fix:更新算法

client/package.json

@@ -6,7 +6,8 @@
     "start": "expo start",
     "android": "expo run:android",
     "ios": "expo run:ios",
-    "web": "expo start --web"
+    "web": "expo start --web",
+    "test": "vitest run"
   },
   "dependencies": {
     "@expo/vector-icons": "^15.0.3",
@@ -41,7 +42,8 @@
     "@babel/plugin-transform-react-jsx": "^7.28.6",
     "@types/react": "~19.1.0",
     "react-test-renderer": "19.1.0",
-    "typescript": "~5.9.2"
+    "typescript": "~5.9.2",
+    "vitest": "^4.0.18"
   },
   "private": true
 }

client/src/constants/env.ts

@@ -26,8 +26,8 @@ export const API_BASE_URL = getRequiredEnv('EXPO_PUBLIC_API_BASE_URL');
 
 /**
  * 默认语言策略：
- * - auto：优先设备语言（支持列表内时），否则回退 zh-CN
- * - zh-CN/en/es/pt/zh-TW：固定默认语言（仍允许用户在设置中手动切换并持久化）
+ * - auto：优先设备语言（支持列表内时），否则回退 en
+ * - en/zh-TW：固定默认语言（仍允许用户在设置中手动切换并持久化）
  */
 export const DEFAULT_LANGUAGE = getOptionalEnv('EXPO_PUBLIC_DEFAULT_LANGUAGE', 'auto');
 

client/src/features/userProfileScoring/__tests__/scoring.test.ts

@@ -0,0 +1,70 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  buildUserProfileFromQuestionnaire,
+  computeProfileConfidence,
+  computeTimeConfidence,
+  normalizeAnswers,
+} from '../index';
+
+describe('userProfileScoring V1.2', () => {
+  it('normalizeAnswers: 非法值按跳过处理', () => {
+    // @ts-expect-error: 模拟非法输入
+    const out = normalizeAnswers({ mom_stage: 'xxx', emotion: 'yyy', context: 'zzz', need: 'ooo' });
+    expect(out).toEqual({ mom_stage: undefined, emotion: undefined, context: undefined, need: undefined });
+  });
+
+  it('computeTimeConfidence: 分段衰减', () => {
+    const gen = new Date('2026-01-01T00:00:00Z');
+
+    // 0–7 天：1.0
+    expect(computeTimeConfidence(gen, new Date('2026-01-05T00:00:00Z'))).toBe(1.0);
+
+    // 30 天以上：0.5
+    expect(computeTimeConfidence(gen, new Date('2026-02-15T00:00:00Z'))).toBe(0.5);
+  });
+
+  it('computeProfileConfidence: 完整度因子 + clamp', () => {
+    const confTime = 1.0;
+
+    // 全部跳过：completion=0 → completionFactor=0.5 → 0.5
+    expect(
+      computeProfileConfidence(confTime, { stage: false, emotion: false, context: false, need: false })
+    ).toBe(0.5);
+
+    // 全部作答：completion=1 → completionFactor=1 → 1
+    expect(computeProfileConfidence(confTime, { stage: true, emotion: true, context: true, need: true })).toBe(1.0);
+  });
+
+  it('buildUserProfileFromQuestionnaire: 全部跳过输出最小可计算画像', () => {
+    const p = buildUserProfileFromQuestionnaire({}, { generatedAt: '2026-01-30T00:00:00Z', now: '2026-01-30T00:00:00Z' });
+
+    expect(p.profile_version).toBe('v1.2');
+    expect(p.profile_source).toBe('questionnaire');
+
+    expect(p.profile_answered).toEqual({ stage: false, emotion: false, context: false, need: false });
+    expect(p.stage).toEqual({ unknown: 1 });
+    expect(p.emotion_score).toBeNull();
+    expect(p.context).toEqual({});
+    expect(p.need).toEqual({});
+
+    // conf_time=1，completionFactor=0.5
+    expect(p.profile_confidence).toBe(0.5);
+
+    // unknown 会命中 unsafe_for_stage_unknown，并带跨维度谓词
+    expect(p.hard_rules.forbidden_risk_flags).toContain('unsafe_for_stage_unknown');
+    expect(p.hard_rules.forbidden_content_predicates.some((x) => x.id === 'unknown_block_parenting_pressure_personalized')).toBe(
+      true
+    );
+  });
+
+  it('buildUserProfileFromQuestionnaire: emotion<=0.2 命中 unsafe_for_emotion_low', () => {
+    const p = buildUserProfileFromQuestionnaire(
+      { mom_stage: 'expecting', emotion: 'overwhelmed', context: 'health', need: 'anxiety_relief' },
+      { generatedAt: '2026-01-30T00:00:00Z', now: '2026-01-30T00:00:00Z' }
+    );
+    expect(p.emotion_score).toBe(0.2);
+    expect(p.hard_rules.forbidden_risk_flags).toContain('unsafe_for_emotion_low');
+  });
+});
+

