nx_attempt.nx

nx_attempt.nx -- the WARDEN's ATTEMPT LOOP v1 (X-Q-003, honest scope): EXECUTE recipe-typed assignments, no session. A queue row whose gate cell carries "||EXEC=<lane-basename>" is a RECIPE: its work is running one organ through the sovereign lane (re-prove an arc, run a census fetch, regenerate an artifact). Each beat: pick the FIRST TODO recipe row with all deps DONE, run the lane on it (output -> knowledge/status/attempts.out), append ATTEMPT id=<id> exec=<basename> rc=<n> to knowledge/status/attempts.log. CLOSURE IS NOT CLAIMED HERE: the row's own ||MARK= evidence closes it via nx_reconcile next step -- attempt executes, evidence judges, reconcile flips (three verbs, three organs). ONE attempt per beat (rule 21: bounded work; the queue drains beat by beat). AUTHORING-type assignments stay NOVEL raised hands -- this loop NEVER pretends to write modules. argv[1] = queue override. license_tier: ORIGINAL