fix(api): 標示全零週報資料鏈異常

apps/api/tests/test_telegram_message_templates.py

@@ -18,6 +18,7 @@ from src.services.telegram_gateway import (
     SentryErrorMessage,
     TelegramGateway,
     TelegramMessage,
+    WeeklyReportMessage,
 )
 
 
@@ -53,6 +54,51 @@ def test_auto_repair_status_line_distinguishes_auto_resolved() -> None:
     assert "CPU 92%->30%" in result
 
 
+def test_weekly_report_marks_all_zero_as_low_trust_anomaly() -> None:
+    report = WeeklyReportMessage(
+        week_range="2026-W24",
+        report_date="2026-06-12 10:00",
+        stats_source_ok=False,
+        k3s_source_ok=True,
+        git_source_ok=False,
+        cost_source_ok=False,
+        all_zero_actionable_anomaly=True,
+    )
+
+    body = report.format()
+
+    assert "報表資料信任度" in body
+    assert "判定: <b>低可信</b>" in body
+    assert "Stats=fail" in body
+    assert "Git=fail" in body
+    assert "Cost=missing" in body
+    assert "全 0: <code>actionable_anomaly</code>" in body
+    assert "告警統計" in body
+
+
+def test_weekly_report_keeps_nonzero_source_status_visible() -> None:
+    report = WeeklyReportMessage(
+        week_range="2026-W24",
+        report_date="2026-06-12 10:00",
+        alert_total=3,
+        ai_proposal_count=2,
+        commits_count=5,
+        deploy_count=1,
+        ai_tokens_week=1200,
+        stats_source_ok=True,
+        k3s_source_ok=True,
+        git_source_ok=True,
+        cost_source_ok=True,
+    )
+
+    body = report.format()
+
+    assert "判定: <b>可參考</b>" in body
+    assert "全 0: <code>no</code>" in body
+    assert "Commits: <code>5</code>" in body
+    assert "Tokens: <code>1,200</code>" in body
+
+
 def test_telegram_html_chunks_preserve_complete_lines() -> None:
     """歷史/詳情長訊息不得用 text[:500] 切壞 HTML tag。"""
     lines = [