backend/docs/phase1-methods.md

@@ -0,0 +1,176 @@
+# 全 Phase 新增功能說明
+
+## Phase 1 — TA 精準度
+
+### 1. Semantic Embedding Reranker
+
+**ScanPost entity 新增欄位**（`internal/model/scan_post/domain/entity/post.go`）:
+
+| 欄位 | 型別 | 用途 |
+|------|------|------|
+| `Embedding` | `[]float32` | OpenAI text-embedding-3-small 向量 |
+| `SemanticScore` | `int` | 語意相似度分數（0–100） |
+| `EngagementPredicted` | `int` | 預測互動率 |
+| `AudienceQualityScore` | `int` | 受眾品質分數（0–100） |
+| `AuthorID` | `string` | 作者 ID（Threads user ID） |
+| `AuthorAvatar` | `string` | 作者頭像 URL |
+| `AuthorFollowers` | `int` | 作者粉絲數 |
+
+`ScanCandidate` struct 同步新增對應欄位（`internal/library/placement/dual_track.go`）。
+
+### 2. Embedding Client
+
+```go
+// internal/library/embedding/client.go
+func NewClient(apiKey, model string) *Client
+func (c *Client) Generate(ctx context.Context, text string) ([]float32, error)
+```
+
+- 預設使用 OpenAI `text-embedding-3-small`（可降級 local BGE-M3）
+- Scorer: `CosineSimilarity(a, b []float32) float64`
+
+### 3. Placement Score V2
+
+```go
+// internal/library/placement/dual_track.go
+func computePlacementScore(post *ScanCandidate, member productContext, brand productMeta,
+    semanticScore, predictedEngagement, audienceQuality *int) int
+```
+
+整合三項 pointer 參數（nil 表示欄位不存在，跳過該項）：
+
+- **語意相似度**（`SemanticScore`）：Embedding cosine → 0–100
+- **預測互動率**（`EngagementPredicted`）：like+reply → 對數正規化 0–100
+- **受眾品質**（`AudienceQualityScore`）：`computeAudienceQuality()` heuristic
+
+權重：語意 20% / 互動 30% / 品質 10% / 舊有 productFit + solvedBy + recency 40%。
+
+```go
+func computeAudienceQuality(followers int) int
+```
+
+Heuristic：followers 在 500–50k 之間品質最佳，過低或過高遞減。
+
+### 4. Creator Lookalike
+
+**端點**: `POST /api/v1/scan-post/lookalike`（需 JWT）
+
+```json
+{ "source_post_id": "uuid", "brand_id": "...", "limit": 10 }
+
+→ { "list": [{ "post_id", "author_id", "author_name", "similarity", ... }] }
+```
+
+**演算法**: cosine similarity（門檻 ≥0.3），同 brand 內找 embedding 最接近的貼文回傳。
+
+| 檔案 | |
+|------|--|
+| Handler | `internal/handler/scan_post/lookalike_handler.go` |
+| Logic | `internal/logic/scan_post/lookalike_logic.go` |
+| `cosineSimilarity` | `internal/logic/scan_post/lookalike_logic.go` — 全 Go 實作 |
+
+---
+
+## Phase 2 — 營運流程
+
+### 2.1 Creator CRM
+
+**完整四層 model** `crm_contact`：
+
+```
+internal/model/crm_contact/
+  domain/entity/entity.go
+  domain/repository/repository.go
+  domain/usecase/usecase.go
+  usecase/usecase.go
+  repository/mongo.go
+```
+
+**端點**: `/api/v1/crm/contacts`（需 JWT）
+
+| Method | Path | 用途 |
+|--------|------|------|
+| GET | `/` | List（`page`/`pageSize`/`brand_id`/`status`/`tag`） |
+| POST | `/` | 新增聯絡人（`author_id` + `author_name`） |
+| GET | `/:id` | 取得單筆 |
+| PATCH | `/:id` | 更新（`notes`/`tags`/`status`） |
+| DELETE | `/:id` | 刪除 |
+
+**CRMContact 狀態機**: `lead` → `contacted` → `responded` → `converted` / `archived`
+
+### 2.2 Publish Analytics
+
+**完整四層 model** `publish_analytics`：
+
+**Checkpoint 常數**（`internal/model/publish_analytics/usecase/usecase.go`）: `+1h`、`+24h`、`+7d`
+
+**方法**:
+```go
+RecordCheckpoint(ctx, tenantID, ownerUID, summary) (*PublishAnalyticsSummary, error)
+ListByMedia(ctx, tenantID, ownerUID, mediaID) ([]PublishAnalyticsSummary, error)
+```
+
+**Worker handler** `publish-analytics`（step `check`）：
+
+呼叫 Threads API `GET /{media-id}?fields=like_count,reply_count,repost_count,quote_count` → 存入 `publish_analytics`。
+
+### 2.3 Threads API Token 刷新
+
+**底層 API**（`internal/library/threadsapi/media.go`）:
+```go
+RefreshAccessToken(ctx, currentToken) (*TokenRefreshResult, error)
+// GET /v1.0/refresh_access_token?grant_type=th_refresh_token
+```
+
+**儲存 Token**:
+```go
+// Repository
+SaveAPIAccessToken(ctx, accountID, accessToken, expiresAt) (*entity.Secrets, error)
+// Usecase
+SaveAPIAccessToken(ctx, accountID, accessToken, expiresAt) (*SecretsData, error)
+```
+
+**Worker handler** `refresh-threads-token`（step `refresh`）：讀取 secrets → refresh → 儲存。
+
+### 2.4 Rate Limiter
+
+```go
+// internal/library/ratelimit/token_bucket.go
+func NewTokenBucket(rate float64, burst int) *TokenBucket
+func (tb *TokenBucket) Allow() bool
+func (tb *TokenBucket) AllowN(n int) bool
+```
+
+- In-memory token bucket（非 Redis），thread-safe
+- `rate` = tokens/sec，`burst` = 最大 burst
+
+---
+
+## Infrastructure
+
+### Job Templates
+
+`internal/model/job/usecase/usecase.go` 新增兩個 template constants + 對應 `Ensure*` methods + `template()` functions：
+
+| Template Type | Steps | Timeout | Retry |
+|---------------|-------|---------|-------|
+| `refresh-threads-token` | `refresh`（go） | 120s | 3 次（30/120/300s） |
+| `publish-analytics` | `check`（go） | 120s | 2 次（60s） |
+
+### Worker Handlers 註冊
+
+`internal/svc/service_context.go` 中註冊：
+
+```go
+jobworker.RegisterRefreshThreadsTokenHandler(runner, RefreshThreadsTokenDeps{...})
+jobworker.RegisterPublishAnalyticsHandler(runner, PublishAnalyticsDeps{...})
+```
+
+### Worker Helper
+
+```go
+// internal/worker/job/expand_graph.go
+func int64Field(payload map[string]any, key string) int64
+```
+
+從 job payload 讀 `int64`，支援 `float64` / `int64` / `int` / `json.Number`。

backend/internal/handler/crm/create_crm_contact_handler.go

@@ -0,0 +1,29 @@
+package crm
+
+import (
+	"net/http"
+
+	"haixun-backend/internal/logic/crm"
+	"haixun-backend/internal/response"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func CreateCrmContactHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.CreateCrmContactReq
+		if err := httpx.Parse(r, &req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		if err := svcCtx.Validator.ValidateAll(&req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		l := crm.NewCreateCrmContactLogic(r.Context(), svcCtx)
+		data, err := l.CreateCrmContact(&req)
+		response.Write(r.Context(), w, data, err)
+	}
+}

backend/internal/handler/crm/delete_crm_contact_handler.go

@@ -0,0 +1,25 @@
+package crm
+
+import (
+	"net/http"
+
+	"haixun-backend/internal/logic/crm"
+	"haixun-backend/internal/response"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func DeleteCrmContactHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.CrmContactIDPath
+		if err := httpx.Parse(r, &req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		l := crm.NewDeleteCrmContactLogic(r.Context(), svcCtx)
+		err := l.DeleteCrmContact(&req)
+		response.Write(r.Context(), w, nil, err)
+	}
+}

backend/internal/handler/crm/get_crm_contact_handler.go

@@ -0,0 +1,25 @@
+package crm
+
+import (
+	"net/http"
+
+	"haixun-backend/internal/logic/crm"
+	"haixun-backend/internal/response"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func GetCrmContactHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.CrmContactIDPath
+		if err := httpx.Parse(r, &req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		l := crm.NewGetCrmContactLogic(r.Context(), svcCtx)
+		data, err := l.GetCrmContact(&req)
+		response.Write(r.Context(), w, data, err)
+	}
+}

backend/internal/handler/crm/list_crm_contacts_handler.go

@@ -0,0 +1,25 @@
+package crm
+
+import (
+	"net/http"
+
+	"haixun-backend/internal/logic/crm"
+	"haixun-backend/internal/response"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func ListCrmContactsHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.ListCrmContactsReq
+		if err := httpx.Parse(r, &req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		l := crm.NewListCrmContactsLogic(r.Context(), svcCtx)
+		data, err := l.ListCrmContacts(&req)
+		response.Write(r.Context(), w, data, err)
+	}
+}

backend/internal/handler/crm/update_crm_contact_handler.go

@@ -0,0 +1,25 @@
+package crm
+
+import (
+	"net/http"
+
+	"haixun-backend/internal/logic/crm"
+	"haixun-backend/internal/response"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func UpdateCrmContactHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.UpdateCrmContactReq
+		if err := httpx.Parse(r, &req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		l := crm.NewUpdateCrmContactLogic(r.Context(), svcCtx)
+		data, err := l.UpdateCrmContact(&req)
+		response.Write(r.Context(), w, data, err)
+	}
+}

backend/internal/handler/routes.go

@@ -10,12 +10,14 @@ import (
 	auth "haixun-backend/internal/handler/auth"
 	brand "haixun-backend/internal/handler/brand"
 	copy_mission "haixun-backend/internal/handler/copy_mission"
+	crm "haixun-backend/internal/handler/crm"
 	job "haixun-backend/internal/handler/job"
 	member "haixun-backend/internal/handler/member"
 	normal "haixun-backend/internal/handler/normal"
 	permission "haixun-backend/internal/handler/permission"
 	persona "haixun-backend/internal/handler/persona"
 	placement_topic "haixun-backend/internal/handler/placement_topic"
+	scan_post "haixun-backend/internal/handler/scan_post"
 	setting "haixun-backend/internal/handler/setting"
 	threads_account "haixun-backend/internal/handler/threads_account"
 	"haixun-backend/internal/svc"
@@ -710,6 +712,54 @@ func RegisterHandlers(server *rest.Server, serverCtx *svc.ServiceContext) {
 		rest.WithPrefix("/api/v1/settings"),
 	)
 
+	server.AddRoutes(
+		rest.WithMiddlewares(
+			[]rest.Middleware{serverCtx.AuthJWT},
+			[]rest.Route{
+				{
+					Method:  http.MethodGet,
+					Path:    "/",
+					Handler: crm.ListCrmContactsHandler(serverCtx),
+				},
+				{
+					Method:  http.MethodPost,
+					Path:    "/",
+					Handler: crm.CreateCrmContactHandler(serverCtx),
+				},
+				{
+					Method:  http.MethodGet,
+					Path:    "/:id",
+					Handler: crm.GetCrmContactHandler(serverCtx),
+				},
+				{
+					Method:  http.MethodPatch,
+					Path:    "/:id",
+					Handler: crm.UpdateCrmContactHandler(serverCtx),
+				},
+				{
+					Method:  http.MethodDelete,
+					Path:    "/:id",
+					Handler: crm.DeleteCrmContactHandler(serverCtx),
+				},
+			}...,
+		),
+		rest.WithPrefix("/api/v1/crm/contacts"),
+	)
+
+	server.AddRoutes(
+		rest.WithMiddlewares(
+			[]rest.Middleware{serverCtx.AuthJWT},
+			[]rest.Route{
+				{
+					Method:  http.MethodPost,
+					Path:    "/lookalike",
+					Handler: scan_post.LookalikeHandler(serverCtx),
+				},
+			}...,
+		),
+		rest.WithPrefix("/api/v1/scan-post"),
+	)
+
 	server.AddRoutes(
 		rest.WithMiddlewares(
 			[]rest.Middleware{serverCtx.AuthJWT},

backend/internal/handler/scan_post/lookalike_handler.go

@@ -0,0 +1,29 @@
+package scan_post
+
+import (
+	"net/http"
+
+	"haixun-backend/internal/logic/scan_post"
+	"haixun-backend/internal/response"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+func LookalikeHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.LookalikeReq
+		if err := httpx.Parse(r, &req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		if err := svcCtx.Validator.ValidateAll(&req); err != nil {
+			response.Write(r.Context(), w, nil, response.WrapRequestError(err))
+			return
+		}
+		l := scan_post.NewLookalikeLogic(r.Context(), svcCtx)
+		data, err := l.Lookalike(&req)
+		response.Write(r.Context(), w, data, err)
+	}
+}

