引入游玩呈现壳与旁观维护槽，完善结算合并、十分制自评与技能产物 UI。

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/present-packet.test.ts

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+import { describe, expect, it } from "vitest";
+import {
+  isPresentLikeObject,
+  parsePresentPacket,
+  parseShellAdaptationFromReplyFormat,
+  presentFromPlainText,
+  shellDefaultRegions,
+} from "../src/skills/present-packet.js";
+
+describe("present.v1", () => {
+  it("parses present packet with blocks", () => {
+    const view = parsePresentPacket(
+      JSON.stringify({
+        schema: "present.v1",
+        shell: "chat_monitor",
+        blocks: {
+          monitor: { 好感: "暖络" },
+          body: "她回了一句短谢。",
+        },
+        meta: { suggested_actions: ["回一句关心"] },
+      }),
+    );
+    expect(view.ok).toBe(true);
+    expect(view.fallbackPlain).toBe(false);
+    expect(view.packet.shell).toBe("chat_monitor");
+    expect(view.packet.blocks.body).toContain("短谢");
+    expect(view.packet.meta?.suggested_actions?.[0]).toBe("回一句关心");
+  });
+
+  it("falls back plain text to prose body", () => {
+    const view = parsePresentPacket("林晚点头收下了画册。");
+    expect(view.fallbackPlain).toBe(true);
+    expect(view.packet.shell).toBe("prose");
+    expect(view.packet.blocks.body).toContain("画册");
+  });
+
+  it("does not treat settlement as present", () => {
+    const view = parsePresentPacket(
+      JSON.stringify({
+        schema: "settlement.v1",
+        visible_now: "场面",
+        player_action: "送礼",
+      }),
+    );
+    expect(view.fallbackPlain).toBe(true);
+    expect(isPresentLikeObject({ schema: "settlement.v1" })).toBe(false);
+  });
+
+  it("presentFromPlainText helper", () => {
+    const p = presentFromPlainText("hello", "chapter_reader");
+    expect(p.shell).toBe("chapter_reader");
+    expect(p.blocks.body).toBe("hello");
+  });
+});
+
+describe("shell adaptation from reply-format", () => {
+  it("reads 呈现壳 from context-fragment", () => {
+    const adapt = parseShellAdaptationFromReplyFormat(
+      JSON.stringify({
+        schema: "context-fragment.v1",
+        技能: "正文组成",
+        正文: {
+          呈现壳: {
+            shell_id: "turn_panel",
+            为何选它: "机制重",
+            微调: {
+              tone_chrome: "terminal",
+              show_suggested_actions: true,
+              block_labels: { body: "场面" },
+            },
+          },
+          可见块: [{ 块id: "body", 区域: "body" }],
+        },
+      }),
+    );
+    expect(adapt?.shell_id).toBe("turn_panel");
+    expect(adapt?.tweaks.tone_chrome).toBe("terminal");
+    expect(adapt?.tweaks.block_labels?.body).toBe("场面");
+    expect(shellDefaultRegions("turn_panel")).toContain("footer");
+  });
+
+  it("defaults missing shell to prose", () => {
+    const adapt = parseShellAdaptationFromReplyFormat(
+      JSON.stringify({
+        schema: "context-fragment.v1",
+        正文: { 可见块: [{ 块id: "body" }] },
+      }),
+    );
+    expect(adapt?.shell_id).toBe("prose");
+  });
+});