-- Split the evaluator's two audiences.
--
-- `reason` is written for the operator and may quote whatever the judge found.
-- It was also being fed straight back to the agents as their brief for the next
-- pass, which taught them to satisfy the checker: a phase whose condition named
-- a literal token was judged complete on pass 2 because pass 1's reason said
-- the token was missing, and an agent printed it.
--
-- `guidance` is the agent-facing half — the unmet dimension without the
-- acceptance text — and is sanitized before it is stored. `checks` records the
-- verification commands the judge ran, so an operator can see whether a verdict
-- rests on evidence or on the agents' own claims.
ALTER TABLE mission_phase_evaluations
    ADD COLUMN IF NOT EXISTS guidance TEXT,
    ADD COLUMN IF NOT EXISTS checks   JSONB NOT NULL DEFAULT '[]'::jsonb;

-- Existing rows predate the split; their reason was what the agents saw.
UPDATE mission_phase_evaluations SET guidance = reason WHERE guidance IS NULL;