docs(readme): refresh screenshots for the RPG suite

README.md

@@ -26,13 +26,19 @@ Covel is an AI RPG where the world keeps running between your turns: NPCs track
 
 ## Two ways to play
 
-|                                 Stage mode (visual novel)                                  |                                     Story mode (text)                                      |
-| :----------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------: |
-|                   ![Stage mode](./.assets/images/readme/stage-mode.png)                    |                    ![Story mode](./.assets/images/readme/text-mode.png)                    |
-| Backdrops, sprites, and typewriter dialog; scene art resolves and generates as you explore | Classic narrated turns with inline choices, forms, and the per-turn agent timeline visible |
+|                                 Stage mode (visual novel)                                  |                                      Story mode (text)                                       |
+| :----------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------: |
+|                   ![Stage mode](./.assets/images/readme/stage-mode.png)                    |                     ![Story mode](./.assets/images/readme/text-mode.png)                     |
+| Backdrops, sprites, and typewriter dialog; scene art resolves and generates as you explore | Classic narrated turns with suggested actions, inline forms, and the per-turn agent timeline |
 
 Worlds declare their default (`defaultViewMode: stage`); you can switch any time in-session.
 
+## Every roll leaves a receipt
+
+![A dice check, quest progress, and a gear change posting into the turn, with the quest log open alongside](./.assets/images/readme/rpg-systems.png)
+
+A risky action resolves against dice rolled **before** the narrator writes, so the outcome cannot be retconned to fit the prose — and the arithmetic posts inline: `19 + 2 = 21 vs DC 16`. Quest progress, gear changes, and affinity shifts land in the turn the same way, then accumulate into their own panels. Dice, quests, inventory, and affinity are four separate plugins; a world seeds the opening quests, starting gear, and initial affinity, or ships without any of them.
+
 ## What the agents leave behind
 
 ![Core memory panel](./.assets/images/readme/memory-panel.png)

README.zh-CN.md

@@ -26,13 +26,19 @@ Covel 是一款 AI 驱动的 RPG，回合之间世界仍在运转：NPC 记录
 
 ## 两种玩法
 
-|                 舞台模式（视觉小说）                 |                     叙事模式（文字）                      |
-| :--------------------------------------------------: | :-------------------------------------------------------: |
-| ![舞台模式](./.assets/images/readme/stage-mode.png)  |    ![叙事模式](./.assets/images/readme/text-mode.png)     |
-| 背景、立绘与打字机对话；场景美术随探索自动解析与生成 | 经典叙事回合，内嵌选择肢与表单，每回合的 agent 时间线可见 |
+|                 舞台模式（视觉小说）                 |                      叙事模式（文字）                       |
+| :--------------------------------------------------: | :---------------------------------------------------------: |
+| ![舞台模式](./.assets/images/readme/stage-mode.png)  |     ![叙事模式](./.assets/images/readme/text-mode.png)      |
+| 背景、立绘与打字机对话；场景美术随探索自动解析与生成 | 经典叙事回合，内嵌行动建议与表单，每回合的 agent 时间线可见 |
 
 世界声明自己的默认档（`defaultViewMode: stage`），游戏中可随时切换。
 
+## 每一次判定都有回执
+
+![判定回执、任务推进与装备变动落在这一回合里，右侧是任务日志](./.assets/images/readme/rpg-systems.png)
+
+有风险的行动，判定用的骰子在叙事**动笔之前**就已经掷好，结果不会被行文倒推改写 —— 算式直接落在正文里：`19 + 2 = 21 vs DC 16`。任务推进、装备变动、好感升降也以同样方式回执在这一回合里，再沉淀进各自的面板。骰子、任务、行囊、好感是四个独立插件；世界包预置开局任务、初始装备与初始好感，也可以一个都不装。
+
 ## agent 在后台留下了什么
 
 ![核心记忆面板](./.assets/images/readme/memory-panel.png)