Merge story-31: View Upcoming Stories

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

# Conflicts:
#	frontend/src/api/workflow.ts
#	frontend/src/components/Chat.test.tsx
#	frontend/src/components/Chat.tsx
#	server/src/http/workflow.rs

frontend/src/App.test.tsx

@@ -40,6 +40,7 @@ vi.mock("./api/workflow", () => {
 				missing_categories: [],
 			}),
 			getReviewQueueAll: vi.fn().mockResolvedValue({ stories: [] }),
+			getUpcomingStories: vi.fn().mockResolvedValue({ stories: [] }),
 			recordTests: vi.fn(),
 			ensureAcceptance: vi.fn(),
 			getReviewQueue: vi.fn(),