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/sse.ts

@@ -60,6 +60,22 @@ export interface StyleDriftReport {
   segments: StyleDriftSegment[];
 }
 
+// 人物塑造（灵感③ advisory 单维）：只读建议，不阻断验收（无裁决 UI）。
+// 以人物卡 motive/appearance 为客观锚点；每条带逐字引用 quote + 置信度 confidence。
+export interface CharacterizationIssue {
+  character: string;
+  aspect: string;
+  where: string;
+  quote: string;
+  diagnosis: string;
+  suggestion: string;
+  confidence: number;
+}
+
+export interface CharacterizationReport {
+  issues: CharacterizationIssue[];
+}
+
 export interface SectionEvent {
   event: "section";
   data: { name: string; status: SectionStatus };
@@ -98,6 +114,10 @@ export interface StyleEvent {
     }[];
   };
 }
+export interface CharacterizationEvent {
+  event: "characterization";
+  data: { issues: CharacterizationIssue[] };
+}
 export interface DoneEvent {
   event: "done";
   data: { length: number };
@@ -112,6 +132,7 @@ export type ReviewSseEvent =
   | ForeshadowEvent
   | PaceEvent
   | StyleEvent
+  | CharacterizationEvent
   | DoneEvent
   | ErrorEvent;
 
@@ -121,6 +142,7 @@ const KNOWN_EVENTS = new Set([
   "foreshadow",
   "pace",
   "style",
+  "characterization",
   "done",
   "error",
 ]);
@@ -176,6 +198,34 @@ function asPaceIssues(v: unknown): PaceIssue[] {
   );
 }
 
+function asNumber(v: unknown, fallback = 0): number {
+  return typeof v === "number" && Number.isFinite(v) ? v : fallback;
+}
+
+function asStringField(v: unknown): string {
+  return typeof v === "string" ? v : "";
+}
+
+// 收窄人物塑造 issues（每字段安全默认，advisory 韧性；缺字段不丢整条）。
+export function asCharacterizationIssues(v: unknown): CharacterizationIssue[] {
+  if (!Array.isArray(v)) return [];
+  return v.flatMap((x) =>
+    isRecord(x)
+      ? [
+          {
+            character: asStringField(x.character),
+            aspect: asStringField(x.aspect),
+            where: asStringField(x.where),
+            quote: asStringField(x.quote),
+            diagnosis: asStringField(x.diagnosis),
+            suggestion: asStringField(x.suggestion),
+            confidence: asNumber(x.confidence),
+          },
+        ]
+      : [],
+  );
+}
+
 function asStyleSegments(v: unknown): StyleEvent["data"]["segments"] {
   if (!Array.isArray(v)) return [];
   return v.flatMap((x) =>
@@ -248,6 +298,11 @@ function narrowReviewEvent(event: string, data: unknown): ReviewSseEvent | null
             },
           }
         : null;
+    case "characterization":
+      return {
+        event: "characterization",
+        data: { issues: asCharacterizationIssues(data.issues) },
+      };
     case "done":
       return typeof data.length === "number"
         ? { event: "done", data: { length: data.length } }
@@ -320,6 +375,7 @@ export interface ReviewStreamState {
   foreshadow: ForeshadowSuggestion[];
   pace: PaceReport | null;
   style: StyleDriftReport | null;
+  characterization: CharacterizationReport | null;
   error: { code: string; message: string; request_id?: string | null } | null;
 }
 
@@ -330,6 +386,7 @@ export const initialReviewState: ReviewStreamState = {
   foreshadow: [],
   pace: null,
   style: null,
+  characterization: null,
   error: null,
 };
 
@@ -377,6 +434,12 @@ export function reduceReview(
           })),
         },
       };
+    case "characterization":
+      return {
+        ...state,
+        phase: "reviewing",
+        characterization: { issues: event.data.issues.map((i) => ({ ...i })) },
+      };
     case "done":
       return { ...state, phase: "done" };
     case "error":