Task 09 shipped a powerful API that a non-technical clinic owner could not
safely use. This closes that gap: activation now requires having seen what the
rule actually does.
- PolicySimulator runs a policy against real past appointments and writes
nothing: evaluation works on facts (never entities), the whole run sits in a
transaction rolled back and cleared in `finally`, and a test counts rows in
five sensitive tables before and after
- activate() now demands a simulation of the *same version* — a report for
version 1 does not unlock version 2
- PolicyTemplateRegistry: six ready-made rules, so the common case never
touches a raw condition
- Severity from the affected ratio; 0% is a warning too, since a rule that
changes nothing usually has a condition that never matches
- An empty clinic still succeeds with a warning, otherwise a new clinic could
never activate anything
Admin: PoliciesPage, PolicyFormPage, PolicySimulationPage, and a
PolicyConditionBuilder built entirely from GET /policy-schema — a test proves a
field that exists only in the schema shows up with no frontend change, and that
operators are filtered per field type.
The schema response now carries per-field metadata (label, type, meaningful
operators) so the form has one source of truth instead of two.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
