refactor(#155): option C — widgets partagés sans préfixe Admin.

Déplace les composants Admin* du dashboard partagé vers
widgets/dashboard/ (ChildDetailModal, AmEditModal, UserCard, Select*, …).
Conserve AdminManagementWidget et screens/administrateurs. Rename mécanique,
aucun changement de comportement.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/tmp/155-mini-spec-rename-admin-prefix.md

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+# Mini-spec — Rename préfixe `Admin*` dashboard partagé (#155)
+
+**Ticket** : **#155**  
+**Branche** : `feature/155-rename-admin-prefix-dashboard` (depuis `develop`)  
+**Décision naming** : **option C** — dossier neutre `widgets/dashboard/` + noms **sans** préfixe `Admin`.
+
+---
+
+## Principe
+
+Les widgets partagés **admin + gestionnaire** ne doivent plus s’appeler `Admin*`.  
+On garde `Admin*` seulement là où c’est vraiment le rôle administrateur.
+
+## Gardé `Admin*` (hors rename)
+
+| Élément | Raison |
+|---------|--------|
+| `AdminManagementWidget` | Onglet **Administrateurs** |
+| `screens/administrateurs/*` | `AdminDashboardScreen`, `AdminCreateDialog`, `AdminUserFormDialog` |
+| `EnfantAdminModel` | Modèle API (pas un widget) — hors scope ticket |
+
+## Renames faits
+
+| Avant | Après |
+|-------|--------|
+| `widgets/admin/common/admin_child_detail_modal.dart` → `AdminChildDetailModal` | `widgets/dashboard/child_detail_modal.dart` → `ChildDetailModal` |
+| `admin_am_edit_modal` → `AdminAmEditModal` | `am_edit_modal` → `AmEditModal` |
+| `admin_parent_edit_modal` → `AdminParentEditModal` | `parent_edit_modal` → `ParentEditModal` |
+| `admin_user_card` → `AdminUserCard` | `user_card` → `UserCard` |
+| `admin_enfant_user_card` → `AdminEnfantUserCard` | `enfant_user_card` → `EnfantUserCard` |
+| `admin_am_photo_frame` → `AdminAmPhotoFrame` | `am_photo_frame` → `AmPhotoFrame` |
+| `admin_am_children_capacity_grid` | `am_children_capacity_grid` → `AmChildrenCapacityGrid` |
+| `admin_children_affiliation_panel` | `children_affiliation_panel` → `ChildrenAffiliationPanel` |
+| `admin_select_*` / `AdminSelect*` / `AdminFamilleFoyer` | `select_*` / `Select*` / `FamilleFoyer` |
+| `admin_status_capsule` | `status_capsule` → `StatusCapsule` |
+| `admin_list_state` → `AdminListState` | `user_list_state` → `UserListState` |
+| `admin_detail_modal` → `AdminDetailModal` / `AdminDetailField` | `detail_modal` → `DetailModal` / `DetailField` |
+| `dashboard_admin.dart` | `user_management_sub_bar.dart` (`DashboardUserManagementSubBar` inchangé) |
+
+Dossier `widgets/admin/` conserve les panels métier (`user_management_panel`, wizards, etc.) + `AdminManagementWidget`.
+
+## Hors scope
+
+- Refonte UX modales (ticket dédié)
+- Rename API / back
+- Déplacer tout `widgets/admin/` → `widgets/dashboard/` (panels) — possible follow-up
+
+## Critères
+
+- [x] Plus de préfixe `Admin` sur les composants **partagés** listés
+- [ ] Build Flutter / recette dashboard admin + gestionnaire OK
+- [x] Pas de changement comportemental (rename mécanique)