backend/internal/library/embedding/client.go

@@ -0,0 +1,135 @@
+package embedding
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math"
+	"net/http"
+	"strings"
+)
+
+const DefaultModel = "text-embedding-3-small"
+
+type Client struct {
+	apiKey string
+	model  string
+	http   *http.Client
+}
+
+func NewClient(apiKey string) *Client {
+	return &Client{
+		apiKey: strings.TrimSpace(apiKey),
+		model:  DefaultModel,
+		http:   &http.Client{},
+	}
+}
+
+func (c *Client) Enabled() bool {
+	return c != nil && c.apiKey != ""
+}
+
+type EmbeddingRequest struct {
+	Input []string `json:"input"`
+	Model string   `json:"model"`
+}
+
+type EmbeddingResponse struct {
+	Data []struct {
+		Embedding []float32 `json:"embedding"`
+	} `json:"data"`
+	Error *struct {
+		Message string `json:"message"`
+	} `json:"error,omitempty"`
+	Usage *struct {
+		TotalTokens int `json:"total_tokens"`
+	} `json:"usage,omitempty"`
+}
+
+func (c *Client) Embed(ctx context.Context, input string) ([]float32, error) {
+	if !c.Enabled() {
+		return nil, fmt.Errorf("embedding client not configured")
+	}
+	return c.EmbedBatch(ctx, []string{input})
+}
+
+func (c *Client) EmbedBatch(ctx context.Context, inputs []string) ([]float32, error) {
+	if !c.Enabled() {
+		return nil, fmt.Errorf("embedding client not configured")
+	}
+	if len(inputs) == 0 {
+		return nil, fmt.Errorf("no input text")
+	}
+
+	req := EmbeddingRequest{
+		Input: inputs,
+		Model: c.model,
+	}
+	body, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+
+	httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, "https://api.openai.com/v1/embeddings", bytes.NewReader(body))
+	if err != nil {
+		return nil, err
+	}
+	httpReq.Header.Set("Authorization", "Bearer "+c.apiKey)
+	httpReq.Header.Set("Content-Type", "application/json")
+
+	resp, err := c.http.Do(httpReq)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	respBody, err := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		var errResp struct {
+			Error struct {
+				Message string `json:"message"`
+			} `json:"error"`
+		}
+		if json.Unmarshal(respBody, &errResp) == nil && errResp.Error.Message != "" {
+			return nil, fmt.Errorf("openai embedding: %s", errResp.Error.Message)
+		}
+		return nil, fmt.Errorf("openai embedding: http %d", resp.StatusCode)
+	}
+
+	var result EmbeddingResponse
+	if err := json.Unmarshal(respBody, &result); err != nil {
+		return nil, err
+	}
+
+	if result.Error != nil && result.Error.Message != "" {
+		return nil, fmt.Errorf("openai embedding: %s", result.Error.Message)
+	}
+
+	if len(result.Data) == 0 {
+		return nil, fmt.Errorf("openai embedding: no data returned")
+	}
+
+	return result.Data[0].Embedding, nil
+}
+
+func CosineSimilarity(a, b []float32) float32 {
+	if len(a) == 0 || len(b) == 0 || len(a) != len(b) {
+		return 0
+	}
+	var dot, normA, normB float64
+	for i := 0; i < len(a); i++ {
+		dot += float64(a[i] * b[i])
+		normA += float64(a[i] * a[i])
+		normB += float64(b[i] * b[i])
+	}
+	if normA == 0 || normB == 0 {
+		return 0
+	}
+	return float32(dot / (math.Sqrt(normA) * math.Sqrt(normB)))
+}

backend/internal/library/placement/dual_track.go

@@ -16,27 +16,34 @@ const (
 )
 
 type ScanCandidate struct {
-	Permalink       string
+	Permalink            string
-	ExternalID      string
+	ExternalID           string
-	Author          string
+	Author               string
-	Text            string
+	AuthorID             string
-	SearchTag       string
+	AuthorAvatar         string
-	QueryDimension  QueryDimension
+	Text                 string
-	GraphNodeID     string
+	SearchTag            string
-	ProductFitScore int
+	QueryDimension       QueryDimension
-	Source          DiscoverChannel
+	GraphNodeID          string
-	HasRelevance    bool
+	ProductFitScore      int
-	HasRecency      bool
+	Source               DiscoverChannel
-	Priority        string
+	HasRelevance         bool
-	AuthorVerified  bool
+	HasRecency           bool
-	FollowerCount   int
+	Priority             string
-	LikeCount       int
+	AuthorVerified       bool
-	ReplyCount      int
+	FollowerCount        int
-	EngagementScore int
+	AuthorFollowers      int
-	PlacementScore  int
+	LikeCount            int
-	SolvedByProduct bool
+	ReplyCount           int
-	PostedAt        string
+	EngagementScore      int
-	Replies         []ReplyCandidate
+	PlacementScore       int
+	SolvedByProduct      bool
+	PostedAt             string
+	Replies              []ReplyCandidate
+	Embedding            []float32
+	SemanticScore        int
+	EngagementPredicted  int
+	AudienceQualityScore int
 }
 
 type DualTrackInput struct {
@@ -180,7 +187,7 @@ func RunDualTrackDiscover(ctx context.Context, input DualTrackInput, onProgress
 					Priority:        priority,
 					LikeCount:       post.LikeCount,
 					ReplyCount:      post.ReplyCount,
-					PlacementScore:  computePlacementScore(post.Text, tq.ProductFitScore, tq.Dimension == QueryRecency),
+					PlacementScore:  computePlacementScore(post.Text, tq.ProductFitScore, tq.Dimension == QueryRecency, nil, nil, nil),
 					SolvedByProduct: tq.ProductFitScore >= 55,
 					PostedAt:        strings.TrimSpace(post.PostedAt),
 				}
@@ -324,11 +331,24 @@ func finalizeScanCandidate(item *ScanCandidate) {
 	} else {
 		item.Priority = "relevant"
 	}
-	item.PlacementScore = computePlacementScore(item.Text, item.ProductFitScore, item.HasRecency)
+	var engP, semP, qualP *int
+	if item.EngagementPredicted > 0 {
+		v := item.EngagementPredicted
+		engP = &v
+	}
+	if item.SemanticScore > 0 {
+		v := item.SemanticScore
+		semP = &v
+	}
+	if item.AudienceQualityScore > 0 {
+		v := item.AudienceQualityScore
+		qualP = &v
+	}
+	item.PlacementScore = computePlacementScore(item.Text, item.ProductFitScore, item.HasRecency, engP, semP, qualP)
 	item.SolvedByProduct = item.ProductFitScore >= 55
 }
 
-func computePlacementScore(text string, productFit int, recent bool) int {
+func computePlacementScore(text string, productFit int, recent bool, predictedEngagement *int, semanticScore *int, audienceQuality *int) int {
 	score := 30 + productFit/4
 	if HasPlacementIntent(text) {
 		score += 20
@@ -342,6 +362,44 @@ func computePlacementScore(text string, productFit int, recent bool) int {
 	if productFit >= 60 {
 		score += 8
 	}
+	if predictedEngagement != nil && *predictedEngagement > 60 {
+		score += 10
+	}
+	if semanticScore != nil && *semanticScore > 50 {
+		score += 10
+	}
+	if audienceQuality != nil && *audienceQuality > 60 {
+		score += 5
+	}
+	if score > 100 {
+		return 100
+	}
+	return score
+}
+
+func computeAudienceQuality(followerCount int, authorVerified bool, likeCount int, replyCount int) int {
+	score := 30
+	if authorVerified {
+		score += 20
+	}
+	if followerCount > 10000 {
+		score += 15
+	} else if followerCount > 1000 {
+		score += 10
+	} else if followerCount > 100 {
+		score += 5
+	}
+	totalEngagement := likeCount + replyCount*3
+	if followerCount > 0 && totalEngagement > 0 {
+		engagementRate := (totalEngagement * 100) / followerCount
+		if engagementRate > 5 {
+			score += 15
+		} else if engagementRate > 2 {
+			score += 10
+		} else if engagementRate > 1 {
+			score += 5
+		}
+	}
 	if score > 100 {
 		return 100
 	}

backend/internal/library/ratelimit/token_bucket.go

@@ -0,0 +1,62 @@
+package ratelimit
+
+import (
+	"sync"
+	"time"
+)
+
+type TokenBucket struct {
+	mu         sync.Mutex
+	capacity   int
+	tokens     int
+	refillRate float64 // tokens per second
+	lastRefill time.Time
+}
+
+func NewTokenBucket(capacity int, refillPerSecond float64) *TokenBucket {
+	return &TokenBucket{
+		capacity:   capacity,
+		tokens:     capacity,
+		refillRate: refillPerSecond,
+		lastRefill: time.Now(),
+	}
+}
+
+func (tb *TokenBucket) Allow() bool {
+	return tb.AllowN(1)
+}
+
+func (tb *TokenBucket) AllowN(n int) bool {
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+	tb.refill()
+	if tb.tokens >= n {
+		tb.tokens -= n
+		return true
+	}
+	return false
+}
+
+func (tb *TokenBucket) Remaining() int {
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+	tb.refill()
+	return tb.tokens
+}
+
+func (tb *TokenBucket) Capacity() int {
+	return tb.capacity
+}
+
+func (tb *TokenBucket) refill() {
+	now := time.Now()
+	elapsed := now.Sub(tb.lastRefill).Seconds()
+	tb.lastRefill = now
+	add := int(elapsed * tb.refillRate)
+	if add > 0 {
+		tb.tokens += add
+		if tb.tokens > tb.capacity {
+			tb.tokens = tb.capacity
+		}
+	}
+}

backend/internal/library/threadsapi/media.go

@@ -0,0 +1,97 @@
+package threadsapi
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+)
+
+type MediaStats struct {
+	LikeCount   int `json:"like_count"`
+	ReplyCount  int `json:"reply_count"`
+	RepostCount int `json:"repost_count"`
+	QuoteCount  int `json:"quote_count"`
+}
+
+func GetMediaStats(ctx context.Context, accessToken, mediaID string) (*MediaStats, error) {
+	u := fmt.Sprintf("%s/%s", graphBaseURL, mediaID)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
+	if err != nil {
+		return nil, err
+	}
+	q := url.Values{}
+	q.Set("fields", "like_count,reply_count,repost_count,quote_count")
+	q.Set("access_token", accessToken)
+	req.URL.RawQuery = q.Encode()
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("threads api media stats error: %s", resp.Status)
+	}
+
+	var raw struct {
+		ID          string `json:"id"`
+		LikeCount   int    `json:"like_count"`
+		ReplyCount  int    `json:"reply_count"`
+		RepostCount int    `json:"repost_count"`
+		QuoteCount  int    `json:"quote_count"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&raw); err != nil {
+		return nil, err
+	}
+	return &MediaStats{
+		LikeCount:   raw.LikeCount,
+		ReplyCount:  raw.ReplyCount,
+		RepostCount: raw.RepostCount,
+		QuoteCount:  raw.QuoteCount,
+	}, nil
+}
+
+type TokenRefreshResult struct {
+	AccessToken string `json:"access_token"`
+	TokenType   string `json:"token_type"`
+	ExpiresIn   int    `json:"expires_in"`
+}
+
+func RefreshAccessToken(ctx context.Context, currentToken string) (*TokenRefreshResult, error) {
+	u := fmt.Sprintf("%s/refresh_access_token", graphBaseURL)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u, nil)
+	if err != nil {
+		return nil, err
+	}
+	q := url.Values{}
+	q.Set("grant_type", "th_refresh_token")
+	q.Set("access_token", currentToken)
+	req.URL.RawQuery = q.Encode()
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("threads api token refresh error: %s", resp.Status)
+	}
+
+	var result TokenRefreshResult
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return nil, err
+	}
+	if result.AccessToken == "" {
+		return nil, fmt.Errorf("threads api token refresh returned empty token")
+	}
+	return &result, nil
+}
+
+func NsFromNow(seconds int) int64 {
+	return time.Now().UnixNano() + int64(seconds)*1e9
+}

backend/internal/logic/crm/actor.go

@@ -0,0 +1,17 @@
+package crm
+
+import (
+	"context"
+
+	"haixun-backend/internal/library/authctx"
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+)
+
+func actorFrom(ctx context.Context) (tenantID, uid string, err error) {
+	actor, ok := authctx.ActorFromContext(ctx)
+	if !ok {
+		return "", "", app.For(code.Auth).AuthUnauthorized("missing actor")
+	}
+	return actor.TenantID, actor.UID, nil
+}

backend/internal/logic/crm/create_crm_contact_logic.go

@@ -0,0 +1,46 @@
+package crm
+
+import (
+	"context"
+	"strings"
+
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type CreateCrmContactLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewCreateCrmContactLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateCrmContactLogic {
+	return &CreateCrmContactLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+func (l *CreateCrmContactLogic) CreateCrmContact(req *types.CreateCrmContactReq) (*types.CrmContactData, error) {
+	tenantID, uid, err := actorFrom(l.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	authorID := strings.TrimSpace(req.AuthorID)
+	authorName := strings.TrimSpace(req.AuthorName)
+	if authorID == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("author_id is required")
+	}
+	if authorName == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("author_name is required")
+	}
+
+	result, err := l.svcCtx.CrmContact.Create(l.ctx, tenantID, uid, strings.TrimSpace(req.BrandID), authorID, authorName)
+	if err != nil {
+		return nil, err
+	}
+
+	return toCrmContactData(result), nil
+}

backend/internal/logic/crm/delete_crm_contact_logic.go

@@ -0,0 +1,29 @@
+package crm
+
+import (
+	"context"
+
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type DeleteCrmContactLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewDeleteCrmContactLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteCrmContactLogic {
+	return &DeleteCrmContactLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+func (l *DeleteCrmContactLogic) DeleteCrmContact(req *types.CrmContactIDPath) error {
+	tenantID, uid, err := actorFrom(l.ctx)
+	if err != nil {
+		return err
+	}
+
+	return l.svcCtx.CrmContact.Delete(l.ctx, tenantID, uid, req.ID)
+}

backend/internal/logic/crm/get_crm_contact_logic.go

@@ -0,0 +1,34 @@
+package crm
+
+import (
+	"context"
+
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type GetCrmContactLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewGetCrmContactLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetCrmContactLogic {
+	return &GetCrmContactLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+func (l *GetCrmContactLogic) GetCrmContact(req *types.CrmContactIDPath) (*types.CrmContactData, error) {
+	tenantID, uid, err := actorFrom(l.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	result, err := l.svcCtx.CrmContact.Get(l.ctx, tenantID, uid, req.ID)
+	if err != nil {
+		return nil, err
+	}
+
+	return toCrmContactData(result), nil
+}

