DROP INDEX IF EXISTS idx_ai_conv_project_uid;
DROP INDEX IF EXISTS idx_ai_conv_access_vis;
DROP INDEX IF EXISTS idx_ai_conv_project_created;
DROP INDEX IF EXISTS idx_ai_conv_user_created;
DROP INDEX IF EXISTS idx_ai_conv_scope;
DROP INDEX IF EXISTS idx_ai_conv_project_id;
DROP INDEX IF EXISTS idx_ai_conv_user_id;
DROP TABLE IF EXISTS ai_conversation;