feat: organize news packages into verified event timelines

Add optional events, evidence-backed timelines, versioned package corrections and bounded historical reprocessing. Keep independent packages readable and isolate retries by failed stage. Configure reasoning effort per model stage and refresh default news Skill drafts without publishing.

backend/tests/test_news_risk.py

@@ -56,7 +56,7 @@ def mock_enable(risk, monkeypatch, valid=True, verification='reported', directio
     monkeypatch.setattr(pipeline, 'configuration', AsyncMock(return_value=(provider, 'rules', {}, 'fingerprint')))
     async def complete(provider, system, payload, schema):
         if schema is pipeline.Grouping:
-            return pipeline.Grouping( reason='财经维护通知', events=[pipeline.Match(event_id=None,
+            return pipeline.Grouping( reason='财经维护通知', packages=[pipeline.Match(package_id=None,
                 group_key='maintenance', title='维护', category='company', entities=['示例公司'], fact='维护',
                 evidence=payload['article']['summary'] if valid else '捏造损失', urgent=False, tags=['维护'], content_kind='statement')]), {}
         if schema is risk.Outlook:
@@ -64,7 +64,7 @@ def mock_enable(risk, monkeypatch, valid=True, verification='reported', directio
                 counter_factors='不足', uncertainty='不足', event_ids=[]) for h in (24, 48, 168)]), {}
         article = payload['articles'][0]
         result = pipeline.EventResult(**{**label(risk).model_dump(exclude={'event_id', 'same_event_as', 'evidence', 'stars'}), 'verification': verification,
-            'direction': direction}, facts='维护', timeline='维护',
+            'direction': direction}, timeline_points=[dict(occurred_at=None, time_precision='unknown', time_text='Unknown', reported_at=None, description='Synthetic', verification='insufficient', evidence_refs=[{'article_id':1,'quote':article['summary']}])], facts='维护', timeline='维护',
             asset_impacts='未知', risk_stars=0, importance_stars=3, opinions='待观察', counter_evidence='不足', watchpoints='恢复', claims=[pipeline.Claim(statement='维护', verdict='insufficient', evidence_refs=[])], related_packages=[], excluded_article_ids=[],
             evidence_refs=[pipeline.Evidence(article_id=1, quote=article['summary'])])
         return result, {}
@@ -207,10 +207,10 @@ def test_long_sources_are_split_without_losing_text(risk, monkeypatch):
     article = {'id': 1, 'title': '安全事件', 'summary': '', 'content': '安'*16000}
     seen = []
     async def complete(provider, system, payload, schema):
-        if schema is pipeline.Extraction:
+        if payload['task'] == 'extract':
             seen.append(payload['content'])
-            return pipeline.Extraction(facts='事实', evidence_refs=[pipeline.Evidence(article_id=1, quote=payload['content'][:1])]), {}
-        return pipeline.EventResult(**label(risk).model_dump(exclude={'event_id', 'same_event_as', 'evidence', 'stars'}), facts='事实', timeline='时间', asset_impacts='资产',
+            return schema(facts='事实', evidence_refs=[pipeline.Evidence(article_id=1, quote=payload['content'][:1])]), {}
+        return pipeline.EventResult(**label(risk).model_dump(exclude={'event_id', 'same_event_as', 'evidence', 'stars'}), timeline_points=[dict(occurred_at=None, time_precision='unknown', time_text='Unknown', reported_at=None, description='Synthetic', verification='insufficient', evidence_refs=[{'article_id':1,'quote':'安全事件'}])], facts='事实', timeline='时间', asset_impacts='资产',
             risk_stars=5, importance_stars=5, opinions='待观察', counter_evidence='不足', watchpoints='恢复', claims=[pipeline.Claim(statement='事件', verdict='insufficient', evidence_refs=[])], related_packages=[], excluded_article_ids=[], evidence_refs=[pipeline.Evidence(article_id=1, quote='安全事件')]), {}
     monkeypatch.setattr(pipeline, 'complete', complete)
     result, _ = asyncio.run(pipeline.summarize_articles(provider, 'rules', [article], {'id': 1, 'fact': 'Synthetic event'}))
@@ -297,7 +297,7 @@ def test_completed_version_recovers_a_previously_stuck_pending_package(risk, mon
     from types import SimpleNamespace
     from unittest.mock import AsyncMock
     from alphapulse.news_risk import worker
-    event = SimpleNamespace(id=1, revision=3, published_revision=3, state='pending', error='Old failure',
+    event = SimpleNamespace(review_config=None, result=None, id=1, revision=3, published_revision=3, state='pending', error='Old failure',
         dirty_since=datetime.now(UTC), title='Statement', fact='Statement', category='politics', tags=['Statement'], content_kind='statement')
     session = AsyncMock()
     session.__aenter__.return_value = session