-- The taxonomy is now a fixed, closed set (no more user-created "kinds").
-- Any prior arbitrary kinds and their classification history are reset:
-- the concept they classified against no longer exists.
DELETE FROM kind_assignments;
DELETE FROM workout_kinds;

-- Placeholder rule: distance is never negative, so this never matches.
-- Every activity starts in needs_review for every type until real rules
-- are tuned (a follow-up plan, not this migration).
INSERT INTO workout_kinds (name, description, color, rule_json, priority, is_active) VALUES
    ('Easy Run',       '', '#22c55e', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1),
    ('Long Run',       '', '#3b82f6', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1),
    ('Threshold 30''', '', '#f59e0b', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1),
    ('Threshold 60''', '', '#f59e0b', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1),
    ('Tempo',          '', '#eab308', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1),
    ('Interval',       '', '#ef4444', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1),
    ('MAS Test',       '', '#a855f7', '{"match":"all","conditions":[{"metric":"distance_meters","op":"<","value":0}]}', 0, 1);