EPIC: Research and synthesized publications

Programme: #1

Own deep research planning/retrieval, evidence/contradiction analysis and source-backed synthesized publications that become durable workspace artifacts rather than transient chat answers.

## Child issues
- [ ] #75 RES-01 — Deep retrieval and exact-link discovery
- [ ] #76 RES-02 — Claim extraction, contradiction and ranking
- [ ] #77 RES-03 — Living articles and research artifacts

## Cross-cutting gates
Canonical links and exact sources, source-independence checks, claim/evidence links, freshness and contradiction retention, attribution/caching rules, and explicit uncertainty/gaps.

Start by reading child issues #75, #76, and #77 to understand the retrieval, claim analysis, and research-artifact work. Then review the cross-cutting gates for canonical sources, evidence links, freshness, contradictions, attribution, caching, and uncertainty; done means the epic’s child work satisfies those gates.

Written by the indexing model from the issue text.