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

crates/backend/src/ticket_dto.rs

@@ -6,8 +6,8 @@ use serde::{Deserialize, Serialize};
 use uuid::Uuid;
 
 use application::{
-    BulkIssueMutationOutput, BulkUpdateIssuePriorityInput, BulkUpdateIssueStatusInput,
-    CreateIssueInput, UpdateIssueInput,
+    BulkDeleteIssuesInput, BulkIssueMutationOutput, BulkUpdateIssuePriorityInput,
+    BulkUpdateIssueStatusInput, CreateIssueInput, UpdateIssueInput,
 };
 use domain::{
     AgentId, AgentIssueRole, Issue, IssueActor, IssueCarnet, IssueIndexEntry, IssueLink,
@@ -225,6 +225,15 @@ pub struct TicketBulkUpdatePriorityRequestDto {
     pub priority: String,
 }
 
+/// Bulk delete request.
+#[derive(Debug, Clone, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct TicketBulkDeleteRequestDto {
+    #[serde(default)]
+    pub project_id: String,
+    pub refs: Vec<String>,
+}
+
 /// Bulk operation response.
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -757,6 +766,16 @@ pub fn bulk_update_priority_input(
     })
 }
 
+pub fn bulk_delete_input(
+    project: Project,
+    request: TicketBulkDeleteRequestDto,
+) -> Result<BulkDeleteIssuesInput, ErrorDto> {
+    Ok(BulkDeleteIssuesInput {
+        project,
+        issue_refs: parse_bulk_refs(request.refs)?,
+    })
+}
+
 impl From<BulkIssueMutationOutput> for TicketBulkResultDto {
     fn from(output: BulkIssueMutationOutput) -> Self {
         Self {
@@ -1272,6 +1291,27 @@ mod tests {
         assert!(err.message.contains("duplicate ticket ref: #1"));
     }
 
+    #[test]
+    fn bulk_delete_input_maps_refs_in_order() {
+        let input = bulk_delete_input(
+            project_for_tests(),
+            TicketBulkDeleteRequestDto {
+                project_id: String::new(),
+                refs: vec!["#2".into(), "#1".into()],
+            },
+        )
+        .unwrap();
+
+        assert_eq!(
+            input
+                .issue_refs
+                .iter()
+                .map(ToString::to_string)
+                .collect::<Vec<_>>(),
+            vec!["#2", "#1"]
+        );
+    }
+
     #[test]
     fn actor_from_requester_maps_agent_uuid_else_user() {
         let agent_id = AgentId::new_random();