validateAndSanitise() no longer cross-contaminates:
- contact_interne overwrote mail, which then copied to contact_visible
- Fixed: contactInterne from contact_interne (admin) or confirmation_email (student)
- Fixed: contactVisible from contact_visible (admin) or mail (student)
- Fixed: submit() uses contactInterne as author email, not mail
- Fix#1: Add is_published to getThesisRawFields() SELECT so the publish
checkbox stays checked when editing an already-published TFE.
- Fix#2: Rename 'Note contextuelle' → 'Note contextuelle relative à
soutenance' in all templates and StudentEmail.
- Fix#3: Update findOrCreateAuthor to also UPDATE the author name when
a record is found by name (fixes inability to capitalise names).
- Fix #4/#5: Decouple contact_interne (private author email) from
contact_visible (public contact on TFE page). Add migration 037 to
add contact_visible TEXT column to theses table and rebuild
v_theses_full view. Update all controllers, templates, and DB methods
to treat them independently.
- Fix#6: Investigated libre→interne restriction — no code barrier
found; likely resolved by is_published fix.
