feat(ECR-011): 昵称、首页贴士与档案 Self 唯一/合盘交叉校验

每账号仅一条 self（migration 40902）；合盘只选 TA；账号昵称可改；首页穿衣/颜色/养生贴士。

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

apps/api/internal/service/auth/service.go

@@ -12,6 +12,7 @@ import (
 	"github.com/jackc/pgx/v5"
 	"golang.org/x/crypto/bcrypt"
 
+	nickgen "github.com/yuxingu/digital-psychology/apps/api/internal/nickname"
 	"github.com/yuxingu/digital-psychology/apps/api/internal/repository"
 )
 
@@ -46,12 +47,12 @@ func (s *Service) Login(ctx context.Context, userID uuid.UUID, deviceKey, phone,
 }
 
 // OpenLogin: any phone+password accepted; persist account; issue session.
-func (s *Service) OpenLogin(ctx context.Context, deviceUserID uuid.UUID, deviceKey, phone, password, nickname string) (*SessionResult, error) {
+func (s *Service) OpenLogin(ctx context.Context, deviceUserID uuid.UUID, deviceKey, phone, password, nickIn string) (*SessionResult, error) {
 	phone = strings.TrimSpace(phone)
 	if phone == "" {
 		return nil, errors.New("请填写手机号")
 	}
-	nickname = strings.TrimSpace(nickname)
+	nickIn = nickgen.Normalize(nickIn)
 	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
 	if err != nil {
 		return nil, err
@@ -65,8 +66,12 @@ func (s *Service) OpenLogin(ctx context.Context, deviceUserID uuid.UUID, deviceK
 			_ = s.Repo.BindDevice(ctx, deviceKey, acc.ID)
 		}
 		nick := acc.Nickname
-		if nickname != "" {
-			nick = nickname
+		if nickIn != "" {
+			nick = nickIn
+			_ = s.Repo.UpdateNickname(ctx, acc.ID, nick)
+		} else if nick == "" {
+			nick = nickgen.Random()
+			_ = s.Repo.UpdateNickname(ctx, acc.ID, nick)
 		}
 		return s.issue(ctx, acc.ID, acc.Phone, nick)
 	}
@@ -74,15 +79,19 @@ func (s *Service) OpenLogin(ctx context.Context, deviceUserID uuid.UUID, deviceK
 		return nil, err
 	}
 
-	// New phone: prefer upgrading anonymous device user.
+	nick := nickIn
+	if nick == "" {
+		nick = nickgen.Random()
+	}
+
 	cur, curErr := s.Repo.GetAccount(ctx, deviceUserID)
 	uid := deviceUserID
 	if curErr == nil && cur.Phone == "" {
-		if err := s.Repo.RegisterOnUser(ctx, deviceUserID, phone, hashStr, nickname); err != nil {
+		if err := s.Repo.RegisterOnUser(ctx, deviceUserID, phone, hashStr, nick); err != nil {
 			return nil, errors.New("登录失败，请重试")
 		}
 	} else {
-		uid, err = s.Repo.CreateUserWithPhone(ctx, phone, hashStr, nickname)
+		uid, err = s.Repo.CreateUserWithPhone(ctx, phone, hashStr, nick)
 		if err != nil {
 			return nil, errors.New("登录失败，请重试")
 		}
@@ -90,7 +99,26 @@ func (s *Service) OpenLogin(ctx context.Context, deviceUserID uuid.UUID, deviceK
 	if deviceKey != "" {
 		_ = s.Repo.BindDevice(ctx, deviceKey, uid)
 	}
-	return s.issue(ctx, uid, phone, nickname)
+	return s.issue(ctx, uid, phone, nick)
+}
+
+// UpdateNickname changes account display nickname (1–16 chars).
+func (s *Service) UpdateNickname(ctx context.Context, userID uuid.UUID, nick string) (*Me, error) {
+	nick = nickgen.Normalize(nick)
+	if nick == "" {
+		return nil, errors.New("请填写昵称")
+	}
+	if err := s.Repo.UpdateNickname(ctx, userID, nick); err != nil {
+		return nil, err
+	}
+	acc, err := s.Repo.GetAccount(ctx, userID)
+	if err != nil {
+		return nil, err
+	}
+	if acc.Phone == "" {
+		return nil, errors.New("未登录")
+	}
+	return &Me{ID: acc.ID.String(), Phone: maskPhone(acc.Phone), Nickname: acc.Nickname}, nil
 }
 
