feat(api-detail): isCurrent + setCurrent + màj doc et seeder

- Shared types : ajout isCurrent sur ApiEntry et ApiEntryListItem
- Backend entity : colonne is_current (boolean, default true)
- Backend service : isCurrent calculé à la création, setCurrent()
  marque une version comme courante (siblings → false)
- Backend controller : POST /api/apis/:id/set-current
- Frontend ApiService : méthode setCurrent()
- Browse/upload : affichage badge "Courante" via isCurrent
- Seeder : données de démo mises à jour
- Documentation : api-reference, architecture, local-setup, CLAUDE.md

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

shared/src/types/api-entry.types.ts

@@ -27,6 +27,7 @@ export interface ApiEntry {
   status: ApiStatus;
   errorMessage: string | null;
   categoryId: string | null;
+  isCurrent: boolean;
   contactFunctionalName: string;
   contactFunctionalEntity: string;
   contactFunctionalEmail: string;
@@ -48,6 +49,7 @@ export interface ApiEntryListItem {
   provider: string;
   status: ApiStatus;
   categoryId: string | null;
+  isCurrent: boolean;
   createdAt: string;
   updatedAt: string;
 }