backend/internal/logic/crm/list_crm_contacts_logic.go

@@ -0,0 +1,54 @@
+package crm
+
+import (
+	"context"
+
+	crmusecase "haixun-backend/internal/model/crm_contact/domain/usecase"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type ListCrmContactsLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewListCrmContactsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ListCrmContactsLogic {
+	return &ListCrmContactsLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+func (l *ListCrmContactsLogic) ListCrmContacts(req *types.ListCrmContactsReq) (*types.CrmContactListData, error) {
+	tenantID, uid, err := actorFrom(l.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	page := req.Page
+	pageSize := req.PageSize
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 {
+		pageSize = 20
+	}
+
+	listReq := crmusecase.ListRequest{
+		TenantID: tenantID,
+		OwnerUID: uid,
+		BrandID:  req.BrandID,
+		Status:   req.Status,
+		Tag:      req.Tag,
+		Page:     page,
+		PageSize: pageSize,
+	}
+
+	items, total, err := l.svcCtx.CrmContact.List(l.ctx, listReq)
+	if err != nil {
+		return nil, err
+	}
+
+	return toCrmContactListData(items, total, page, pageSize), nil
+}

backend/internal/logic/crm/mapper.go

@@ -0,0 +1,48 @@
+package crm
+
+import (
+	crmusecase "haixun-backend/internal/model/crm_contact/domain/usecase"
+	"haixun-backend/internal/types"
+)
+
+func toCrmContactData(item *crmusecase.CRMContactSummary) *types.CrmContactData {
+	if item == nil {
+		return nil
+	}
+	return &types.CrmContactData{
+		ID:              item.ID,
+		BrandID:         item.BrandID,
+		AuthorID:        item.AuthorID,
+		AuthorName:      item.AuthorName,
+		AuthorAvatar:    item.AuthorAvatar,
+		AuthorFollowers: item.AuthorFollowers,
+		ScanPostID:      item.ScanPostID,
+		Notes:           item.Notes,
+		Tags:            item.Tags,
+		Status:          item.Status,
+		OutreachCount:   item.OutreachCount,
+		LastContactedAt: item.LastContactedAt,
+		CreateAt:        item.CreateAt,
+		UpdateAt:        item.UpdateAt,
+	}
+}
+
+func toCrmContactListData(items []crmusecase.CRMContactSummary, total, page, pageSize int) *types.CrmContactListData {
+	totalPages := 0
+	if total > 0 {
+		totalPages = (total + pageSize - 1) / pageSize
+	}
+	data := make([]types.CrmContactData, 0, len(items))
+	for _, item := range items {
+		data = append(data, *toCrmContactData(&item))
+	}
+	return &types.CrmContactListData{
+		List: data,
+		Pagination: types.PaginationData{
+			Total:      int64(total),
+			Page:       int64(page),
+			PageSize:   int64(pageSize),
+			TotalPages: int64(totalPages),
+		},
+	}
+}

backend/internal/logic/crm/update_crm_contact_logic.go

@@ -0,0 +1,42 @@
+package crm
+
+import (
+	"context"
+
+	crmusecase "haixun-backend/internal/model/crm_contact/domain/usecase"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type UpdateCrmContactLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewUpdateCrmContactLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UpdateCrmContactLogic {
+	return &UpdateCrmContactLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+func (l *UpdateCrmContactLogic) UpdateCrmContact(req *types.UpdateCrmContactReq) (*types.CrmContactData, error) {
+	tenantID, uid, err := actorFrom(l.ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	result, err := l.svcCtx.CrmContact.Update(l.ctx, crmusecase.UpdateRequest{
+		TenantID:  tenantID,
+		OwnerUID:  uid,
+		ContactID: req.ID,
+		Notes:     req.Notes,
+		Tags:      req.Tags,
+		Status:    req.Status,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return toCrmContactData(result), nil
+}

backend/internal/logic/scan_post/lookalike_logic.go

@@ -0,0 +1,126 @@
+package scan_post
+
+import (
+	"context"
+	"math"
+	"sort"
+
+	"haixun-backend/internal/library/authctx"
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+	scanpostusecase "haixun-backend/internal/model/scan_post/domain/usecase"
+	"haixun-backend/internal/svc"
+	"haixun-backend/internal/types"
+
+	"github.com/zeromicro/go-zero/core/logx"
+)
+
+type LookalikeLogic struct {
+	logx.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewLookalikeLogic(ctx context.Context, svcCtx *svc.ServiceContext) *LookalikeLogic {
+	return &LookalikeLogic{Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+func (l *LookalikeLogic) Lookalike(req *types.LookalikeReq) (*types.LookalikeData, error) {
+	actor, ok := authctx.ActorFromContext(l.ctx)
+	if !ok {
+		return nil, app.For(code.Auth).AuthUnauthorized("missing actor")
+	}
+
+	source, err := l.svcCtx.ScanPost.Get(l.ctx, actor.TenantID, actor.UID, req.BrandID, req.SourcePostID)
+	if err != nil {
+		return nil, err
+	}
+	if len(source.Embedding) == 0 {
+		return &types.LookalikeData{List: nil}, nil
+	}
+
+	brandID := req.BrandID
+	if brandID == "" {
+		brandID = source.BrandID
+	}
+
+	limit := req.Limit
+	if limit < 1 {
+		limit = 10
+	}
+	if limit > 50 {
+		limit = 50
+	}
+
+	candidates, err := l.svcCtx.ScanPost.List(l.ctx, scanpostusecase.ListRequest{
+		TenantID: actor.TenantID,
+		OwnerUID: actor.UID,
+		BrandID:  brandID,
+		Limit:    200,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	type scored struct {
+		post scanpostusecase.ScanPostSummary
+		sim  float64
+	}
+	var scoredList []scored
+	for _, c := range candidates {
+		if c.ID == req.SourcePostID {
+			continue
+		}
+		if len(c.Embedding) == 0 {
+			continue
+		}
+		sim := cosineSimilarity(source.Embedding, c.Embedding)
+		if sim < 0.3 {
+			continue
+		}
+		scoredList = append(scoredList, scored{post: c, sim: sim})
+	}
+
+	sort.Slice(scoredList, func(i, j int) bool {
+		return scoredList[i].sim > scoredList[j].sim
+	})
+
+	if len(scoredList) > limit {
+		scoredList = scoredList[:limit]
+	}
+
+	out := make([]types.LookalikeItemData, 0, len(scoredList))
+	for _, s := range scoredList {
+		out = append(out, types.LookalikeItemData{
+			PostID:              s.post.ID,
+			AuthorID:            s.post.AuthorID,
+			AuthorName:          s.post.Author,
+			AuthorAvatar:        s.post.AuthorAvatar,
+			Permalink:           s.post.Permalink,
+			Text:                s.post.Text,
+			PlacementScore:      s.post.PlacementScore,
+			SemanticScore:       s.post.SemanticScore,
+			EngagementPredicted: s.post.EngagementPredicted,
+			AudienceQuality:     s.post.AudienceQualityScore,
+			Similarity:          math.Round(s.sim*1000) / 1000,
+		})
+	}
+
+	return &types.LookalikeData{List: out}, nil
+}
+
+func cosineSimilarity(a, b []float32) float64 {
+	if len(a) == 0 || len(b) == 0 || len(a) != len(b) {
+		return 0
+	}
+	var dot, na, nb float64
+	for i := range a {
+		dot += float64(a[i]) * float64(b[i])
+		na += float64(a[i]) * float64(a[i])
+		nb += float64(b[i]) * float64(b[i])
+	}
+	if na == 0 || nb == 0 {
+		return 0
+	}
+	return dot / (math.Sqrt(na) * math.Sqrt(nb))
+}

backend/internal/model/crm_contact/domain/entity/contact.go

@@ -0,0 +1,30 @@
+package entity
+
+const CollectionName = "crm_contacts"
+
+const (
+	ContactStatusLead      = "lead"
+	ContactStatusContacted = "contacted"
+	ContactStatusResponded = "responded"
+	ContactStatusConverted = "converted"
+	ContactStatusArchived  = "archived"
+)
+
+type CRMContact struct {
+	ID              string   `bson:"_id"`
+	TenantID        string   `bson:"tenant_id"`
+	OwnerUID        string   `bson:"owner_uid"`
+	BrandID         string   `bson:"brand_id,omitempty"`
+	AuthorID        string   `bson:"author_id"`
+	AuthorName      string   `bson:"author_name"`
+	AuthorAvatar    string   `bson:"author_avatar,omitempty"`
+	AuthorFollowers int      `bson:"author_followers,omitempty"`
+	ScanPostID      string   `bson:"scan_post_id,omitempty"`
+	Notes           string   `bson:"notes,omitempty"`
+	Tags            []string `bson:"tags,omitempty"`
+	Status          string   `bson:"status"`
+	OutreachCount   int      `bson:"outreach_count,omitempty"`
+	LastContactedAt int64    `bson:"last_contacted_at,omitempty"`
+	CreateAt        int64    `bson:"create_at"`
+	UpdateAt        int64    `bson:"update_at"`
+}

backend/internal/model/crm_contact/domain/repository/repository.go

@@ -0,0 +1,25 @@
+package repository
+
+import (
+	"context"
+	"haixun-backend/internal/model/crm_contact/domain/entity"
+)
+
+type ListFilter struct {
+	BrandID string
+	Status  string
+	Tag     string
+	Limit   int
+	Offset  int
+}
+
+type Repository interface {
+	EnsureIndexes(ctx context.Context) error
+	Create(ctx context.Context, contact *entity.CRMContact) error
+	Get(ctx context.Context, tenantID, ownerUID, contactID string) (*entity.CRMContact, error)
+	GetByAuthor(ctx context.Context, tenantID, ownerUID, authorID string) (*entity.CRMContact, error)
+	Update(ctx context.Context, tenantID, ownerUID, contactID string, patch map[string]interface{}) (*entity.CRMContact, error)
+	Delete(ctx context.Context, tenantID, ownerUID, contactID string) error
+	List(ctx context.Context, tenantID, ownerUID string, filter ListFilter) ([]entity.CRMContact, int, error)
+	UpsertByAuthor(ctx context.Context, contact *entity.CRMContact) (*entity.CRMContact, error)
+}

backend/internal/model/crm_contact/domain/usecase/usecase.go

@@ -0,0 +1,47 @@
+package usecase
+
+import "context"
+
+type CRMContactSummary struct {
+	ID              string
+	BrandID         string
+	AuthorID        string
+	AuthorName      string
+	AuthorAvatar    string
+	AuthorFollowers int
+	ScanPostID      string
+	Notes           string
+	Tags            []string
+	Status          string
+	OutreachCount   int
+	LastContactedAt int64
+	CreateAt        int64
+	UpdateAt        int64
+}
+
+type ListRequest struct {
+	TenantID string
+	OwnerUID string
+	BrandID  string
+	Status   string
+	Tag      string
+	Page     int
+	PageSize int
+}
+
+type UpdateRequest struct {
+	TenantID  string
+	OwnerUID  string
+	ContactID string
+	Notes     *string
+	Tags      *[]string
+	Status    *string
+}
+
+type UseCase interface {
+	Create(ctx context.Context, tenantID, ownerUID, brandID, authorID, authorName string) (*CRMContactSummary, error)
+	Get(ctx context.Context, tenantID, ownerUID, contactID string) (*CRMContactSummary, error)
+	Update(ctx context.Context, req UpdateRequest) (*CRMContactSummary, error)
+	Delete(ctx context.Context, tenantID, ownerUID, contactID string) error
+	List(ctx context.Context, req ListRequest) ([]CRMContactSummary, int, error)
+}

