登録番組の定期確認を追加（24 時間ごと、予告の除外、確認エラーの記録）

internal/web/newer.go

@@ -14,8 +14,7 @@ import (
 )
 
 const (
-	previewMaxSeconds = 180
-	newerCacheTTL     = 10 * time.Minute
+	newerCacheTTL = 10 * time.Minute
 )
 
 var platformTokenPattern = regexp.MustCompile(`(?i)(platform_token=)[^&\s]+`)
@@ -137,7 +136,7 @@ func (s *server) newerView(ctx context.Context, options newerOptions) newerView
 	}
 	visible := make([]tver.Episode, 0, len(episodes))
 	for _, episode := range episodes {
-		if options.hidePreviews && episode.Duration <= previewMaxSeconds {
+		if options.hidePreviews && episode.Duration <= tver.PreviewMaxSeconds {
 			continue
 		}
 		visible = append(visible, episode)

internal/web/subscriptions.go

@@ -15,6 +15,7 @@ type subscriptionActionView struct {
 
 type subscriptionView struct {
 	ID, Title, CreatedAtText, LastCheckedText string
+	CheckErrorAtText, CheckErrorText          string
 	Enabled                                   bool
 	Jobs                                      int64
 }
@@ -136,6 +137,10 @@ func (s *server) loadSubscriptions(ctx context.Context) (subscriptionsView, erro
 		if sub.LastCheckedAt != nil {
 			item.LastCheckedText = sub.LastCheckedAt.In(s.zone).Format("2006-01-02 15:04 MST")
 		}
+		if sub.LastCheckErrorAt != nil && sub.LastCheckError != nil {
+			item.CheckErrorAtText = sub.LastCheckErrorAt.In(s.zone).Format("2006-01-02 15:04 MST")
+			item.CheckErrorText = *sub.LastCheckError
+		}
 		view.Items = append(view.Items, item)
 	}
 	return view, nil

internal/web/subscriptions_test.go

@@ -159,9 +159,12 @@ func TestSubscriptionMutationsWithoutHtmxRedirect(t *testing.T) {
 
 func TestSubscriptionsPagePauseResumeDeleteAndEscaping(t *testing.T) {
 	checked := time.Date(2026, 10, 4, 2, 30, 0, 0, time.UTC)
+	failedAt := time.Date(2026, 10, 4, 3, 45, 0, 0, time.UTC)
+	checkError := `<script>alert("error")</script> token=[REDACTED]`
 	jobs := &fakeJobStore{subscriptions: map[string]store.Subscription{
 		"sr1": {SeriesID: "sr1", SeriesTitle: `<script>alert(1)</script>`, Enabled: true,
-			CreatedAt: time.Date(2026, 10, 3, 0, 0, 0, 0, time.UTC), LastCheckedAt: &checked, JobCount: 3},
+			CreatedAt: time.Date(2026, 10, 3, 0, 0, 0, 0, time.UTC), LastCheckedAt: &checked,
+			LastCheckErrorAt: &failedAt, LastCheckError: &checkError, JobCount: 3},
 		"sr2": {SeriesID: "sr2", SeriesTitle: "別番組", Enabled: false, JobCount: 0},
 	}}
 	handler := newTestHandlerWithStore(&fakeFetcher{}, jobs, nil)
@@ -170,13 +173,13 @@ func TestSubscriptionsPagePauseResumeDeleteAndEscaping(t *testing.T) {
 		t.Fatalf("登録番組ページ: %d", page.Code)
 	}
 	body := page.Body.String()
-	for _, want := range []string{"&lt;script&gt;", "登録日時: 2026-10-03 09:00 JST", "最終確認: 2026-10-04 11:30 JST", "最終確認: 未確認", "関連ジョブ: 3件", "有効", "一時停止", `hx-confirm="番組の登録を解除しますか？"`} {
+	for _, want := range []string{"&lt;script&gt;", "登録日時: 2026-10-03 09:00 JST", "最終確認: 2026-10-04 11:30 JST", "最終確認: 未確認", "最後の確認エラー（2026-10-04 12:45 JST）", `&lt;script&gt;alert(&#34;error&#34;)&lt;/script&gt; token=[REDACTED]`, "関連ジョブ: 3件", "有効", "一時停止", `hx-confirm="番組の登録を解除しますか？"`} {
 		if !strings.Contains(body, want) {
 			t.Errorf("登録番組の情報 %q がない", want)
 		}
 	}
-	if strings.Contains(body, `<script>alert(1)</script>`) {
-		t.Fatal("番組名がエスケープされていない")
+	if strings.Contains(body, `<script>`) {
+		t.Fatal("番組名または確認エラーがエスケープされていない")
 	}
 	paused := postForm(handler, "/subscriptions/sr1/pause", nil)
 	if paused.Code != http.StatusOK || jobs.subscriptions["sr1"].Enabled || !strings.Contains(paused.Body.String(), `action="/subscriptions/sr1/resume"`) || strings.Contains(paused.Body.String(), "<html") {

internal/web/templates/subscriptions.html

@@ -27,6 +27,9 @@
     <article class="subscription-item">
       <h2>{{.Title}}</h2>
       <p>登録日時: {{.CreatedAtText}}／最終確認: {{.LastCheckedText}}／状態: {{if .Enabled}}有効{{else}}一時停止{{end}}／関連ジョブ: {{.Jobs}}件</p>
+      {{if .CheckErrorText}}
+        <details class="error"><summary>最後の確認エラー（{{.CheckErrorAtText}}）</summary><p>{{.CheckErrorText}}</p></details>
+      {{end}}
       {{if .Enabled}}
         <form action="/subscriptions/{{.ID}}/pause" method="post" hx-post="/subscriptions/{{.ID}}/pause" hx-target="#subscriptions-list" hx-swap="outerHTML"><button type="submit">一時停止</button></form>
       {{else}}