bulk operations fixes

- Frontend: implémente bulkDelete, bulkArchive, bulkRestore
- Backend: adapts ticket DTOs pour bulk operations
- Infrastructure: MCP server pour gestion bulk tickets
- Tests: coverage frontend + backend

frontend/src/ports/index.ts

@@ -67,6 +67,7 @@ import type {
   Template,
   TerminalSession,
   Ticket,
+  TicketBulkResult,
   TicketChat,
   TicketCarnet,
   TicketLinkKind,
@@ -1067,6 +1068,20 @@ export interface TicketGateway {
    * of an open detail view. Callers must not mutate local state imperatively.
    */
   delete(projectId: string, ref: string): Promise<void>;
+  /** Updates several tickets' status in one command; partial failures are per item. */
+  bulkUpdateStatus(
+    projectId: string,
+    refs: string[],
+    status: TicketStatus,
+  ): Promise<TicketBulkResult>;
+  /** Updates several tickets' priority in one command; partial failures are per item. */
+  bulkUpdatePriority(
+    projectId: string,
+    refs: string[],
+    priority: TicketPriority,
+  ): Promise<TicketBulkResult>;
+  /** Deletes several tickets in one command; partial failures are per item. */
+  bulkDelete(projectId: string, refs: string[]): Promise<TicketBulkResult>;
   /** Reads the ticket-scoped Markdown carnet. */
   readCarnet(projectId: string, ref: string): Promise<TicketCarnet>;
   /** Replaces (not appends) the ticket-scoped carnet body. */