feat(core,cli,server,web): add goal mode — loop Tasks on one Session until an objective completes (#66)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

packages/web/src/api/endpoints.ts

@@ -25,6 +25,7 @@ import type {
   DirListResponse,
   FilesStatRequest,
   FilesStatResponse,
+  GoalResponse,
   MeResponse,
   MemberAddRequest,
   MemberAddResponse,
@@ -255,6 +256,9 @@ export const postTask = (sessionId: string, body: TaskCreateRequest) =>
     body,
   });
 
+export const getGoal = (sessionId: string) =>
+  apiFetch<GoalResponse>(`/api/sessions/${encodeURIComponent(sessionId)}/goal`);
+
 export const postApproval = (
   sessionId: string,
   toolCallId: string,