feat: add puzzle onboarding and match3d entry updates

packages/shared/src/contracts/puzzleOnboarding.ts

@@ -0,0 +1,16 @@
+import type { PuzzleDraftLevel } from './puzzleAgentDraft';
+import type { PuzzleWorkSummary } from './puzzleWorkSummary';
+
+export interface PuzzleOnboardingGenerateRequest {
+  promptText: string;
+}
+
+export interface PuzzleOnboardingGenerateResponse {
+  item: PuzzleWorkSummary;
+  level: PuzzleDraftLevel;
+}
+
+export interface PuzzleOnboardingSaveRequest {
+  promptText: string;
+  item: PuzzleWorkSummary;
+}