Document bilingual news research and temporal knowledge lifecycle

[AnastasiyaW]

Summary

• add the public English bilingual news-research and temporal-knowledge contract
• document evidence grades, EN/zh-CN search lanes, community-evidence gates, practical parameter context, and retained superseded knowledge
• add a reusable Agent Brief for goal-centred retrieval
• document the conservative first Telegram corpus aggregate without exposing raw data
• link the lifecycle from the news graph, Knowledge Space project page, architecture index, and generated llms directories

Proof

• freshness: 840 articles, 26 domains, 0 issues
• link check: 870 files, all links OK
• mkdocs build --strict: PASS
• public leak check: PASS
• independent read-only verifier: PASS

Boundary

The page explicitly marks schema-2, the scheduler, research ledger, and anonymous happyin-context endpoint as target architecture, not running services.