Improve AI daily report operations and dedupe observability

ai_daily_report/pipeline.py

@@ -30,6 +30,7 @@ def _source_config_from_dict(value: dict[str, Any]) -> SourceConfig:
         min_items=int(value.get("min_items", 0)),
         url=value.get("url", ""),
         max_item_age_days=int(max_item_age_days) if max_item_age_days is not None else None,
+        failure_policy=str(value.get("failure_policy") or ("block" if bool(value.get("required", False)) else "warn")),
     )
 
 
@@ -347,19 +348,26 @@ def run_stage0_to_stage8(
         quality_gate_config=quality_gate_config,
     )
     slug = f"ai-{run_date}"
+    effective_mode = mode
+    quality_gate_report = stage7_result["reports"].get("quality_gate", {}) or {}
+    required_policy = str(quality_gate_report.get("required_source_failure_policy") or "block")
+    if quality_gate_report.get("required_source_failures") and required_policy in {"draft", "dry_run"}:
+        effective_mode = "dry-run" if required_policy == "dry_run" else "draft"
+
     publish_result = publish_markdown(
         title=f"AI日报 · {run_date}",
         markdown=stage7_result["markdown"],
         tags=["AI日报", "AI资讯", "人工智能"],
         slug=slug,
         base_url=base_url,
-        mode=mode,
+        mode=effective_mode,
         markdown_report=stage7_result["reports"]["stage7"],
         client=client,
         idempotency_config=publish_idempotency_config,
     )
     reports = dict(stage7_result["reports"])
     reports["stage8"] = {
+        "requested_mode": mode,
         "mode": publish_result.mode,
         "status": publish_result.status,
         "slug": publish_result.slug,