 // Logout revokes the current bearer session and unbinds the device from the account

apps/api/internal/service/home/daily_tips.go

@@ -0,0 +1,217 @@
+package home
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"strings"
+	"sync"
+	"time"
+	"unicode/utf8"
+
+	"github.com/google/uuid"
+
+	"github.com/yuxingu/digital-psychology/apps/api/internal/llm/deepseek"
+	"github.com/yuxingu/digital-psychology/apps/api/internal/model"
+	"github.com/yuxingu/digital-psychology/apps/api/internal/yijing"
+)
+
+// ColorChip is one palette swatch.
+type ColorChip struct {
+	Name string `json:"name"`
+	Hex  string `json:"hex"`
+}
+
+// DailyTips is homepage self-card lifestyle tips.
+type DailyTips struct {
+	ClothingIndex int         `json:"clothing_index"`
+	Clothing      string      `json:"clothing"`
+	ColorNote     string      `json:"color_note"`
+	Palette       []ColorChip `json:"palette"`
+	Wellness      string      `json:"wellness"`
+	Source        string      `json:"source"` // llm | fallback
+	GuaName       string      `json:"gua_name,omitempty"`
+	DayPart       string      `json:"day_part,omitempty"`
+	NeedBirth     bool        `json:"need_birth"`
+}
+
+type tipsCacheEntry struct {
+	tips DailyTips
+	exp  time.Time
+}
+
+var tipsCache sync.Map // key string → tipsCacheEntry
+
+// DailyTips returns personalized tips; falls back when LLM / profile unavailable.
+func (s *Service) DailyTips(ctx context.Context, userID uuid.UUID) (*DailyTips, error) {
+	now := time.Now()
+	self, ok := s.findSelf(ctx, userID)
+	if !ok {
+		fb := fallbackTips(now, "", nil)
+		fb.NeedBirth = true
+		return fb, nil
+	}
+
+	birth := self.BirthDate.Format("2006-01-02")
+	yc := yijing.Seed(birth, self.BirthTime, now)
+	cacheKey := fmt.Sprintf("%s:%s:%s:%d", userID, birth, now.Format("2006-01-02"), now.Hour()/3)
+	if v, hit := tipsCache.Load(cacheKey); hit {
+		e := v.(tipsCacheEntry)
+		if time.Now().Before(e.exp) {
+			out := e.tips
+			return &out, nil
+		}
+	}
+
+	if s.LLM == nil || !s.LLM.Enabled() {
+		fb := fallbackTips(now, birth, self.BirthTime)
+		fb.GuaName = yc.GuaName
+		fb.DayPart = yc.DayPart
+		return fb, nil
+	}
+
+	tips, err := s.generateLLMTips(ctx, yc)
+	if err != nil {
+		log.Printf("home daily-tips llm: %v", err)
+		fb := fallbackTips(now, birth, self.BirthTime)
+		fb.GuaName = yc.GuaName
+		fb.DayPart = yc.DayPart
+		return fb, nil
+	}
+	tips.Source = "llm"
+	tips.GuaName = yc.GuaName
+	tips.DayPart = yc.DayPart
+	tips.NeedBirth = false
+	tipsCache.Store(cacheKey, tipsCacheEntry{tips: *tips, exp: now.Add(45 * time.Minute)})
+	return tips, nil
+}
+
+func (s *Service) findSelf(ctx context.Context, userID uuid.UUID) (*model.Profile, bool) {
+	if s.Profiles == nil || userID == uuid.Nil {
+		return nil, false
+	}
+	items, err := s.Profiles.ListByUser(ctx, userID)
+	if err != nil {
+		return nil, false
+	}
+	for i := range items {
+		if items[i].Relation == "self" {
+			return &items[i], true
+		}
+	}
+	return nil, false
+}
+
+func (s *Service) generateLLMTips(ctx context.Context, yc yijing.Context) (*DailyTips, error) {