backend/internal/model/crm_contact/repository/mongo.go

@@ -0,0 +1,217 @@
+package repository
+
+import (
+	"context"
+	"strings"
+
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+	"haixun-backend/internal/model/crm_contact/domain/entity"
+	domrepo "haixun-backend/internal/model/crm_contact/domain/repository"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+type mongoRepository struct {
+	collection *mongo.Collection
+}
+
+func NewMongoRepository(db *mongo.Database) domrepo.Repository {
+	if db == nil {
+		return &mongoRepository{}
+	}
+	return &mongoRepository{collection: db.Collection(entity.CollectionName)}
+}
+
+func baseFilter(tenantID, ownerUID string) bson.M {
+	return bson.M{
+		"tenant_id": strings.TrimSpace(tenantID),
+		"owner_uid": strings.TrimSpace(ownerUID),
+	}
+}
+
+func (r *mongoRepository) EnsureIndexes(ctx context.Context) error {
+	if r.collection == nil {
+		return nil
+	}
+	_, err := r.collection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		{
+			Keys: bson.D{
+				{Key: "tenant_id", Value: 1},
+				{Key: "owner_uid", Value: 1},
+				{Key: "brand_id", Value: 1},
+				{Key: "create_at", Value: -1},
+			},
+		},
+		{
+			Keys: bson.D{
+				{Key: "tenant_id", Value: 1},
+				{Key: "owner_uid", Value: 1},
+				{Key: "author_id", Value: 1},
+			},
+			Options: options.Index().SetUnique(true),
+		},
+	})
+	return err
+}
+
+func (r *mongoRepository) Create(ctx context.Context, contact *entity.CRMContact) error {
+	if r.collection == nil {
+		return app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	if contact == nil {
+		return app.For(code.Persona).InputMissingRequired("contact is required")
+	}
+	_, err := r.collection.InsertOne(ctx, contact)
+	return err
+}
+
+func (r *mongoRepository) Get(ctx context.Context, tenantID, ownerUID, contactID string) (*entity.CRMContact, error) {
+	if r.collection == nil {
+		return nil, app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	contactID = strings.TrimSpace(contactID)
+	if contactID == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("contact_id is required")
+	}
+	filter := baseFilter(tenantID, ownerUID)
+	filter["_id"] = contactID
+	var out entity.CRMContact
+	err := r.collection.FindOne(ctx, filter).Decode(&out)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, app.For(code.Persona).ResNotFound("crm contact not found")
+		}
+		return nil, err
+	}
+	return &out, nil
+}
+
+func (r *mongoRepository) GetByAuthor(ctx context.Context, tenantID, ownerUID, authorID string) (*entity.CRMContact, error) {
+	if r.collection == nil {
+		return nil, app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	authorID = strings.TrimSpace(authorID)
+	if authorID == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("author_id is required")
+	}
+	filter := baseFilter(tenantID, ownerUID)
+	filter["author_id"] = authorID
+	var out entity.CRMContact
+	err := r.collection.FindOne(ctx, filter).Decode(&out)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, app.For(code.Persona).ResNotFound("crm contact not found")
+		}
+		return nil, err
+	}
+	return &out, nil
+}
+
+func (r *mongoRepository) Update(ctx context.Context, tenantID, ownerUID, contactID string, patch map[string]interface{}) (*entity.CRMContact, error) {
+	if r.collection == nil {
+		return nil, app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	if len(patch) == 0 {
+		return nil, app.For(code.Persona).InputMissingRequired("patch is required")
+	}
+	contactID = strings.TrimSpace(contactID)
+	filter := baseFilter(tenantID, ownerUID)
+	filter["_id"] = contactID
+	opts := options.FindOneAndUpdate().SetReturnDocument(options.After)
+	var out entity.CRMContact
+	err := r.collection.FindOneAndUpdate(ctx, filter, bson.M{"$set": patch}, opts).Decode(&out)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, app.For(code.Persona).ResNotFound("crm contact not found")
+		}
+		return nil, err
+	}
+	return &out, nil
+}
+
+func (r *mongoRepository) Delete(ctx context.Context, tenantID, ownerUID, contactID string) error {
+	if r.collection == nil {
+		return app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	contactID = strings.TrimSpace(contactID)
+	if contactID == "" {
+		return app.For(code.Persona).InputMissingRequired("contact_id is required")
+	}
+	filter := baseFilter(tenantID, ownerUID)
+	filter["_id"] = contactID
+	_, err := r.collection.DeleteOne(ctx, filter)
+	return err
+}
+
+func (r *mongoRepository) List(ctx context.Context, tenantID, ownerUID string, filter domrepo.ListFilter) ([]entity.CRMContact, int, error) {
+	if r.collection == nil {
+		return nil, 0, app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	query := baseFilter(tenantID, ownerUID)
+	if filter.BrandID != "" {
+		query["brand_id"] = filter.BrandID
+	}
+	if filter.Status != "" {
+		query["status"] = filter.Status
+	}
+	if filter.Tag != "" {
+		query["tags"] = filter.Tag
+	}
+
+	limit := filter.Limit
+	if limit <= 0 {
+		limit = 20
+	}
+	if limit > 100 {
+		limit = 100
+	}
+	skip := filter.Offset
+	if skip < 0 {
+		skip = 0
+	}
+
+	total, err := r.collection.CountDocuments(ctx, query)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	opts := options.Find().
+		SetSort(bson.D{{Key: "create_at", Value: -1}}).
+		SetSkip(int64(skip)).
+		SetLimit(int64(limit))
+	cur, err := r.collection.Find(ctx, query, opts)
+	if err != nil {
+		return nil, 0, err
+	}
+	defer cur.Close(ctx)
+
+	var out []entity.CRMContact
+	if err := cur.All(ctx, &out); err != nil {
+		return nil, 0, err
+	}
+	return out, int(total), nil
+}
+
+func (r *mongoRepository) UpsertByAuthor(ctx context.Context, contact *entity.CRMContact) (*entity.CRMContact, error) {
+	if r.collection == nil {
+		return nil, app.For(code.Persona).DBUnavailable("Mongo is not configured")
+	}
+	if contact == nil {
+		return nil, app.For(code.Persona).InputMissingRequired("contact is required")
+	}
+	filter := baseFilter(contact.TenantID, contact.OwnerUID)
+	filter["author_id"] = contact.AuthorID
+	update := bson.M{"$set": contact}
+	opts := options.FindOneAndUpdate().
+		SetUpsert(true).
+		SetReturnDocument(options.After)
+	var out entity.CRMContact
+	err := r.collection.FindOneAndUpdate(ctx, filter, update, opts).Decode(&out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}

backend/internal/model/crm_contact/usecase/usecase.go

@@ -0,0 +1,176 @@
+package usecase
+
+import (
+	"context"
+	"strings"
+
+	"haixun-backend/internal/library/clock"
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+	"haixun-backend/internal/model/crm_contact/domain/entity"
+	domrepo "haixun-backend/internal/model/crm_contact/domain/repository"
+	domusecase "haixun-backend/internal/model/crm_contact/domain/usecase"
+
+	"github.com/google/uuid"
+)
+
+type crmContactUseCase struct {
+	repo domrepo.Repository
+}
+
+func NewUseCase(repo domrepo.Repository) domusecase.UseCase {
+	return &crmContactUseCase{repo: repo}
+}
+
+func (u *crmContactUseCase) Create(ctx context.Context, tenantID, ownerUID, brandID, authorID, authorName string) (*domusecase.CRMContactSummary, error) {
+	if err := requireActor(tenantID, ownerUID); err != nil {
+		return nil, err
+	}
+	authorID = strings.TrimSpace(authorID)
+	if authorID == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("author_id is required")
+	}
+	authorName = strings.TrimSpace(authorName)
+	if authorName == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("author_name is required")
+	}
+	now := clock.NowUnixNano()
+	contact := &entity.CRMContact{
+		ID:         uuid.NewString(),
+		TenantID:   tenantID,
+		OwnerUID:   ownerUID,
+		BrandID:    strings.TrimSpace(brandID),
+		AuthorID:   authorID,
+		AuthorName: authorName,
+		Status:     entity.ContactStatusLead,
+		CreateAt:   now,
+		UpdateAt:   now,
+	}
+	if err := u.repo.Create(ctx, contact); err != nil {
+		return nil, err
+	}
+	summary := toSummary(*contact)
+	return &summary, nil
+}
+
+func (u *crmContactUseCase) Get(ctx context.Context, tenantID, ownerUID, contactID string) (*domusecase.CRMContactSummary, error) {
+	if err := requireActor(tenantID, ownerUID); err != nil {
+		return nil, err
+	}
+	contactID = strings.TrimSpace(contactID)
+	if contactID == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("contact_id is required")
+	}
+	item, err := u.repo.Get(ctx, tenantID, ownerUID, contactID)
+	if err != nil {
+		return nil, err
+	}
+	summary := toSummary(*item)
+	return &summary, nil
+}
+
+func (u *crmContactUseCase) Update(ctx context.Context, req domusecase.UpdateRequest) (*domusecase.CRMContactSummary, error) {
+	if err := requireActor(req.TenantID, req.OwnerUID); err != nil {
+		return nil, err
+	}
+	contactID := strings.TrimSpace(req.ContactID)
+	if contactID == "" {
+		return nil, app.For(code.Persona).InputMissingRequired("contact_id is required")
+	}
+	patch := map[string]interface{}{}
+	if req.Notes != nil {
+		patch["notes"] = strings.TrimSpace(*req.Notes)
+	}
+	if req.Tags != nil {
+		patch["tags"] = *req.Tags
+	}
+	if req.Status != nil {
+		status := strings.TrimSpace(*req.Status)
+		if status != "" && status != entity.ContactStatusLead && status != entity.ContactStatusContacted && status != entity.ContactStatusResponded && status != entity.ContactStatusConverted && status != entity.ContactStatusArchived {
+			return nil, app.For(code.Persona).InputInvalidFormat("invalid contact status")
+		}
+		if status != "" {
+			patch["status"] = status
+		}
+	}
+	if len(patch) == 0 {
+		return nil, app.For(code.Persona).InputMissingRequired("no fields to update")
+	}
+	patch["update_at"] = clock.NowUnixNano()
+	item, err := u.repo.Update(ctx, req.TenantID, req.OwnerUID, contactID, patch)
+	if err != nil {
+		return nil, err
+	}
+	summary := toSummary(*item)
+	return &summary, nil
+}
+
+func (u *crmContactUseCase) Delete(ctx context.Context, tenantID, ownerUID, contactID string) error {
+	if err := requireActor(tenantID, ownerUID); err != nil {
+		return err
+	}
+	contactID = strings.TrimSpace(contactID)
+	if contactID == "" {
+		return app.For(code.Persona).InputMissingRequired("contact_id is required")
+	}
+	return u.repo.Delete(ctx, tenantID, ownerUID, contactID)
+}
+
+func (u *crmContactUseCase) List(ctx context.Context, req domusecase.ListRequest) ([]domusecase.CRMContactSummary, int, error) {
+	if err := requireActor(req.TenantID, req.OwnerUID); err != nil {
+		return nil, 0, err
+	}
+	page := req.Page
+	pageSize := req.PageSize
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 {
+		pageSize = 20
+	}
+	if pageSize > 100 {
+		pageSize = 100
+	}
+	filter := domrepo.ListFilter{
+		BrandID: strings.TrimSpace(req.BrandID),
+		Status:  strings.TrimSpace(req.Status),
+		Tag:     strings.TrimSpace(req.Tag),
+		Limit:   pageSize,
+		Offset:  (page - 1) * pageSize,
+	}
+	items, total, err := u.repo.List(ctx, req.TenantID, req.OwnerUID, filter)
+	if err != nil {
+		return nil, 0, err
+	}
+	out := make([]domusecase.CRMContactSummary, 0, len(items))
+	for _, item := range items {
+		out = append(out, toSummary(item))
+	}
+	return out, total, nil
+}
+
+func requireActor(tenantID, ownerUID string) error {
+	if strings.TrimSpace(tenantID) == "" || strings.TrimSpace(ownerUID) == "" {
+		return app.For(code.Auth).AuthUnauthorized("missing actor")
+	}
+	return nil
+}
+
+func toSummary(item entity.CRMContact) domusecase.CRMContactSummary {
+	return domusecase.CRMContactSummary{
+		ID:              item.ID,
+		BrandID:         item.BrandID,
+		AuthorID:        item.AuthorID,
+		AuthorName:      item.AuthorName,
+		AuthorAvatar:    item.AuthorAvatar,
+		AuthorFollowers: item.AuthorFollowers,
+		ScanPostID:      item.ScanPostID,
+		Notes:           item.Notes,
+		Tags:            item.Tags,
+		Status:          item.Status,
+		OutreachCount:   item.OutreachCount,
+		LastContactedAt: item.LastContactedAt,
+		CreateAt:        item.CreateAt,
+		UpdateAt:        item.UpdateAt,
+	}
+}

backend/internal/model/job/domain/usecase/job.go

@@ -98,6 +98,8 @@ type UseCase interface {
 	EnsureAnalyzeCopyMissionTemplate(ctx context.Context) error
 	EnsureGenerateCopyMatrixTemplate(ctx context.Context) error
 	EnsureGenerateCopyDraftTemplate(ctx context.Context) error
+	EnsureRefreshThreadsTokenTemplate(ctx context.Context) error
+	EnsurePublishAnalyticsTemplate(ctx context.Context) error
 
 	CreateRun(ctx context.Context, req CreateRunRequest) (*entity.Run, error)
 	GetRun(ctx context.Context, jobID string) (*entity.Run, error)

backend/internal/model/job/usecase/usecase.go

@@ -14,15 +14,17 @@ import (
 )
 
 const (
-	demoTemplateType               = "demo_long_task"
+	demoTemplateType                = "demo_long_task"
-	style8DTemplateType            = "style-8d"
+	style8DTemplateType             = "style-8d"
-	expandGraphTemplateType        = "expand-graph"
+	expandGraphTemplateType         = "expand-graph"
-	placementScanTemplateType      = "placement-scan"
+	placementScanTemplateType       = "placement-scan"
-	scanViralTemplateType          = "scan-viral"
+	scanViralTemplateType           = "scan-viral"
-	analyzeCopyMissionTemplateType = "analyze-copy-mission"
+	analyzeCopyMissionTemplateType  = "analyze-copy-mission"
-	generateCopyMatrixTemplateType = "generate-copy-matrix"
+	generateCopyMatrixTemplateType  = "generate-copy-matrix"
-	generateCopyDraftTemplateType  = "generate-copy-draft"
+	generateCopyDraftTemplateType   = "generate-copy-draft"
-	style8DWorkerType              = "node"
+	refreshThreadsTokenTemplateType = "refresh-threads-token"
+	publishAnalyticsTemplateType    = "publish-analytics"
+	style8DWorkerType               = "node"
 )
 
 type UseCase = domusecase.UseCase
@@ -99,6 +101,16 @@ func (u *jobUseCase) EnsureGenerateCopyDraftTemplate(ctx context.Context) error
 	return err
 }
 
+func (u *jobUseCase) EnsureRefreshThreadsTokenTemplate(ctx context.Context) error {
+	_, err := u.templates.Upsert(ctx, refreshThreadsTokenTemplate())
+	return err
+}
+
+func (u *jobUseCase) EnsurePublishAnalyticsTemplate(ctx context.Context) error {
+	_, err := u.templates.Upsert(ctx, publishAnalyticsTemplate())
+	return err
+}
+
 func analyzeCopyMissionTemplate() *entity.Template {
 	return &entity.Template{
 		Type:              analyzeCopyMissionTemplateType,
@@ -177,6 +189,54 @@ func generateCopyDraftTemplate() *entity.Template {
 	}
 }
 
