chore: commit sisyphus evidence and CI/CD artifacts

.sisyphus/notepads/self-assign-shift-task-fix/decisions.md

@@ -0,0 +1,46 @@
+# Decisions - Self-Assignment Bug Fix
+
+## Architectural Choices
+
+*(To be populated as work progresses)*
+
+## Trade-offs Made
+
+*(To be populated as work progresses)*
+
+## T3: Contract Parity Decision (2026-03-08)
+
+**Decision**: Task self-assignment will use existing `useUpdateTask` mutation with `assigneeId` field.
+
+**Rationale**:
+1. **UpdateTaskRequest Interface** already includes `assigneeId?: string` field (line 45)
+2. **useUpdateTask Mutation** accepts arbitrary UpdateTaskRequest fields via PATCH /api/tasks/{id}
+3. **Shift Pattern** uses implicit self-assignment via POST /signup, but tasks require explicit assigneeId
+4. **Member Role Assumption**: No frontend restrictions observed on member role updating assigneeId
+
+**Implementation Pattern** (for T7):
+```typescript
+// Detection pattern (similar to shift isSignedUp)
+const isAssignedToMe = task.assigneeId === session?.user?.id;
+
+// Self-assignment action (via useUpdateTask)
+await updateTaskMutation.mutateAsync({
+  id: task.id,
+  data: { assigneeId: session.user.id }
+});
+
+// Unassignment action
+await updateTaskMutation.mutateAsync({
+  id: task.id,
+  data: { assigneeId: null }
+});
+```
+
+**Backend Verification Required** (T8):
+- Confirm PATCH /api/tasks/{id} permits member role to set assigneeId to self
+- Verify no policy restrictions on member role task assignment
+- Document any backend adjustments needed
+
+**Evidence Files**:
+- `.sisyphus/evidence/task-3-contract-parity.txt` (contract analysis)
+- `.sisyphus/evidence/task-3-contract-mismatch.txt` (empty - no mismatches found)