feat(review): 人物塑造 advisory 审（第五审，仅建议不阻断验收）

写→审链新增第五审「人物塑造」（灵感③/D2）：advisory 单维——仅建议、不阻断
验收（不进 conflicts、不碰 assert_conflicts_resolved、不入 REVIEW_RESERVED_NAMES）；
只做人物塑造、不做氛围。

- SPEC characterization_spec（analyst，reads=("characters",)，writes=()）+
  prompts/characterization.md（只读、显式忽略文本长度与辞藻华丽度、引用逐字片段+置信度）
- schema CharacterizationReview{issues[...]}（全字段默认值守解析韧性）+ 注册 catalog
- 计数三处 22→23 + regen prompt_hashes.json（仅加一条）
- DB chapter_reviews 加 characterization JSONB nullable 列（迁移 f6a7b8c9d0e1）
- 接线：graph REVIEW_SPECS 追加 · chain ReviewRecordRepo · collect(extract/record) ·
  review_repo(Protocol/Sql/_to_view/ReviewView) · sse(event/factory/section) · normalize 自动纳入
- 契约 ReviewHistoryItem 加 characterization（gen:api 已重生成）
- 前端 sse/history/useReviewStream + CharacterizationPanel（只展示无裁决 UI、置信度降序+低置信折叠）+ ReviewReport 挂面板
- 测试 test_characterization_does_not_block_accept + 计数/golden + collect/normalize + 前端 reducer/normalize/parse

守不变量 #2/#3/#9；依赖 ⑧（motive/appearance 作客观锚点）。

apps/web/lib/review/history.test.ts

@@ -3,6 +3,7 @@ import { describe, expect, it } from "vitest";
 import type { ReviewConflictView, ReviewHistoryItem } from "@/lib/api/types";
 import {
   latestReview,
+  normalizeCharacterization,
   normalizeConflicts,
   normalizeForeshadowSug,
   normalizePace,
@@ -121,6 +122,62 @@ describe("normalizePace", () => {
   });
 });
 
+describe("normalizeCharacterization", () => {
+  it("tightens dict into CharacterizationReport with field defaults", () => {
+    const out = normalizeCharacterization({
+      ...item([]),
+      characterization: {
+        issues: [
+          {
+            character: "沈砚",
+            aspect: "动机一致性",
+            where: "第3段",
+            quote: "他忽然转身。",
+            diagnosis: "动机断裂",
+            suggestion: "扣回护妹动机",
+            confidence: 0.82,
+          },
+          // 缺字段的畸形条目：安全默认，不丢整条
+          { character: "阿黎" },
+        ],
+      },
+    });
+    expect(out).toEqual({
+      issues: [
+        {
+          character: "沈砚",
+          aspect: "动机一致性",
+          where: "第3段",
+          quote: "他忽然转身。",
+          diagnosis: "动机断裂",
+          suggestion: "扣回护妹动机",
+          confidence: 0.82,
+        },
+        {
+          character: "阿黎",
+          aspect: "",
+          where: "",
+          quote: "",
+          diagnosis: "",
+          suggestion: "",
+          confidence: 0,
+        },
+      ],
+    });
+  });
+
+  it("returns empty issues when characterization is present but issues missing", () => {
+    expect(
+      normalizeCharacterization({ ...item([]), characterization: {} }),
+    ).toEqual({ issues: [] });
+  });
+
+  it("returns null when characterization is missing or not a dict", () => {
+    expect(normalizeCharacterization(item([]))).toBeNull();
+    expect(normalizeCharacterization(undefined)).toBeNull();
+  });
+});
+
 describe("latestReview", () => {
   it("returns first item (history is newest-first)", () => {
     const a = item([]);