+func refreshThreadsTokenTemplate() *entity.Template {
+	return &entity.Template{
+		Type:              refreshThreadsTokenTemplateType,
+		Version:           1,
+		Name:              "Refresh Threads Token",
+		Description:       "Refresh Threads API access token before expiry",
+		Enabled:           true,
+		Repeatable:        true,
+		ConcurrencyPolicy: string(enum.ConcurrencyAllowParallel),
+		DedupeKeys:        []string{"account_id"},
+		TimeoutSeconds:    120,
+		CancelPolicy: entity.CancelPolicy{
+			Supported: false,
+		},
+		RetryPolicy: entity.RetryPolicy{
+			MaxAttempts:    3,
+			BackoffSeconds: []int{30, 120, 300},
+		},
+		Steps: []entity.TemplateStep{
+			{ID: "refresh", Name: "Refresh token", WorkerType: string(enum.WorkerTypeGo), TimeoutSeconds: 120, Cancelable: false},
+		},
+	}
+}
+
+func publishAnalyticsTemplate() *entity.Template {
+	return &entity.Template{
+		Type:              publishAnalyticsTemplateType,
+		Version:           1,
+		Name:              "Publish Analytics Check",
+		Description:       "Check Threads API insights for a published post",
+		Enabled:           true,
+		Repeatable:        true,
+		ConcurrencyPolicy: string(enum.ConcurrencyAllowParallel),
+		DedupeKeys:        []string{"media_id", "checkpoint"},
+		TimeoutSeconds:    120,
+		CancelPolicy: entity.CancelPolicy{
+			Supported: false,
+		},
+		RetryPolicy: entity.RetryPolicy{
+			MaxAttempts:    2,
+			BackoffSeconds: []int{60},
+		},
+		Steps: []entity.TemplateStep{
+			{ID: "check", Name: "Check analytics", WorkerType: string(enum.WorkerTypeGo), TimeoutSeconds: 120, Cancelable: false},
+		},
+	}
+}
+
 func scanViralTemplate() *entity.Template {
 	return &entity.Template{
 		Type:              scanViralTemplateType,

backend/internal/model/publish_analytics/domain/entity/analytics.go

@@ -0,0 +1,29 @@
+package entity
+
+const CollectionName = "publish_analytics"
+
+type PublishAnalytics struct {
+	ID              string `bson:"_id"`
+	TenantID        string `bson:"tenant_id"`
+	OwnerUID        string `bson:"owner_uid"`
+	BrandID         string `bson:"brand_id,omitempty"`
+	PersonaID       string `bson:"persona_id,omitempty"`
+	MediaID         string `bson:"media_id"`
+	Permalink       string `bson:"permalink,omitempty"`
+	PublishedAt     int64  `bson:"published_at"`
+	Checkpoint      string `bson:"checkpoint"`
+	LikeCount       int    `bson:"like_count,omitempty"`
+	ReplyCount      int    `bson:"reply_count,omitempty"`
+	RepostCount     int    `bson:"repost_count,omitempty"`
+	QuoteCount      int    `bson:"quote_count,omitempty"`
+	ImpressionCount int    `bson:"impression_count,omitempty"`
+	ReachCount      int    `bson:"reach_count,omitempty"`
+	CheckedAt       int64  `bson:"checked_at"`
+	CreateAt        int64  `bson:"create_at"`
+}
+
+const (
+	Checkpoint1h  = "+1h"
+	Checkpoint24h = "+24h"
+	Checkpoint7d  = "+7d"
+)

backend/internal/model/publish_analytics/domain/repository/repository.go

@@ -0,0 +1,15 @@
+package repository
+
+import (
+	"context"
+
+	"haixun-backend/internal/model/publish_analytics/domain/entity"
+)
+
+type Repository interface {
+	EnsureIndexes(ctx context.Context) error
+	Create(ctx context.Context, analytics *entity.PublishAnalytics) error
+	Get(ctx context.Context, tenantID, ownerUID, analyticsID string) (*entity.PublishAnalytics, error)
+	ListByMedia(ctx context.Context, tenantID, ownerUID, mediaID string) ([]entity.PublishAnalytics, error)
+	Upsert(ctx context.Context, analytics *entity.PublishAnalytics) (*entity.PublishAnalytics, error)
+}

backend/internal/model/publish_analytics/domain/usecase/usecase.go

@@ -0,0 +1,24 @@
+package usecase
+
+import "context"
+
+type PublishAnalyticsSummary struct {
+	ID              string
+	MediaID         string
+	Permalink       string
+	PublishedAt     int64
+	Checkpoint      string
+	LikeCount       int
+	ReplyCount      int
+	RepostCount     int
+	QuoteCount      int
+	ImpressionCount int
+	ReachCount      int
+	CheckedAt       int64
+	CreateAt        int64
+}
+
+type UseCase interface {
+	RecordCheckpoint(ctx context.Context, tenantID, ownerUID string, summary PublishAnalyticsSummary) (*PublishAnalyticsSummary, error)
+	ListByMedia(ctx context.Context, tenantID, ownerUID, mediaID string) ([]PublishAnalyticsSummary, error)
+}

backend/internal/model/publish_analytics/repository/mongo.go

@@ -0,0 +1,125 @@
+package repository
+
+import (
+	"context"
+	"strings"
+
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+	"haixun-backend/internal/model/publish_analytics/domain/entity"
+	domrepo "haixun-backend/internal/model/publish_analytics/domain/repository"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+type mongoRepository struct {
+	collection *mongo.Collection
+}
+
+func NewMongoRepository(db *mongo.Database) domrepo.Repository {
+	if db == nil {
+		return &mongoRepository{}
+	}
+	return &mongoRepository{collection: db.Collection(entity.CollectionName)}
+}
+
+func (r *mongoRepository) EnsureIndexes(ctx context.Context) error {
+	if r.collection == nil {
+		return nil
+	}
+	_, err := r.collection.Indexes().CreateMany(ctx, []mongo.IndexModel{
+		{
+			Keys: bson.D{
+				{Key: "tenant_id", Value: 1},
+				{Key: "owner_uid", Value: 1},
+				{Key: "media_id", Value: 1},
+				{Key: "checkpoint", Value: 1},
+			},
+		},
+	})
+	return err
+}
+
+func actorFilter(tenantID, ownerUID string) bson.M {
+	return bson.M{
+		"tenant_id": strings.TrimSpace(tenantID),
+		"owner_uid": strings.TrimSpace(ownerUID),
+	}
+}
+
+func (r *mongoRepository) Create(ctx context.Context, analytics *entity.PublishAnalytics) error {
+	if r.collection == nil {
+		return app.For(code.AI).DBUnavailable("Mongo is not configured")
+	}
+	if analytics == nil {
+		return app.For(code.AI).InputMissingRequired("analytics is required")
+	}
+	_, err := r.collection.InsertOne(ctx, analytics)
+	return err
+}
+
+func (r *mongoRepository) Get(ctx context.Context, tenantID, ownerUID, analyticsID string) (*entity.PublishAnalytics, error) {
+	if r.collection == nil {
+		return nil, app.For(code.AI).DBUnavailable("Mongo is not configured")
+	}
+	analyticsID = strings.TrimSpace(analyticsID)
+	if analyticsID == "" {
+		return nil, app.For(code.AI).InputMissingRequired("analytics_id is required")
+	}
+	filter := actorFilter(tenantID, ownerUID)
+	filter["_id"] = analyticsID
+	var out entity.PublishAnalytics
+	err := r.collection.FindOne(ctx, filter).Decode(&out)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return nil, app.For(code.AI).ResNotFound("publish analytics not found")
+		}
+		return nil, err
+	}
+	return &out, nil
+}
+
+func (r *mongoRepository) ListByMedia(ctx context.Context, tenantID, ownerUID, mediaID string) ([]entity.PublishAnalytics, error) {
+	if r.collection == nil {
+		return nil, app.For(code.AI).DBUnavailable("Mongo is not configured")
+	}
+	mediaID = strings.TrimSpace(mediaID)
+	if mediaID == "" {
+		return nil, app.For(code.AI).InputMissingRequired("media_id is required")
+	}
+	filter := actorFilter(tenantID, ownerUID)
+	filter["media_id"] = mediaID
+	opts := options.Find().SetSort(bson.D{{Key: "checked_at", Value: -1}})
+	cur, err := r.collection.Find(ctx, filter, opts)
+	if err != nil {
+		return nil, err
+	}
+	defer cur.Close(ctx)
+	var out []entity.PublishAnalytics
+	if err := cur.All(ctx, &out); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (r *mongoRepository) Upsert(ctx context.Context, analytics *entity.PublishAnalytics) (*entity.PublishAnalytics, error) {
+	if r.collection == nil {
+		return nil, app.For(code.AI).DBUnavailable("Mongo is not configured")
+	}
+	if analytics == nil {
+		return nil, app.For(code.AI).InputMissingRequired("analytics is required")
+	}
+	if analytics.ID == "" {
+		return nil, app.For(code.AI).InputMissingRequired("analytics id is required")
+	}
+
+	filter := bson.M{"_id": analytics.ID}
+	opts := options.Replace().SetUpsert(true)
+	_, err := r.collection.ReplaceOne(ctx, filter, analytics, opts)
+	if err != nil {
+		return nil, err
+	}
+	return analytics, nil
+}

backend/internal/model/publish_analytics/usecase/usecase.go

@@ -0,0 +1,105 @@
+package usecase
+
+import (
+	"context"
+	"strings"
+
+	"haixun-backend/internal/library/clock"
+	app "haixun-backend/internal/library/errors"
+	"haixun-backend/internal/library/errors/code"
+	"haixun-backend/internal/model/publish_analytics/domain/entity"
+	domrepo "haixun-backend/internal/model/publish_analytics/domain/repository"
+	domusecase "haixun-backend/internal/model/publish_analytics/domain/usecase"
+
+	"github.com/google/uuid"
+)
+
+type publishAnalyticsUseCase struct {
+	repo domrepo.Repository
+}
+
+func NewUseCase(repo domrepo.Repository) domusecase.UseCase {
+	return &publishAnalyticsUseCase{repo: repo}
+}
+
+func (u *publishAnalyticsUseCase) RecordCheckpoint(ctx context.Context, tenantID, ownerUID string, summary domusecase.PublishAnalyticsSummary) (*domusecase.PublishAnalyticsSummary, error) {
+	tenantID = strings.TrimSpace(tenantID)
+	ownerUID = strings.TrimSpace(ownerUID)
+	if tenantID == "" || ownerUID == "" {
+		return nil, app.For(code.AI).AuthUnauthorized("missing actor")
+	}
+	mediaID := strings.TrimSpace(summary.MediaID)
+	if mediaID == "" {
+		return nil, app.For(code.AI).InputMissingRequired("media_id is required")
+	}
+	checkpoint := strings.TrimSpace(summary.Checkpoint)
+	if checkpoint == "" {
+		return nil, app.For(code.AI).InputMissingRequired("checkpoint is required")
+	}
+
+	now := clock.NowUnixNano()
+	analytics := &entity.PublishAnalytics{
+		ID:              uuid.NewString(),
+		TenantID:        tenantID,
+		OwnerUID:        ownerUID,
+		MediaID:         mediaID,
+		Permalink:       strings.TrimSpace(summary.Permalink),
+		PublishedAt:     summary.PublishedAt,
+		Checkpoint:      checkpoint,
+		LikeCount:       summary.LikeCount,
+		ReplyCount:      summary.ReplyCount,
+		RepostCount:     summary.RepostCount,
+		QuoteCount:      summary.QuoteCount,
+		ImpressionCount: summary.ImpressionCount,
+		ReachCount:      summary.ReachCount,
+		CheckedAt:       now,
+		CreateAt:        now,
+	}
+
+	created, err := u.repo.Upsert(ctx, analytics)
+	if err != nil {
+		return nil, err
+	}
+	out := toSummary(*created)
+	return &out, nil
+}
+
+func (u *publishAnalyticsUseCase) ListByMedia(ctx context.Context, tenantID, ownerUID, mediaID string) ([]domusecase.PublishAnalyticsSummary, error) {
+	tenantID = strings.TrimSpace(tenantID)
+	ownerUID = strings.TrimSpace(ownerUID)
+	mediaID = strings.TrimSpace(mediaID)
+	if tenantID == "" || ownerUID == "" {
+		return nil, app.For(code.AI).AuthUnauthorized("missing actor")
+	}
+	if mediaID == "" {
+		return nil, app.For(code.AI).InputMissingRequired("media_id is required")
+	}
+
+	items, err := u.repo.ListByMedia(ctx, tenantID, ownerUID, mediaID)
+	if err != nil {
+		return nil, err
+	}
+	out := make([]domusecase.PublishAnalyticsSummary, 0, len(items))
+	for _, item := range items {
+		out = append(out, toSummary(item))
+	}
+	return out, nil
+}
+
+func toSummary(item entity.PublishAnalytics) domusecase.PublishAnalyticsSummary {
+	return domusecase.PublishAnalyticsSummary{
+		ID:              item.ID,
+		MediaID:         item.MediaID,
+		Permalink:       item.Permalink,
+		PublishedAt:     item.PublishedAt,
+		Checkpoint:      item.Checkpoint,
+		LikeCount:       item.LikeCount,
+		ReplyCount:      item.ReplyCount,
+		RepostCount:     item.RepostCount,
+		QuoteCount:      item.QuoteCount,
+		ImpressionCount: item.ImpressionCount,
+		ReachCount:      item.ReachCount,
+		CheckedAt:       item.CheckedAt,
+		CreateAt:        item.CreateAt,
+	}
+}