+	sys := `你是愈心谷的生活节律助手。根据用户出生信息与当前时刻的易经卦象种子，给出温和的生活建议。
+硬性要求：
+- 禁止占卜/算命/改命恐吓/吉凶祸福话术
+- 禁止医疗疗效承诺
+- 用探索向、身心节律语气；可参考卦象意象，不要说「必有」类断言
+- 只输出 JSON，不要 markdown：
+{"clothing_index":70,"clothing":"一句穿衣建议","color_note":"一句颜色说明","palette":[{"name":"色名","hex":"#RRGGBB"},{"name":"色名","hex":"#RRGGBB"}],"wellness":"一句养生建议"}
+- clothing_index 为 55–95 整数；palette 恰好 2 项；文案各不超过 40 字`
+
+	user := yc.PromptLine() + "\n请生成今日穿衣指数、颜色搭配与养生推荐。"
+	raw, err := s.LLM.Chat(ctx, []deepseek.Message{
+		{Role: "system", Content: sys},
+		{Role: "user", Content: user},
+	})
+	if err != nil {
+		return nil, err
+	}
+	return parseTipsJSON(raw)
+}
+
+func parseTipsJSON(raw string) (*DailyTips, error) {
+	raw = strings.TrimSpace(raw)
+	if i := strings.Index(raw, "{"); i >= 0 {
+		raw = raw[i:]
+	}
+	if j := strings.LastIndex(raw, "}"); j >= 0 {
+		raw = raw[:j+1]
+	}
+	var t DailyTips
+	if err := json.Unmarshal([]byte(raw), &t); err != nil {
+		return nil, err
+	}
+	if t.ClothingIndex < 40 || t.ClothingIndex > 100 {
+		t.ClothingIndex = 72
+	}
+	t.Clothing = clampRunes(t.Clothing, 48)
+	t.ColorNote = clampRunes(t.ColorNote, 40)
+	t.Wellness = clampRunes(t.Wellness, 48)
+	if len(t.Palette) != 2 {
+		return nil, fmt.Errorf("palette len")
+	}
+	for i := range t.Palette {
+		t.Palette[i].Name = clampRunes(t.Palette[i].Name, 8)
+		if !looksHex(t.Palette[i].Hex) {
+			t.Palette[i].Hex = "#E8DCC8"
+		}
+	}
+	return &t, nil
+}
+
+func clampRunes(s string, max int) string {
+	s = strings.TrimSpace(s)
+	if utf8.RuneCountInString(s) <= max {
+		return s
+	}
+	r := []rune(s)
+	return string(r[:max])
+}
+
+func looksHex(h string) bool {
+	if len(h) != 7 || h[0] != '#' {
+		return false
+	}
+	for i := 1; i < 7; i++ {
+		c := h[i]
+		if !((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) {
+			return false
+		}
+	}
+	return true
+}
+
+func fallbackTips(now time.Time, birth string, birthTime *string) *DailyTips {
+	yc := yijing.Seed(birth, birthTime, now)
+	if birth == "" {
+		yc = yijing.Seed(now.Format("2006-01-02"), nil, now)
+	}
+	palettes := [][]ColorChip{
+		{{Name: "米白", Hex: "#F5F0E8"}, {Name: "雾霾蓝", Hex: "#A8C4D8"}},
+		{{Name: "燕麦色", Hex: "#E8DCC8"}, {Name: "浅杏", Hex: "#F0C9A8"}},
+		{{Name: "浅灰", Hex: "#D8D6D4"}, {Name: "雾粉", Hex: "#E8B8C4"}},
+		{{Name: "象牙白", Hex: "#F7F4EC"}, {Name: "鼠尾草", Hex: "#A8C4B0"}},
+		{{Name: "浅卡其", Hex: "#DCC8A8"}, {Name: "浅蓝", Hex: "#B0D0E8"}},
+	}
+	clothing := []string{
+		"轻薄透气更舒服，外套可备一件薄衫应付温差。",
+		"选柔软面料贴身，活动一整天也不易紧绷。",
+		"上下同色系更省心，再加一件小配饰点睛即可。",
+		"宽松剪裁更自在，适合慢节奏出门与散步。",
+		"内里干净简约，外搭一件有质感的外套就够。",
+	}
+	notes := []string{"清爽干净，不抢戏。", "温柔耐看，适合日常。", "柔和提气色，不显沉。", "安静又有呼吸感。", "干净利落，好搭配。"}
+	well := []string{
+		"午后泡一杯温茶，给身心一点缓冲。",
+		"今晚早点放下屏幕，让眼睛歇一会儿。",
+		"走路时把肩膀放松，呼吸会顺很多。",
+		"饭后慢走十分钟，比猛坐着更舒服。",
+		"喝水提醒自己小口多次，别等口渴再灌。",
+	}
+	i := (yc.GuaIndex + yc.Line + now.Hour()) % 5
+	return &DailyTips{
+		ClothingIndex: 62 + (yc.GuaIndex % 31),
+		Clothing:      clothing[i],
+		ColorNote:     notes[i],
+		Palette:       palettes[i],
+		Wellness:      well[i],
+		Source:        "fallback",
+		GuaName:       yc.GuaName,
+		DayPart:       yc.DayPart,
+	}
+}

