- listPersonas: compute per-user my_outcome for ALL roles; always set the
key (default 'not_tried') so the all-roles UI never sees undefined
(fixes global super_admin without org showing every persona as trained)
- start_session/mode lookups (send/finish/resume/authorize): no preview
mode; every role creates one-shot 'trainee' sessions. The one-shot lock
(1 persona chat per user; many users per persona) now applies to all roles
- Chat.vue: always start in trainee mode, remove preview label
- Personas.vue: unified branches - show 'แชท' when untrained, 'สรุปผล'+variant
when trained, for all roles
- Rewrite test_admin_preview.py to assert the new no-preview one-shot behavior
4b5a14079b