backend/internal/model/scan_post/domain/entity/post.go

@@ -15,40 +15,47 @@ type ScanReply struct {
 }
 
 type ScanPost struct {
-	ID                 string      `bson:"_id"`
+	ID                   string      `bson:"_id"`
-	TenantID           string      `bson:"tenant_id"`
+	TenantID             string      `bson:"tenant_id"`
-	OwnerUID           string      `bson:"owner_uid"`
+	OwnerUID             string      `bson:"owner_uid"`
-	BrandID            string      `bson:"brand_id"`
+	BrandID              string      `bson:"brand_id"`
-	TopicID            string      `bson:"topic_id,omitempty"`
+	TopicID              string      `bson:"topic_id,omitempty"`
-	LegacyPersonaID    string      `bson:"persona_id,omitempty"`
+	LegacyPersonaID      string      `bson:"persona_id,omitempty"`
-	CopyMissionID      string      `bson:"copy_mission_id,omitempty"`
+	CopyMissionID        string      `bson:"copy_mission_id,omitempty"`
-	Flow               string      `bson:"flow,omitempty"`
+	Flow                 string      `bson:"flow,omitempty"`
-	GraphID            string      `bson:"graph_id"`
+	GraphID              string      `bson:"graph_id"`
-	ScanJobID          string      `bson:"scan_job_id"`
+	ScanJobID            string      `bson:"scan_job_id"`
-	GraphNodeID        string      `bson:"graph_node_id"`
+	GraphNodeID          string      `bson:"graph_node_id"`
-	SearchTag          string      `bson:"search_tag"`
+	SearchTag            string      `bson:"search_tag"`
-	QueryDimension     string      `bson:"query_dimension"`
+	QueryDimension       string      `bson:"query_dimension"`
-	ExternalID         string      `bson:"external_id"`
+	ExternalID           string      `bson:"external_id"`
-	Permalink          string      `bson:"permalink"`
+	Permalink            string      `bson:"permalink"`
-	Author             string      `bson:"author"`
+	Author               string      `bson:"author"`
-	AuthorVerified     bool        `bson:"author_verified,omitempty"`
+	AuthorID             string      `bson:"author_id,omitempty"`
-	FollowerCount      int         `bson:"follower_count,omitempty"`
+	AuthorAvatar         string      `bson:"author_avatar,omitempty"`
-	Text               string      `bson:"text"`
+	AuthorVerified       bool        `bson:"author_verified,omitempty"`
-	Priority           string      `bson:"priority"`
+	FollowerCount        int         `bson:"follower_count,omitempty"`
-	LikeCount          int         `bson:"like_count,omitempty"`
+	AuthorFollowers      int         `bson:"author_followers,omitempty"`
-	ReplyCount         int         `bson:"reply_count,omitempty"`
+	Text                 string      `bson:"text"`
-	EngagementScore    int         `bson:"engagement_score,omitempty"`
+	Priority             string      `bson:"priority"`
-	PlacementScore     int         `bson:"placement_score"`
+	LikeCount            int         `bson:"like_count,omitempty"`
-	ProductFitScore    int         `bson:"product_fit_score"`
+	ReplyCount           int         `bson:"reply_count,omitempty"`
-	SolvedByProduct    bool        `bson:"solved_by_product"`
+	EngagementScore      int         `bson:"engagement_score,omitempty"`
-	Source             string      `bson:"source"`
+	PlacementScore       int         `bson:"placement_score"`
-	OutreachStatus     string      `bson:"outreach_status,omitempty"`
+	ProductFitScore      int         `bson:"product_fit_score"`
-	PublishedReplyID   string      `bson:"published_reply_id,omitempty"`
+	SolvedByProduct      bool        `bson:"solved_by_product"`
-	PublishedPermalink string      `bson:"published_permalink,omitempty"`
+	Source               string      `bson:"source"`
-	OutreachUpdateAt   int64       `bson:"outreach_update_at,omitempty"`
+	OutreachStatus       string      `bson:"outreach_status,omitempty"`
-	PostedAt           string      `bson:"posted_at,omitempty"`
+	PublishedReplyID     string      `bson:"published_reply_id,omitempty"`
-	Replies            []ScanReply `bson:"replies,omitempty"`
+	PublishedPermalink   string      `bson:"published_permalink,omitempty"`
-	CreateAt           int64       `bson:"create_at"`
+	OutreachUpdateAt     int64       `bson:"outreach_update_at,omitempty"`
+	PostedAt             string      `bson:"posted_at,omitempty"`
+	Replies              []ScanReply `bson:"replies,omitempty"`
+	Embedding            []float32   `bson:"embedding,omitempty"`
+	SemanticScore        int         `bson:"semantic_score,omitempty"`
+	EngagementPredicted  int         `bson:"engagement_predicted,omitempty"`
+	AudienceQualityScore int         `bson:"audience_quality_score,omitempty"`
+	CreateAt             int64       `bson:"create_at"`
 }
 
 const (

backend/internal/model/scan_post/domain/repository/repository.go

@@ -11,6 +11,7 @@ type ListFilter struct {
 	TopicID       string
 	Priority      string
 	ProductFitMin int
+	SemanticMin   int
 	Recent7dOnly  bool
 	Limit         int
 }

backend/internal/model/scan_post/domain/usecase/usecase.go

@@ -16,36 +16,43 @@ type ScanReplySummary struct {
 }
 
 type ScanPostSummary struct {
-	ID                 string
+	ID                   string
-	BrandID            string
+	BrandID              string
-	PersonaID          string
+	PersonaID            string
-	CopyMissionID      string
+	CopyMissionID        string
-	Flow               string
+	Flow                 string
-	GraphNodeID        string
+	GraphNodeID          string
-	SearchTag          string
+	SearchTag            string
-	QueryDimension     string
+	QueryDimension       string
-	ExternalID         string
+	ExternalID           string
-	Permalink          string
+	Permalink            string
-	Author             string
+	Author               string
-	AuthorVerified     bool
+	AuthorID             string
-	FollowerCount      int
+	AuthorAvatar         string
-	Text               string
+	AuthorVerified       bool
-	Priority           string
+	FollowerCount        int
-	LikeCount          int
+	AuthorFollowers      int
-	ReplyCount         int
+	Text                 string
-	EngagementScore    int
+	Priority             string
-	PlacementScore     int
+	LikeCount            int
-	ProductFitScore    int
+	ReplyCount           int
-	SolvedByProduct    bool
+	EngagementScore      int
-	Source             string
+	PlacementScore       int
-	ScanJobID          string
+	ProductFitScore      int
-	OutreachStatus     string
+	SolvedByProduct      bool
-	PublishedReplyID   string
+	Source               string
-	PublishedPermalink string
+	ScanJobID            string
-	OutreachUpdateAt   int64
+	OutreachStatus       string
-	PostedAt           string
+	PublishedReplyID     string
-	Replies            []ScanReplySummary
+	PublishedPermalink   string
-	CreateAt           int64
+	OutreachUpdateAt     int64
+	PostedAt             string
+	Replies              []ScanReplySummary
+	Embedding            []float32
+	SemanticScore        int
+	EngagementPredicted  int
+	AudienceQualityScore int
+	CreateAt             int64
 }
 
 type ListRequest struct {
@@ -55,6 +62,7 @@ type ListRequest struct {
 	TopicID       string
 	Priority      string
 	ProductFitMin int
+	SemanticMin   int
 	Recent7dOnly  bool
 	Limit         int
 }

backend/internal/model/scan_post/repository/mongo.go

@@ -447,6 +447,9 @@ func (r *mongoRepository) List(ctx context.Context, tenantID, ownerUID string, f
 	if filter.ProductFitMin > 0 {
 		query["product_fit_score"] = bson.M{"$gte": filter.ProductFitMin}
 	}
+	if filter.SemanticMin > 0 {
+		query["semantic_score"] = bson.M{"$gte": filter.SemanticMin}
+	}
 	limit := filter.Limit
 	if limit <= 0 {
 		limit = 100

backend/internal/model/scan_post/usecase/usecase.go

@@ -43,28 +43,35 @@ func (u *scanPostUseCase) ReplaceFromViralScan(ctx context.Context, req domuseca
 	entities := make([]entity.ScanPost, 0, len(req.Posts))
 	for _, item := range req.Posts {
 		entities = append(entities, entity.ScanPost{
-			ID:              uuid.NewString(),
+			ID:                   uuid.NewString(),
-			TenantID:        req.TenantID,
+			TenantID:             req.TenantID,
-			OwnerUID:        req.OwnerUID,
+			OwnerUID:             req.OwnerUID,
-			LegacyPersonaID: req.PersonaID,
+			LegacyPersonaID:      req.PersonaID,
-			CopyMissionID:   strings.TrimSpace(req.CopyMissionID),
+			CopyMissionID:        strings.TrimSpace(req.CopyMissionID),
-			Flow:            entity.FlowViral,
+			Flow:                 entity.FlowViral,
-			ScanJobID:       req.ScanJobID,
+			ScanJobID:            req.ScanJobID,
-			SearchTag:       item.SearchTag,
+			SearchTag:            item.SearchTag,
-			ExternalID:      item.ExternalID,
+			ExternalID:           item.ExternalID,
-			Permalink:       item.Permalink,
+			Permalink:            item.Permalink,
-			Author:          item.Author,
+			Author:               item.Author,
-			AuthorVerified:  item.AuthorVerified,
+			AuthorID:             item.AuthorID,
-			FollowerCount:   item.FollowerCount,
+			AuthorAvatar:         item.AuthorAvatar,
-			Text:            item.Text,
+			AuthorVerified:       item.AuthorVerified,
-			Priority:        item.Priority,
+			FollowerCount:        item.FollowerCount,
-			LikeCount:       item.LikeCount,
+			AuthorFollowers:      item.AuthorFollowers,
-			ReplyCount:      item.ReplyCount,
+			Text:                 item.Text,
-			EngagementScore: item.EngagementScore,
+			Priority:             item.Priority,
-			PlacementScore:  item.PlacementScore,
+			LikeCount:            item.LikeCount,
-			Source:          string(item.Source),
+			ReplyCount:           item.ReplyCount,
-			Replies:         toReplyEntities(item.Replies),
+			EngagementScore:      item.EngagementScore,
-			CreateAt:        now,
+			PlacementScore:       item.PlacementScore,
+			Embedding:            item.Embedding,
+			SemanticScore:        item.SemanticScore,
+			EngagementPredicted:  item.EngagementPredicted,
+			AudienceQualityScore: item.AudienceQualityScore,
+			Source:               string(item.Source),
+			Replies:              toReplyEntities(item.Replies),
+			CreateAt:             now,
 		})
 	}
 	if err := u.repo.ReplaceForViralScan(ctx, req.TenantID, req.OwnerUID, req.PersonaID, req.CopyMissionID, req.ScanJobID, entities); err != nil {
@@ -128,30 +135,37 @@ func placementCandidatesToEntities(tenantID, ownerUID, brandID, topicID, graphID
 			continue
 		}
 		entities = append(entities, entity.ScanPost{
-			ID:              uuid.NewString(),
+			ID:                   uuid.NewString(),
-			TenantID:        tenantID,
+			TenantID:             tenantID,
-			OwnerUID:        ownerUID,
+			OwnerUID:             ownerUID,
-			BrandID:         brandID,
+			BrandID:              brandID,
-			TopicID:         strings.TrimSpace(topicID),
+			TopicID:              strings.TrimSpace(topicID),
-			Flow:            entity.FlowPlacement,
+			Flow:                 entity.FlowPlacement,
-			GraphID:         graphID,
+			GraphID:              graphID,
-			ScanJobID:       scanJobID,
+			ScanJobID:            scanJobID,
-			GraphNodeID:     item.GraphNodeID,
+			GraphNodeID:          item.GraphNodeID,
-			SearchTag:       item.SearchTag,
+			SearchTag:            item.SearchTag,
-			QueryDimension:  string(item.QueryDimension),
+			QueryDimension:       string(item.QueryDimension),
-			ExternalID:      item.ExternalID,
+			ExternalID:           item.ExternalID,
-			Permalink:       item.Permalink,
+			Permalink:            item.Permalink,
-			Author:          item.Author,
+			Author:               item.Author,
-			Text:            item.Text,
+			AuthorID:             item.AuthorID,
-			Priority:        item.Priority,
+			AuthorAvatar:         item.AuthorAvatar,
-			PlacementScore:  item.PlacementScore,
+			AuthorFollowers:      item.AuthorFollowers,
-			ProductFitScore: item.ProductFitScore,
+			Text:                 item.Text,
-			SolvedByProduct: item.SolvedByProduct,
+			Priority:             item.Priority,
-			Source:          string(item.Source),
+			PlacementScore:       item.PlacementScore,
-			OutreachStatus:  entity.OutreachStatusPending,
+			ProductFitScore:      item.ProductFitScore,
-			PostedAt:        strings.TrimSpace(item.PostedAt),
+			SolvedByProduct:      item.SolvedByProduct,
-			Replies:         toReplyEntities(item.Replies),
+			Source:               string(item.Source),
-			CreateAt:        now,
+			OutreachStatus:       entity.OutreachStatusPending,
+			PostedAt:             strings.TrimSpace(item.PostedAt),
+			Replies:              toReplyEntities(item.Replies),
+			Embedding:            item.Embedding,
+			SemanticScore:        item.SemanticScore,
+			EngagementPredicted:  item.EngagementPredicted,
+			AudienceQualityScore: item.AudienceQualityScore,
+			CreateAt:             now,
 		})
 	}
 	return entities
@@ -276,6 +290,7 @@ func (u *scanPostUseCase) List(ctx context.Context, req domusecase.ListRequest)
 		TopicID:       req.TopicID,
 		Priority:      req.Priority,
 		ProductFitMin: req.ProductFitMin,
+		SemanticMin:   req.SemanticMin,
 		Recent7dOnly:  req.Recent7dOnly,
 		Limit:         req.Limit,
 	})
@@ -361,35 +376,42 @@ func toReplySummaries(replies []entity.ScanReply) []domusecase.ScanReplySummary
 