client/src/features/userProfileScoring/index.ts

@@ -0,0 +1,15 @@
+export type {
+  BuildUserProfileOptions,
+  QuestionnaireAnswersV1_2,
+  UserProfileV1_2,
+  UserProfileV1_2_Extended,
+} from './types';
+
+export {
+  buildUserProfileFromQuestionnaire,
+  computeProfileAnswered,
+  computeProfileConfidence,
+  computeTimeConfidence,
+  normalizeAnswers,
+} from './scoring';
+

client/src/features/userProfileScoring/scoring.ts

@@ -0,0 +1,233 @@
+/**
+ * 用户画像打分（User Profile Scoring）V1.2
+ *
+ * 规则来源：
+ * - `spec_kit/User Profile Scoring/spec.md`
+ * - `设计说明文档/客戶端問卷打分規則.md`（V1.2）
+ */
+
+import type {
+  BuildUserProfileOptions,
+  ContextAnswer,
+  EmotionAnswer,
+  HardRules,
+  MomStageAnswer,
+  NeedAnswer,
+  ProfileAnswered,
+  QuestionnaireAnswersV1_2,
+  SparseOneHot,
+  UserProfileV1_2_Extended,
+  UserStageOneHot,
+} from './types';
+
+const MS_PER_DAY = 24 * 60 * 60 * 1000;
+
+function clamp(value: number, min: number, max: number): number {
+  if (!Number.isFinite(value)) return min;
+  return Math.min(max, Math.max(min, value));
+}
+
+function toDate(value: Date | string | undefined): Date | null {
+  if (!value) return null;
+  if (value instanceof Date) return Number.isFinite(value.getTime()) ? value : null;
+  const d = new Date(value);
+  return Number.isFinite(d.getTime()) ? d : null;
+}
+
+function isMomStageAnswer(v: unknown): v is MomStageAnswer {
+  return v === 'expecting' || v === 'parenting' || v === 'unknown';
+}
+
+function isEmotionAnswer(v: unknown): v is EmotionAnswer {
+  return (
+    v === 'low' ||
+    v === 'overwhelmed' ||
+    v === 'tired' ||
+    v === 'neutral' ||
+    v === 'calm' ||
+    v === 'joyful'
+  );
+}
+
+function isContextAnswer(v: unknown): v is ContextAnswer {
+  return v === 'family' || v === 'work' || v === 'relationship' || v === 'friends' || v === 'health';
+}
+
+function isNeedAnswer(v: unknown): v is NeedAnswer {
+  return (
+    v === 'emotional_support' ||
+    v === 'parenting_pressure' ||
+    v === 'self_worth' ||
+    v === 'anxiety_relief' ||
+    v === 'rest_balance'
+  );
+}
+
+/**
+ * 归一化答案：非法值按“跳过”处理（归一化为 undefined）
+ * - `null` 保留，表示显式跳过/无值
+ */
+export function normalizeAnswers(raw: QuestionnaireAnswersV1_2): QuestionnaireAnswersV1_2 {
+  const mom_stage =
+    raw.mom_stage === null ? null : isMomStageAnswer(raw.mom_stage) ? raw.mom_stage : undefined;
+  const emotion = raw.emotion === null ? null : isEmotionAnswer(raw.emotion) ? raw.emotion : undefined;
+  const context = raw.context === null ? null : isContextAnswer(raw.context) ? raw.context : undefined;
+  const need = raw.need === null ? null : isNeedAnswer(raw.need) ? raw.need : undefined;
+
+  return { mom_stage, emotion, context, need };
+}
+
+export function computeProfileAnswered(normalized: QuestionnaireAnswersV1_2): ProfileAnswered {
+  return {
+    stage: normalized.mom_stage !== undefined && normalized.mom_stage !== null,
+    emotion: normalized.emotion !== undefined && normalized.emotion !== null,
+    context: normalized.context !== undefined && normalized.context !== null,
+    need: normalized.need !== undefined && normalized.need !== null,
+  };
+}
+
+/**
+ * 时间衰减置信度（conf_time）
+ * - 0–7 天：1.0
+ * - 7–30 天：线性衰减到 0.7（含第 30 天）
+ * - 30 天以上：0.5
+ */
+export function computeTimeConfidence(generatedAt: Date, now: Date): number {
+  const deltaMs = now.getTime() - generatedAt.getTime();
+  if (!Number.isFinite(deltaMs) || deltaMs <= 0) return 1.0;
+
+  const days = deltaMs / MS_PER_DAY;
+  if (days <= 7) return 1.0;
+  if (days <= 30) {
+    const t = (days - 7) / (30 - 7); // 0..1
+    return 1.0 - 0.3 * t; // 1 -> 0.7
+  }
+  return 0.5;
+}
+
+/**
+ * V1.2：profile_confidence（conf_U）
+ * conf = clamp(conf_time * (0.5 + 0.5 * completion), 0.2, 1.0)
+ */
