refactor: デッドコード削除

README.md

@@ -45,7 +45,6 @@ Cloud Scheduler/Tasks ──► HTTP /tasks/daily-summary
 | `YUKAN_SUMMARY_MAX_HIGHLIGHTS` |  | Gemini に要求する最大ハイライト数 (既定 3) |
 | `YUKAN_SUMMARY_MAX_ATTEMPTS` |  | Gemini 呼び出しリトライ回数 (既定 5) |
 | `YUKAN_SUMMARY_MAX_CONCURRENCY` |  | チャンネル収集の並列数 |
-| `YUKAN_FORCE_EMPTY_HIGHLIGHTS` |  | テスト・デバッグ用: `true` で Gemini を呼ばず空ハイライトを返す |
 
 ## デプロイ
 デプロイは GitHub Actions で行います。手元からの `make deploy` は廃止しました。

internal/summary/collector.go

@@ -23,7 +23,6 @@ type Collector struct {
 
 const (
 	fallbackNoMessages = "過去24時間のメッセージはありません"
-	fallbackGeneric    = "夕刊を生成できませんでした。しばらくしてから再実行してください。"
 )
 
 // Collect gathers messages from the target guild within the configured lookback window.
@@ -187,7 +186,7 @@ func fallbackMessage(total int) string {
 	if total <= 0 {
 		return fallbackNoMessages
 	}
-	return fallbackGeneric
+	return ""
 }
 
 func (c *Collector) collectChannel(ctx context.Context, guildID, botID string, cutoff time.Time, ch *discordgo.Channel, parentNames map[string]string, memberNames *nameCache) (*ChannelDigest, bool, error) {
@@ -225,14 +224,12 @@ func (c *Collector) collectChannel(ctx context.Context, guildID, botID string, c
 			}
 
 			digest := MessageDigest{
-				Author:         resolveAuthor(c.Session, guildID, msg, memberNames),
-				AvatarURL:      userAvatarURL(msg.Author),
-				Content:        extractContent(msg),
-				Timestamp:      timestamp,
-				MessageID:      msg.ID,
-				ChannelID:      ch.ID,
-				Link:           buildMessageLink(guildID, ch.ID, msg.ID),
-				AttachmentURLs: extractAttachmentURLs(msg),
+				Author:    resolveAuthor(c.Session, guildID, msg, memberNames),
+				AvatarURL: userAvatarURL(msg.Author),
+				Content:   extractContent(msg),
+				Timestamp: timestamp,
+				ChannelID: ch.ID,
+				Link:      buildMessageLink(guildID, ch.ID, msg.ID),
 			}
 
 			collected = append(collected, digest)

internal/summary/helpers.go

@@ -99,17 +99,6 @@ func displayNameFromUser(user *discordgo.User) string {
 	return username
 }
 
-func extractAttachmentURLs(msg *discordgo.Message) []string {
-	if msg == nil || len(msg.Attachments) == 0 {
-		return nil
-	}
-	urls := make([]string, 0, len(msg.Attachments))
-	for _, attachment := range msg.Attachments {
-		urls = append(urls, attachment.URL)
-	}
-	return urls
-}
-
 func userAvatarURL(user *discordgo.User) string {
 	if user == nil {
 		return ""

internal/summary/service.go

@@ -112,10 +112,6 @@ func (s *Service) Generate(ctx context.Context, req Request) (Result, error) {
 		return result, err
 	}
 
-	result.Digests = collectorResult.Digests
-	result.Fallback = collectorResult.FallbackText
-	result.TotalMessages = collectorResult.TotalMessages
-
 	s.info(ctx, fmt.Sprintf("メッセージ取得終了 (チャンネル=%d, メッセージ=%d, 所要%s)", len(collectorResult.Digests), collectorResult.TotalMessages, formatDuration(time.Since(workflowStart))))
 	if collectorResult.SkippedChannels > 0 {
 		s.info(ctx, fmt.Sprintf("取得できないチャンネルを%d件スキップしました", collectorResult.SkippedChannels))
@@ -196,7 +192,6 @@ func (s *Service) Generate(ctx context.Context, req Request) (Result, error) {
 	result.Embeds = embeds
 	result.Highlights = highlights
 	result.Publishable = len(embeds) > 0
-	result.CompletedAt = time.Now()
 
 	s.info(ctx, fmt.Sprintf("出力準備完了 (文字数=%d, 累計%s)", utf8.RuneCountInString(result.Content), formatDuration(time.Since(workflowStart))))
 

internal/summary/types.go

@@ -18,14 +18,12 @@ type Highlight struct {
 
 // MessageDigest represents a single Discord message used for summarization.
 type MessageDigest struct {
-	Author         string
-	AvatarURL      string
-	Content        string
-	Timestamp      time.Time
-	MessageID      string
-	ChannelID      string
-	Link           string
-	AttachmentURLs []string
+	Author    string
+	AvatarURL string
+	Content   string
+	Timestamp time.Time
+	ChannelID string
+	Link      string
 }
 
 // ChannelDigest aggregates messages per channel or thread.
@@ -56,11 +54,7 @@ type Result struct {
 	Content       string
 	Embeds        []*discordgo.MessageEmbed
 	Highlights    []Highlight
-	Digests       []ChannelDigest
-	Fallback      string
-	TotalMessages int
 	WorkflowStart time.Time
-	CompletedAt   time.Time
 	Publishable   bool
 	// Posted は Run で実際に Discord へ投稿されたかを示す
 	Posted bool