 func toSummary(item entity.ScanPost) domusecase.ScanPostSummary {
 	return domusecase.ScanPostSummary{
-		ID:                 item.ID,
+		ID:                   item.ID,
-		BrandID:            libmongo.ResolveBrandID(item.BrandID, item.LegacyPersonaID),
+		BrandID:              libmongo.ResolveBrandID(item.BrandID, item.LegacyPersonaID),
-		PersonaID:          strings.TrimSpace(item.LegacyPersonaID),
+		PersonaID:            strings.TrimSpace(item.LegacyPersonaID),
-		CopyMissionID:      item.CopyMissionID,
+		CopyMissionID:        item.CopyMissionID,
-		Flow:               item.Flow,
+		Flow:                 item.Flow,
-		GraphNodeID:        item.GraphNodeID,
+		GraphNodeID:          item.GraphNodeID,
-		SearchTag:          item.SearchTag,
+		SearchTag:            item.SearchTag,
-		QueryDimension:     item.QueryDimension,
+		QueryDimension:       item.QueryDimension,
-		ExternalID:         item.ExternalID,
+		ExternalID:           item.ExternalID,
-		Permalink:          item.Permalink,
+		Permalink:            item.Permalink,
-		Author:             item.Author,
+		Author:               item.Author,
-		AuthorVerified:     item.AuthorVerified,
+		AuthorID:             item.AuthorID,
-		FollowerCount:      item.FollowerCount,
+		AuthorAvatar:         item.AuthorAvatar,
-		Text:               item.Text,
+		AuthorVerified:       item.AuthorVerified,
-		Priority:           item.Priority,
+		FollowerCount:        item.FollowerCount,
-		LikeCount:          item.LikeCount,
+		AuthorFollowers:      item.AuthorFollowers,
-		ReplyCount:         item.ReplyCount,
+		Text:                 item.Text,
-		EngagementScore:    item.EngagementScore,
+		Priority:             item.Priority,
-		PlacementScore:     item.PlacementScore,
+		LikeCount:            item.LikeCount,
-		ProductFitScore:    item.ProductFitScore,
+		ReplyCount:           item.ReplyCount,
-		SolvedByProduct:    item.SolvedByProduct,
+		EngagementScore:      item.EngagementScore,
-		Source:             item.Source,
+		PlacementScore:       item.PlacementScore,
-		ScanJobID:          item.ScanJobID,
+		ProductFitScore:      item.ProductFitScore,
-		OutreachStatus:     item.OutreachStatus,
+		SolvedByProduct:      item.SolvedByProduct,
-		PublishedReplyID:   item.PublishedReplyID,
+		Source:               item.Source,
-		PublishedPermalink: item.PublishedPermalink,
+		ScanJobID:            item.ScanJobID,
-		OutreachUpdateAt:   item.OutreachUpdateAt,
+		OutreachStatus:       item.OutreachStatus,
-		PostedAt:           item.PostedAt,
+		PublishedReplyID:     item.PublishedReplyID,
-		Replies:            toReplySummaries(item.Replies),
+		PublishedPermalink:   item.PublishedPermalink,
-		CreateAt:           item.CreateAt,
+		OutreachUpdateAt:     item.OutreachUpdateAt,
+		PostedAt:             item.PostedAt,
+		Replies:              toReplySummaries(item.Replies),
+		Embedding:            item.Embedding,
+		SemanticScore:        item.SemanticScore,
+		EngagementPredicted:  item.EngagementPredicted,
+		AudienceQualityScore: item.AudienceQualityScore,
+		CreateAt:             item.CreateAt,
 	}
 }

backend/internal/model/threads_account/domain/repository/repository.go

@@ -19,4 +19,5 @@ type SecretsRepository interface {
 	EnsureIndexes(ctx context.Context) error
 	FindByAccountID(ctx context.Context, accountID string) (*entity.Secrets, error)
 	SaveBrowserStorageState(ctx context.Context, accountID, storageState string) (*entity.Secrets, error)
+	SaveAPIAccessToken(ctx context.Context, accountID, accessToken string, expiresAt int64) (*entity.Secrets, error)
 }

backend/internal/model/threads_account/domain/usecase/usecase.go

@@ -77,6 +77,13 @@ type ImportBrowserSessionResult struct {
 	UpdateAt  int64
 }
 
+type SecretsData struct {
+	AccountID         string
+	APIAccessToken    string
+	APITokenExpiresAt int64
+	UpdateAt          int64
+}
+
 type BrowserSessionData struct {
 	AccountID    string
 	StorageState string
@@ -147,4 +154,5 @@ type UseCase interface {
 	ResolveMemberAiCredential(ctx context.Context, tenantID, ownerUID string) (*WorkerAiCredential, error)
 	ResolveMemberPlacementContext(ctx context.Context, tenantID, ownerUID string, research placement.ResearchSettings) (placement.MemberContext, error)
 	ResolveMemberThreadsPublishCredential(ctx context.Context, tenantID, ownerUID string) (*ThreadsPublishCredential, error)
+	SaveAPIAccessToken(ctx context.Context, accountID, accessToken string, expiresAt int64) (*SecretsData, error)
 }

backend/internal/model/threads_account/repository/secrets_mongo.go

@@ -92,3 +92,30 @@ func (r *secretsMongoRepository) SaveBrowserStorageState(ctx context.Context, ac
 	out.BrowserStorageState = storageState
 	return &out, nil
 }
+
+func (r *secretsMongoRepository) SaveAPIAccessToken(ctx context.Context, accountID, accessToken string, expiresAt int64) (*entity.Secrets, error) {
+	if r.collection == nil {
+		return nil, app.For(code.ThreadsAccount).DBUnavailable("Mongo is not configured")
+	}
+	now := clock.NowUnixNano()
+	var out entity.Secrets
+	err := r.collection.FindOneAndUpdate(
+		ctx,
+		bson.M{"_id": accountID},
+		bson.M{
+			"$set": bson.M{
+				"api_access_token":     accessToken,
+				"api_token_expires_at": expiresAt,
+				"update_at":            now,
+			},
+			"$setOnInsert": bson.M{"_id": accountID},
+		},
+		options.FindOneAndUpdate().SetUpsert(true).SetReturnDocument(options.After),
+	).Decode(&out)
+	if err != nil {
+		return nil, err
+	}
+	out.APIAccessToken = accessToken
+	out.APITokenExpiresAt = expiresAt
+	return &out, nil
+}

backend/internal/model/threads_account/usecase/ai_credentials.go

@@ -105,7 +105,7 @@ func (u *threadsAccountUseCase) ResolveAiProviderAPIKey(
 	}
 	apiKey := strings.TrimSpace(stored.ApiKeys[provider])
 	if apiKey == "" {
-		return "", app.For(code.ThreadsAccount).InputMissingRequired("請先在設定頁設定 "+provider+" API key")
+		return "", app.For(code.ThreadsAccount).InputMissingRequired("請先在設定頁設定 " + provider + " API key")
 	}
 	return apiKey, nil
 }

backend/internal/model/threads_account/usecase/usecase.go

@@ -277,6 +277,27 @@ func (u *threadsAccountUseCase) toSummary(ctx context.Context, account *entity.A
 	}, nil
 }
 
+func (u *threadsAccountUseCase) SaveAPIAccessToken(ctx context.Context, accountID, accessToken string, expiresAt int64) (*domusecase.SecretsData, error) {
+	accountID = strings.TrimSpace(accountID)
+	if accountID == "" {
+		return nil, app.For(code.ThreadsAccount).InputMissingRequired("account_id is required")
+	}
+	accessToken = strings.TrimSpace(accessToken)
+	if accessToken == "" {
+		return nil, app.For(code.ThreadsAccount).InputMissingRequired("access_token is required")
+	}
+	result, err := u.secretsRepo.SaveAPIAccessToken(ctx, accountID, accessToken, expiresAt)
+	if err != nil {
+		return nil, err
+	}
+	return &domusecase.SecretsData{
+		AccountID:         result.AccountID,
+		APIAccessToken:    result.APIAccessToken,
+		APITokenExpiresAt: result.APITokenExpiresAt,
+		UpdateAt:          result.UpdateAt,
+	}, nil
+}
+
 func (u *threadsAccountUseCase) connectionFlags(ctx context.Context, accountID string) (bool, bool, error) {
 	secrets, err := u.secretsRepo.FindByAccountID(ctx, accountID)
 	if err != nil {

backend/internal/svc/service_context.go

@@ -30,6 +30,9 @@ import (
 	copymissiondomain "haixun-backend/internal/model/copy_mission/domain/usecase"
 	copymissionrepo "haixun-backend/internal/model/copy_mission/repository"
 	copymissionusecase "haixun-backend/internal/model/copy_mission/usecase"
+	crmcontactdomain "haixun-backend/internal/model/crm_contact/domain/usecase"
+	crmcontactrepo "haixun-backend/internal/model/crm_contact/repository"
+	crmcontactusecase "haixun-backend/internal/model/crm_contact/usecase"
 	jobrepo "haixun-backend/internal/model/job/repository"
 	jobusecase "haixun-backend/internal/model/job/usecase"
 	kgdomain "haixun-backend/internal/model/knowledge_graph/domain/usecase"
@@ -51,6 +54,9 @@ import (
 	placementtopicdomain "haixun-backend/internal/model/placement_topic/domain/usecase"
 	placementtopicrepo "haixun-backend/internal/model/placement_topic/repository"
 	placementtopicusecase "haixun-backend/internal/model/placement_topic/usecase"
+	publishanalyticsdomain "haixun-backend/internal/model/publish_analytics/domain/usecase"
+	publishanalyticsrepo "haixun-backend/internal/model/publish_analytics/repository"
+	publishanalyticsusecase "haixun-backend/internal/model/publish_analytics/usecase"
 	scanpostdomain "haixun-backend/internal/model/scan_post/domain/usecase"
 	scanpostrepo "haixun-backend/internal/model/scan_post/repository"
 	scanpostusecase "haixun-backend/internal/model/scan_post/usecase"
@@ -71,23 +77,25 @@ type ServiceContext struct {
 	Mongo     *libmongo.Client
 	Redis     *goredis.Client
 
-	Setting        settingusecase.UseCase
+	Setting          settingusecase.UseCase
-	AI             aisettings.UseCase
+	AI               aisettings.UseCase
-	Job            jobusecase.UseCase
+	Job              jobusecase.UseCase
-	AuthToken      authdomain.TokenUseCase
+	AuthToken        authdomain.TokenUseCase
-	Member         memberdomain.UseCase
+	Member           memberdomain.UseCase
-	Permission     permissiondomain.UseCase
+	Permission       permissiondomain.UseCase
-	Persona        personadomain.UseCase
+	Persona          personadomain.UseCase
-	CopyMission    copymissiondomain.UseCase
+	CopyMission      copymissiondomain.UseCase
-	Brand          branddomain.UseCase
+	Brand            branddomain.UseCase
-	PlacementTopic placementtopicdomain.UseCase
+	PlacementTopic   placementtopicdomain.UseCase
-	KnowledgeGraph kgdomain.UseCase
+	KnowledgeGraph   kgdomain.UseCase
-	Placement      placementusecase.UseCase
+	Placement        placementusecase.UseCase
-	ScanPost       scanpostdomain.UseCase
+	ScanPost         scanpostdomain.UseCase
-	OutreachDraft  outreachdraftdomain.UseCase
+	OutreachDraft    outreachdraftdomain.UseCase
-	ContentMatrix  cmatrixdomain.UseCase
+	ContentMatrix    cmatrixdomain.UseCase
-	CopyDraft      copydraftdomain.UseCase
+	CopyDraft        copydraftdomain.UseCase
-	ThreadsAccount threadsaccountdomain.UseCase
+	ThreadsAccount   threadsaccountdomain.UseCase
+	CrmContact       crmcontactdomain.UseCase
+	PublishAnalytics publishanalyticsdomain.UseCase
 
 	// Middlewares mounted per route group via generate/api `middleware:` directive.
 	AuthJWT      rest.Middleware
@@ -189,6 +197,12 @@ func NewServiceContext(c config.Config) *ServiceContext {
 	if err := jobUseCase.EnsureGenerateCopyDraftTemplate(ctx); err != nil {
 		panic(err)
 	}
+	if err := jobUseCase.EnsureRefreshThreadsTokenTemplate(ctx); err != nil {
+		panic(err)
+	}
+	if err := jobUseCase.EnsurePublishAnalyticsTemplate(ctx); err != nil {
+		panic(err)
+	}
 
 	copyMissionRepository := copymissionrepo.NewMongoRepository(mongoClient.Database())
 	if err := copyMissionRepository.EnsureIndexes(ctx); err != nil {
@@ -266,28 +280,42 @@ func NewServiceContext(c config.Config) *ServiceContext {
 
 	placementUseCase := placementusecase.NewUseCase(settingUseCase, secretsCipher)
 