+export function computeProfileConfidence(confTime: number, answered: ProfileAnswered): number {
+  const answeredCount =
+    (answered.stage ? 1 : 0) + (answered.emotion ? 1 : 0) + (answered.context ? 1 : 0) + (answered.need ? 1 : 0);
+  const completion = answeredCount / 4;
+  const completionFactor = 0.5 + 0.5 * completion;
+  return clamp(confTime * completionFactor, 0.2, 1.0);
+}
+
+function buildStageOneHot(momStage: MomStageAnswer | null | undefined): UserStageOneHot {
+  // V1.2：mom_stage 跳过按安全策略输出 unknown=1
+  if (momStage === null || momStage === undefined) {
+    return { unknown: 1 };
+  }
+
+  return {
+    expecting: momStage === 'expecting' ? 1 : 0,
+    parenting: momStage === 'parenting' ? 1 : 0,
+    unknown: momStage === 'unknown' ? 1 : 0,
+  };
+}
+
+function mapEmotionScore(emotion: EmotionAnswer | null | undefined): number | null {
+  if (emotion === null || emotion === undefined) return null;
+  switch (emotion) {
+    case 'low':
+      return 0.0;
+    case 'overwhelmed':
+      return 0.2;
+    case 'tired':
+      return 0.4;
+    case 'neutral':
+      return 0.6;
+    case 'calm':
+      return 0.8;
+    case 'joyful':
+      return 1.0;
+  }
+}
+
+function buildSparseOneHot(value: string | null | undefined): SparseOneHot {
+  if (value === null || value === undefined) return {};
+  return { [value]: 1 };
+}
+
+function computeRuleHitsAndHardRules(profile: {
+  stage: UserStageOneHot;
+  emotion_score: number | null;
+}): { rule_hits: string[]; hard_rules: HardRules } {
+  const rule_hits: string[] = [];
+  const forbidden_risk_flags: string[] = [];
+
+  const stageUnknown = profile.stage.unknown === 1;
+  const stageParenting = profile.stage.parenting === 1;
+
+  if (stageUnknown) {
+    rule_hits.push('unsafe_for_stage_unknown');
+    forbidden_risk_flags.push('unsafe_for_stage_unknown');
+  }
+
+  if (stageParenting) {
+    rule_hits.push('unsafe_for_stage_parenting');
+    forbidden_risk_flags.push('unsafe_for_stage_parenting');
+  }
+
+  if (profile.emotion_score !== null && profile.emotion_score <= 0.2) {
+    rule_hits.push('unsafe_for_emotion_low');
+    forbidden_risk_flags.push('unsafe_for_emotion_low');
+  }
+
+  const forbidden_content_predicates = [];
+  if (stageUnknown) {
+    forbidden_content_predicates.push({
+      id: 'unknown_block_parenting_pressure_personalized',
+      when_user: { stage_unknown: true },
+      forbid_content: { need: 'parenting_pressure', personalization_power: 1 },
+    });
+  }
+
+  return {
+    rule_hits,
+    hard_rules: {
+      forbidden_risk_flags,
+      forbidden_content_predicates,
+    },
+  };
+}
+
+export function buildUserProfileFromQuestionnaire(
+  rawAnswers: QuestionnaireAnswersV1_2,
+  options: BuildUserProfileOptions = {}
+): UserProfileV1_2_Extended {
+  const normalized = normalizeAnswers(rawAnswers);
+  const profile_answered = computeProfileAnswered(normalized);
+
+  const now = toDate(options.now) ?? new Date();
+  const generatedAt = toDate(options.generatedAt) ?? now;
+
+  const confTime = computeTimeConfidence(generatedAt, now);
+  const profile_confidence = computeProfileConfidence(confTime, profile_answered);
+
+  const stage = buildStageOneHot(normalized.mom_stage);
+  const emotion_score = mapEmotionScore(normalized.emotion);
+  const context = buildSparseOneHot(normalized.context);
+  const need = buildSparseOneHot(normalized.need);
+
+  const { rule_hits, hard_rules } = computeRuleHitsAndHardRules({ stage, emotion_score });
+
+  return {
+    profile_version: 'v1.2',
+    profile_source: 'questionnaire',
+    profile_generated_at: generatedAt.toISOString(),
+    profile_confidence,
+    profile_answered,
+    stage,
+    emotion_score,
+    context,
+    need,
+    rule_hits,
+    hard_rules,
+  };
+}
+