apps/api/internal/service/home/service.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/google/uuid"
 
+	"github.com/yuxingu/digital-psychology/apps/api/internal/llm/deepseek"
 	"github.com/yuxingu/digital-psychology/apps/api/internal/repository"
 )
 
@@ -25,9 +26,11 @@ var allowedIcons = map[string]struct{}{
 	"companion": {}, "ask": {}, "cards": {}, "reports": {}, "growth": {}, "relation": {},
 }
 
-// Service serves homepage tool catalog.
+// Service serves homepage tool catalog and daily tips.
 type Service struct {
-	Repo *repository.HomeToolsRepo
+	Repo     *repository.HomeToolsRepo
+	Profiles *repository.ProfileRepo
+	LLM      *deepseek.Client
 }
 
 // ListPublic returns enabled tools.

apps/api/internal/service/profile/service.go

@@ -30,6 +30,9 @@ type CreateInput struct {
 	BirthPlace   *string
 }
 
+// ErrSelfExists is returned when creating a second self profile.
+var ErrSelfExists = errors.New("self profile already exists")
+
 // Create stores a profile for the user.
 func (s *Service) Create(ctx context.Context, userID uuid.UUID, in CreateInput) (*model.Profile, error) {
 	if in.Relation != "self" && in.Relation != "other" {
@@ -38,6 +41,15 @@ func (s *Service) Create(ctx context.Context, userID uuid.UUID, in CreateInput)
 	if in.BirthDate.IsZero() {
 		return nil, errors.New("birth_date required")
 	}
+	if in.Relation == "self" {
+		n, err := s.Repo.CountActiveSelf(ctx, userID)
+		if err != nil {
+			return nil, err
+		}
+		if n > 0 {
+			return nil, ErrSelfExists
+		}
+	}
 	name := in.DisplayName
 	if name == "" {
 		if in.Relation == "self" {

apps/api/internal/service/report/service.go

@@ -163,6 +163,9 @@ func (s *Service) CreateStar(ctx context.Context, userID, profileID uuid.UUID) (
 // CreateSynastry builds a multi-chart synastry report for two profiles.
 // asOf is the secondary-progression date (defaults to today CST when nil/zero).
 func (s *Service) CreateSynastry(ctx context.Context, userID, profileAID, profileBID uuid.UUID, asOf *time.Time) (*model.GrowthReport, error) {
+	if profileAID == profileBID {
+		return nil, errors.New("合盘需要两个不同档案")
+	}
 	pa, err := s.Profiles.GetForUser(ctx, userID, profileAID)
 	if err != nil {
 		return nil, errors.New("profile a not found")
@@ -174,6 +177,8 @@ func (s *Service) CreateSynastry(ctx context.Context, userID, profileAID, profil
 		if err != nil || !pb.GeoVisible || pb.Relation != "self" || pb.UserID == userID {
 			return nil, errors.New("profile b not found")
 		}
+	} else if pb.Relation != "other" {
+		return nil, errors.New("合盘对象须为 TA 档案或附近的人")
 	}
 	ca, err := star.NatalChart(pa.BirthDate, pa.BirthTime, pa.BirthPlace)
 	if err != nil {