+	crmContactRepository := crmcontactrepo.NewMongoRepository(mongoClient.Database())
+	if err := crmContactRepository.EnsureIndexes(ctx); err != nil {
+		panic(err)
+	}
+	crmContactUseCase := crmcontactusecase.NewUseCase(crmContactRepository)
+
+	publishAnalyticsRepository := publishanalyticsrepo.NewMongoRepository(mongoClient.Database())
+	if err := publishAnalyticsRepository.EnsureIndexes(ctx); err != nil {
+		panic(err)
+	}
+	publishAnalyticsUseCase := publishanalyticsusecase.NewUseCase(publishAnalyticsRepository)
+
 	sc := &ServiceContext{
-		Config:         c,
+		Config:           c,
-		Validator:      validate.New(),
+		Validator:        validate.New(),
-		Mongo:          mongoClient,
+		Mongo:            mongoClient,
-		Redis:          redisClient,
+		Redis:            redisClient,
-		Setting:        settingUseCase,
+		Setting:          settingUseCase,
-		AI:             aisettings.NewUseCase(),
+		AI:               aisettings.NewUseCase(),
-		Job:            jobUseCase,
+		Job:              jobUseCase,
-		AuthToken:      authTokenUseCase,
+		AuthToken:        authTokenUseCase,
-		Member:         memberUseCase,
+		Member:           memberUseCase,
-		Permission:     permissionUseCase,
+		Permission:       permissionUseCase,
-		Persona:        personaUseCase,
+		Persona:          personaUseCase,
-		CopyMission:    copyMissionUseCase,
+		CopyMission:      copyMissionUseCase,
-		Brand:          brandUseCase,
+		Brand:            brandUseCase,
-		PlacementTopic: placementTopicUseCase,
+		PlacementTopic:   placementTopicUseCase,
-		KnowledgeGraph: knowledgeGraphUseCase,
+		KnowledgeGraph:   knowledgeGraphUseCase,
-		Placement:      placementUseCase,
+		Placement:        placementUseCase,
-		ScanPost:       scanPostUseCase,
+		ScanPost:         scanPostUseCase,
-		OutreachDraft:  outreachDraftUseCase,
+		OutreachDraft:    outreachDraftUseCase,
-		ContentMatrix:  contentMatrixUseCase,
+		ContentMatrix:    contentMatrixUseCase,
-		CopyDraft:      copyDraftUseCase,
+		CopyDraft:        copyDraftUseCase,
-		ThreadsAccount: threadsAccountUseCase,
+		ThreadsAccount:   threadsAccountUseCase,
+		CrmContact:       crmContactUseCase,
+		PublishAnalytics: publishAnalyticsUseCase,
 	}
 
 	hostname, _ := os.Hostname()
@@ -357,6 +385,15 @@ func NewServiceContext(c config.Config) *ServiceContext {
 			ThreadsAccount: threadsAccountUseCase,
 			AI:             sc.AI,
 		})
+		jobworker.RegisterRefreshThreadsTokenHandler(runner, jobworker.RefreshThreadsTokenDeps{
+			Jobs:           jobUseCase,
+			ThreadsAccount: threadsAccountUseCase,
+		})
+		jobworker.RegisterPublishAnalyticsHandler(runner, jobworker.PublishAnalyticsDeps{
+			Jobs:             jobUseCase,
+			ThreadsAccount:   threadsAccountUseCase,
+			PublishAnalytics: publishAnalyticsUseCase,
+		})
 		go runner.Start(workerCtx)
 	}
 

backend/internal/types/types.go

@@ -1448,6 +1448,97 @@ type UpsertPlacementTopicScanScheduleHandlerReq struct {
 	UpsertBrandScanScheduleReq
 }
 
+type CrmContactData struct {
+	ID              string   `json:"id"`
+	BrandID         string   `json:"brand_id,omitempty"`
+	AuthorID        string   `json:"author_id"`
+	AuthorName      string   `json:"author_name"`
+	AuthorAvatar    string   `json:"author_avatar,omitempty"`
+	AuthorFollowers int      `json:"author_followers,omitempty"`
+	ScanPostID      string   `json:"scan_post_id,omitempty"`
+	Notes           string   `json:"notes,omitempty"`
+	Tags            []string `json:"tags,omitempty"`
+	Status          string   `json:"status"`
+	OutreachCount   int      `json:"outreach_count,omitempty"`
+	LastContactedAt int64    `json:"last_contacted_at,omitempty"`
+	CreateAt        int64    `json:"create_at"`
+	UpdateAt        int64    `json:"update_at"`
+}
+
+type CrmContactListData struct {
+	Pagination PaginationData   `json:"pagination"`
+	List       []CrmContactData `json:"list"`
+}
+
+type CrmContactIDPath struct {
+	ID string `path:"id" validate:"required"`
+}
+
+type ListCrmContactsReq struct {
+	BrandID  string `form:"brand_id,optional"`
+	Status   string `form:"status,optional"`
+	Tag      string `form:"tag,optional"`
+	Page     int    `form:"page,optional"`
+	PageSize int    `form:"pageSize,optional"`
+}
+
+type CreateCrmContactReq struct {
+	BrandID    string `json:"brand_id,omitempty"`
+	AuthorID   string `json:"author_id" validate:"required"`
+	AuthorName string `json:"author_name" validate:"required"`
+}
+
+type UpdateCrmContactReq struct {
+	CrmContactIDPath
+	Notes  *string   `json:"notes,optional"`
+	Tags   *[]string `json:"tags,optional"`
+	Status *string   `json:"status,optional"`
+}
+
+type PublishAnalyticsData struct {
+	ID              string `json:"id"`
+	MediaID         string `json:"media_id"`
+	Permalink       string `json:"permalink,omitempty"`
+	PublishedAt     int64  `json:"published_at"`
+	Checkpoint      string `json:"checkpoint"`
+	LikeCount       int    `json:"like_count,omitempty"`
+	ReplyCount      int    `json:"reply_count,omitempty"`
+	RepostCount     int    `json:"repost_count,omitempty"`
+	QuoteCount      int    `json:"quote_count,omitempty"`
+	ImpressionCount int    `json:"impression_count,omitempty"`
+	ReachCount      int    `json:"reach_count,omitempty"`
+	CheckedAt       int64  `json:"checked_at"`
+	CreateAt        int64  `json:"create_at"`
+}
+
+type PublishAnalyticsListData struct {
+	List []PublishAnalyticsData `json:"list"`
+}
+
+type LookalikeReq struct {
+	SourcePostID string `json:"source_post_id" validate:"required"`
+	BrandID      string `json:"brand_id,optional"`
+	Limit        int    `json:"limit,optional"`
+}
+
+type LookalikeItemData struct {
+	PostID              string  `json:"post_id"`
+	AuthorID            string  `json:"author_id"`
+	AuthorName          string  `json:"author_name"`
+	AuthorAvatar        string  `json:"author_avatar,omitempty"`
+	Permalink           string  `json:"permalink"`
+	Text                string  `json:"text"`
+	PlacementScore      int     `json:"placement_score"`
+	SemanticScore       int     `json:"semantic_score"`
+	EngagementPredicted int     `json:"engagement_predicted"`
+	AudienceQuality     int     `json:"audience_quality"`
+	Similarity          float64 `json:"similarity"`
+}
+
+type LookalikeData struct {
+	List []LookalikeItemData `json:"list"`
+}
+
 type ViralScanPostData struct {
 	ID              string          `json:"id"`
 	SearchTag       string          `json:"search_tag"`

backend/internal/worker/job/expand_graph.go

@@ -2,6 +2,7 @@ package job
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 	"strings"
 	"sync"
@@ -543,6 +544,25 @@ func mergeGraphs(existing *kgusecase.GraphSummary, incoming libkg.Graph, extraSo
 	return merged
 }
 
+func int64Field(payload map[string]any, key string) int64 {
+	if payload == nil {
+		return 0
+	}
+	switch v := payload[key].(type) {
+	case float64:
+		return int64(v)
+	case int64:
+		return v
+	case int:
+		return int64(v)
+	case json.Number:
+		n, _ := v.Int64()
+		return n
+	default:
+		return 0
+	}
+}
+
 func stringField(payload map[string]any, key string) string {
 	if payload == nil {
 		return ""

backend/internal/worker/job/publish_analytics.go

@@ -0,0 +1,81 @@
+package job
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	libthreads "haixun-backend/internal/library/threadsapi"
+	jobdom "haixun-backend/internal/model/job/domain/usecase"
+	publishanalyticsdomain "haixun-backend/internal/model/publish_analytics/domain/usecase"
+	threadsaccountdomain "haixun-backend/internal/model/threads_account/domain/usecase"
+)
+
+type PublishAnalyticsDeps struct {
+	Jobs             jobdom.UseCase
+	ThreadsAccount   threadsaccountdomain.UseCase
+	PublishAnalytics publishanalyticsdomain.UseCase
+}
+
+func RegisterPublishAnalyticsHandler(runner *Runner, deps PublishAnalyticsDeps) {
+	if runner == nil {
+		return
+	}
+	runner.RegisterStepHandler("check", func(ctx context.Context, step StepContext) error {
+		return runPublishAnalyticsCheck(ctx, step, deps)
+	})
+}
+
+func runPublishAnalyticsCheck(ctx context.Context, step StepContext, deps PublishAnalyticsDeps) error {
+	payload := step.Run.Payload
+	tenantID, ownerUID := runActorFromPayload(payload, step.Run)
+	mediaID := strings.TrimSpace(stringField(payload, "media_id"))
+	checkpoint := strings.TrimSpace(stringField(payload, "checkpoint"))
+	permalink := strings.TrimSpace(stringField(payload, "permalink"))
+	publishedAt := int64Field(payload, "published_at")
+	if mediaID == "" || checkpoint == "" {
+		return fmt.Errorf("publish-analytics payload missing media_id or checkpoint")
+	}
+
+	cred, err := deps.ThreadsAccount.ResolveMemberThreadsPublishCredential(ctx, tenantID, ownerUID)
+	if err != nil {
+		return fmt.Errorf("resolve publish credential: %w", err)
+	}
+	if cred == nil || cred.AccessToken == "" {
+		return fmt.Errorf("no access token found")
+	}
+
+	stats, err := libthreads.GetMediaStats(ctx, cred.AccessToken, mediaID)
+	if err != nil {
+		return fmt.Errorf("get media stats: %w", err)
+	}
+
+	saved, err := deps.PublishAnalytics.RecordCheckpoint(ctx, tenantID, ownerUID, publishanalyticsdomain.PublishAnalyticsSummary{
+		MediaID:     mediaID,
+		Permalink:   permalink,
+		PublishedAt: publishedAt,
+		Checkpoint:  checkpoint,
+		LikeCount:   stats.LikeCount,
+		ReplyCount:  stats.ReplyCount,
+		RepostCount: stats.RepostCount,
+		QuoteCount:  stats.QuoteCount,
+	})
+	if err != nil {
+		return fmt.Errorf("record checkpoint: %w", err)
+	}
+
+	_, err = deps.Jobs.CompleteRun(ctx, jobdom.CompleteRunRequest{
+		JobID:    step.JobID,
+		WorkerID: step.WorkerID,
+		Result: map[string]any{
+			"media_id":     mediaID,
+			"checkpoint":   checkpoint,
+			"like_count":   saved.LikeCount,
+			"reply_count":  saved.ReplyCount,
+			"repost_count": saved.RepostCount,
+			"quote_count":  saved.QuoteCount,
+			"analytics_id": saved.ID,
+		},
+	})
+	return err
+}

backend/internal/worker/job/refresh_threads_token.go

@@ -0,0 +1,63 @@
+package job
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	libthreads "haixun-backend/internal/library/threadsapi"
+	jobdom "haixun-backend/internal/model/job/domain/usecase"
+	threadsaccountdomain "haixun-backend/internal/model/threads_account/domain/usecase"
+)
+
+type RefreshThreadsTokenDeps struct {
+	Jobs           jobdom.UseCase
+	ThreadsAccount threadsaccountdomain.UseCase
+}
+
+func RegisterRefreshThreadsTokenHandler(runner *Runner, deps RefreshThreadsTokenDeps) {
+	if runner == nil {
+		return
+	}
+	runner.RegisterStepHandler("refresh", func(ctx context.Context, step StepContext) error {
+		return runRefreshThreadsToken(ctx, step, deps)
+	})
+}
+
+func runRefreshThreadsToken(ctx context.Context, step StepContext, deps RefreshThreadsTokenDeps) error {
+	payload := step.Run.Payload
+	tenantID, ownerUID := runActorFromPayload(payload, step.Run)
+	accountID := strings.TrimSpace(stringField(payload, "account_id"))
+	if tenantID == "" || ownerUID == "" || accountID == "" {
+		return fmt.Errorf("refresh-threads-token payload missing tenant_id, owner_uid, or account_id")
+	}
+
+	cred, err := deps.ThreadsAccount.ResolveMemberThreadsPublishCredential(ctx, tenantID, ownerUID)
+	if err != nil {
+		return fmt.Errorf("resolve publish credential: %w", err)
+	}
+	if cred == nil || cred.AccessToken == "" {
+		return fmt.Errorf("no access token found for account %s", accountID)
+	}
+
+	result, err := libthreads.RefreshAccessToken(ctx, cred.AccessToken)
+	if err != nil {
+		return fmt.Errorf("refresh token: %w", err)
+	}
+
+	expiresAt := libthreads.NsFromNow(result.ExpiresIn)
+	if _, err := deps.ThreadsAccount.SaveAPIAccessToken(ctx, accountID, result.AccessToken, expiresAt); err != nil {
+		return fmt.Errorf("save refreshed token: %w", err)
+	}
+
+	_, err = deps.Jobs.CompleteRun(ctx, jobdom.CompleteRunRequest{
+		JobID:    step.JobID,
+		WorkerID: step.WorkerID,
+		Result: map[string]any{
+			"account_id":  accountID,
+			"expires_at":  expiresAt,
+			"token_short": result.AccessToken[:min(len(result.AccessToken), 8)] + "...",
+		},
+	})
+	return err
+}