impact: API contract unchanged except clearer 400 error responses on invalid contact detail updates
Normalize formatting/line endings across configs, controllers, models, tests, and OpenAPI specs.
Update rule expression/rule engine implementation and remove obsolete RuleAction controller/model.
Add unit tests for rule expression syntax and multi-action behavior, and include docs updates.
