Enforce Genarrative play-type SOP and update docs

Rewrite Genarrative play-type integration guidance across .codex and .hermes to define a platform-level SOP: default to form/image workbench, unify single-image asset slots (CreativeImageInputPanel), standardize series-material sheet->cut->transparent->OSS pipeline, and forbid copying legacy chat/agent workflows as the default. Add decision-log entry freezing the SOP and a pitfalls note warning against direct reuse of old play tools. Update CONTEXT.md and docs/README.md, add a new PRD file, and apply related small server-side changes (module-auth, spacetime-client mappers and runtime) to align back-end code with the new contracts and flows.

src/services/miniGameDraftGenerationProgress.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, test } from 'vitest';
 
 import {
   buildBabyObjectMatchGenerationAnchorEntries,
+  buildJumpHopGenerationAnchorEntries,
   buildMatch3DGenerationAnchorEntries,
   buildMiniGameDraftGenerationProgress,
   buildPuzzleGenerationAnchorEntries,
@@ -306,6 +307,54 @@ describe('miniGameDraftGenerationProgress', () => {
     ]);
   });
 
+  test('jump hop draft generation exposes character and tile atlas pipeline', () => {
+    const state = createMiniGameDraftGenerationState('jump-hop');
+
+    const progress = buildMiniGameDraftGenerationProgress(
+      state,
+      state.startedAtMs + 35_000,
+    );
+
+    expect(progress?.steps.map((step) => step.id)).toEqual([
+      'jump-hop-draft',
+      'jump-hop-character',
+      'jump-hop-tile-atlas',
+      'jump-hop-slice-tiles',
+      'jump-hop-write-draft',
+    ]);
+    expect(progress?.phaseId).toBe('jump-hop-character');
+    expect(progress?.phaseLabel).toBe('生成角色形象');
+    expect(progress?.estimatedRemainingMs).toBe(265_000);
+  });
+
+  test('jump hop generation anchors expose theme, character and tile style', () => {
+    const entries = buildJumpHopGenerationAnchorEntries(null, {
+      themeText: '云端糖果塔',
+      characterDescription: '披着星星披风的小旅人',
+      tileStyle: '纸模玩具',
+      difficulty: '标准',
+      rhythmPreference: '轻快',
+    });
+
+    expect(entries).toEqual([
+      {
+        id: 'jump-hop-theme',
+        label: '主题',
+        value: '云端糖果塔',
+      },
+      {
+        id: 'jump-hop-character',
+        label: '角色',
+        value: '披着星星披风的小旅人',
+      },
+      {
+        id: 'jump-hop-tile-style',
+        label: '地块',
+        value: '纸模玩具',
+      },
+    ]);
+  });
+
   test('puzzle generation anchors expose form payload as the display source', () => {
     const entries = buildPuzzleGenerationAnchorEntries({
       sessionId: 'puzzle-session-1',