Retire l'action Publier du support de formation

Un apprenant n'a jamais acces a l'editeur : un etat "publie" persiste
en base (published_at) ne servait donc a rien tant qu'aucune vue
apprenant/export ne le consomme (retour utilisateur direct). Retrait
complet : route /document/<slug>/publish, db.mark_support_published,
la colonne logique published_at dans support_meta, le bouton et son
CSS/JS. "Aperçu" devient l'action primaire du bandeau (repond au vrai
besoin : voir le rendu avant un futur export). Un export reel (SCORM
ou equivalent) reste a specifier separement le jour venu.

SKIP=djlint : meme backlog H021 pre-existant que le commit precedent,
aucun fichier touche ici n'y figure. ruff/mypy --strict/vulture/
bandit/import-linter/eslint/stylelint tous verts ; 615 tests Python
(617 - 2 tests du Publier retire) + verification manuelle live du
retrait (route 404, bouton absent du HTML, Apercu confirme
fonctionnel par simulation DOM).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

db/__init__.py

@@ -79,7 +79,6 @@ from .slugify import slugify
 from .supports.create_support import create_support
 from .supports.delete_support import delete_support
 from .supports.list_supports import list_supports
-from .supports.mark_support_published import mark_support_published
 from .supports.support_meta import support_meta
 from .table_name_for import table_name_for
 
@@ -118,7 +117,6 @@ __all__ = [
     "list_supports",
     "support_meta",
     "delete_support",
-    "mark_support_published",
     "ONBOARDING_TYPES",
     "DEFAULT_ONBOARDING_TYPE",
     "get_onboarding_type",

db/supports/__init__.py

@@ -7,7 +7,6 @@ indépendance."""
 from .create_support import create_support
 from .delete_support import delete_support
 from .list_supports import list_supports
-from .mark_support_published import mark_support_published
 from .support_connection import connect_support, install_support_teardown_safety_net
 from .support_dir import support_dir
 from .support_meta import support_meta
@@ -21,7 +20,6 @@ __all__ = [
     "delete_support",
     "install_support_teardown_safety_net",
     "list_supports",
-    "mark_support_published",
     "split_slug",
     "support_dir",
     "support_meta",

db/supports/mark_support_published.py

@@ -1,19 +0,0 @@
-from datetime import UTC, datetime
-
-from .support_connection import connect_support
-
-
-def mark_support_published(slug: str) -> str:
-    """Enregistre l'horodatage de publication (_meta['published_at']) —
-    état réellement persisté, pas un simple accusé de réception côté
-    client (voir docs/plan/PLAN.md, "Publier" doit être réel)."""
-    published_at = datetime.now(UTC).isoformat()
-    conn = connect_support(slug)
-    conn.execute(
-        "INSERT INTO _meta (key, value) VALUES ('published_at', ?) "
-        "ON CONFLICT(key) DO UPDATE SET value = excluded.value",
-        (published_at,),
-    )
-    conn.commit()
-    conn.close()
-    return published_at

db/supports/support_meta.py

@@ -6,10 +6,8 @@ from .support_connection import connect_support
 def support_meta(slug: str) -> dict[str, Any]:
     conn = connect_support(slug)
     row = conn.execute("SELECT value FROM _meta WHERE key = 'name'").fetchone()
-    published_row = conn.execute("SELECT value FROM _meta WHERE key = 'published_at'").fetchone()
     conn.close()
     return {
         "slug": slug,
         "name": row["value"] if row else slug,
-        "published_at": published_row["value"] if published_row else None,
     }