client/src/features/userProfileScoring/types.ts

@@ -0,0 +1,95 @@
+/**
+ * 用户画像打分（User Profile Scoring）V1.2 类型定义
+ *
+ * 说明：
+ * - 本模块用于：问卷答案（可跳过）→ 用户画像（可计算、可观测、可版本化）
+ * - 字段与规则以 `spec_kit/User Profile Scoring/spec.md`（V1.2）为准
+ */
+
+export type MomStageAnswer = 'expecting' | 'parenting' | 'unknown';
+export type EmotionAnswer = 'low' | 'overwhelmed' | 'tired' | 'neutral' | 'calm' | 'joyful';
+export type ContextAnswer = 'family' | 'work' | 'relationship' | 'friends' | 'health';
+export type NeedAnswer =
+  | 'emotional_support'
+  | 'parenting_pressure'
+  | 'self_worth'
+  | 'anxiety_relief'
+  | 'rest_balance';
+
+/**
+ * V1.2：每题可跳过
+ * - `undefined`：字段缺失（可能是“没传”）
+ * - `null`：显式跳过/无值（例如 UI 明确传 null）
+ */
+export type QuestionnaireAnswersV1_2 = {
+  mom_stage?: MomStageAnswer | null;
+  emotion?: EmotionAnswer | null;
+  context?: ContextAnswer | null;
+  need?: NeedAnswer | null;
+};
+
+export type ProfileAnswered = {
+  stage: boolean;
+  emotion: boolean;
+  context: boolean;
+  need: boolean;
+};
+
+export type UserStageOneHot = {
+  expecting?: 0 | 1;
+  parenting?: 0 | 1;
+  unknown: 0 | 1;
+};
+
+export type SparseOneHot = Record<string, 1>;
+
+export type UserProfileV1_2 = {
+  profile_version: 'v1.2';
+  profile_source: 'questionnaire';
+  profile_generated_at: string; // ISO8601
+  profile_confidence: number; // 0–1
+  profile_answered: ProfileAnswered;
+  stage: UserStageOneHot;
+  emotion_score: number | null;
+  context: SparseOneHot;
+  need: SparseOneHot;
+};
+
+export type ForbiddenContentPredicate = {
+  /**
+   * 谓词 ID：用于可观测与回归测试
+   */
+  id: string;
+  /**
+   * 触发条件（用户侧）
+   * 说明：这里刻意保持为 object，便于未来接入规则引擎时做 schema 对齐。
+   */
+  when_user: Record<string, unknown>;
+  /**
+   * 禁推条件（内容侧）
+   * 说明：本模块不判断内容的 `personalization_power`，只输出可执行条件。
+   */
+  forbid_content: Record<string, unknown>;
+};
+
+export type HardRules = {
+  forbidden_risk_flags: string[];
+  forbidden_content_predicates: ForbiddenContentPredicate[];
+};
+
+export type UserProfileV1_2_Extended = UserProfileV1_2 & {
+  rule_hits: string[];
+  hard_rules: HardRules;
+};
+
+export type BuildUserProfileOptions = {
+  /**
+   * 画像生成时间；不传则使用当前时间
+   */
+  generatedAt?: Date | string;
+  /**
+   * 当前时间（用于计算 time decay）；不传则使用当前时间
+   */
+  now?: Date | string;
+};
+

client/src/i18n/index.ts

@@ -4,30 +4,21 @@ import i18n from 'i18next';
 import { initReactI18next } from 'react-i18next';
 
 import en from './locales/en.json';
-import es from './locales/es.json';
-import pt from './locales/pt.json';
-import zhCN from './locales/zh-CN.json';
 import zhTW from './locales/zh-TW.json';
 
 /**
  * 语言码约定：
- * - 简体中文：zh-CN
  * - 繁体中文：zh-TW
  * - 英语：en
- * - 西班牙语：es
- * - 葡萄牙语：pt
  */
-export type AppLanguage = 'zh-CN' | 'zh-TW' | 'en' | 'es' | 'pt';
+export type AppLanguage = 'zh-TW' | 'en';
 
 export const SUPPORTED_LANGUAGES: readonly AppLanguage[] = [
-  'zh-CN',
   'zh-TW',
   'en',
-  'es',
-  'pt',
 ] as const;
 
-const DEFAULT_FALLBACK_LANGUAGE: AppLanguage = 'zh-CN';
+const DEFAULT_FALLBACK_LANGUAGE: AppLanguage = 'en';
 const STORAGE_KEY_LANGUAGE = 'settings.language';
 
 function isSupportedLanguage(lang: string): lang is AppLanguage {
@@ -37,19 +28,13 @@ function isSupportedLanguage(lang: string): lang is AppLanguage {
 function normalizeDeviceLanguageTagToAppLanguage(languageTag: string): AppLanguage {
   const tag = languageTag.toLowerCase();
 
-  // 中文：优先区分繁简
+  // 中文：当前仅支持繁体中文（zh-TW）
   if (tag.startsWith('zh')) {
-    // 常见繁体标记：zh-TW / zh-HK / zh-Hant
-    if (tag.includes('tw') || tag.includes('hk') || tag.includes('hant')) {
-      return 'zh-TW';
-    }
-    return 'zh-CN';
+    return 'zh-TW';
   }
 
-  // 其他语言：按前缀匹配
+  // 其他语言：按前缀匹配（当前仅支持英文）
   if (tag.startsWith('en')) return 'en';
-  if (tag.startsWith('es')) return 'es';
-  if (tag.startsWith('pt')) return 'pt';
 
   return DEFAULT_FALLBACK_LANGUAGE;
 }
@@ -87,7 +72,7 @@ export async function clearLanguagePreference(): Promise<void> {
  * 语言选择优先级：
  * 1) 用户设置（若存在）
  * 2) 设备语言（在支持列表内时生效；否则会被 normalize 到默认回退）
- * 3) 默认回退（zh-CN）
+  * 3) 默认回退（en）
  */
 export async function initI18n(): Promise<void> {
   if (i18n.isInitialized) return;
@@ -98,11 +83,8 @@ export async function initI18n(): Promise<void> {
 
   await i18n.use(initReactI18next).init({
     resources: {
-      'zh-CN': { translation: zhCN },
       'zh-TW': { translation: zhTW },
       en: { translation: en },
-      es: { translation: es },
-      pt: { translation: pt },
     },
     lng: initialLang,
     fallbackLng: DEFAULT_FALLBACK_LANGUAGE,