fix(paper): 论文产物渲染为 HTML + 文末追加参考文献列表/disclaimer

sdk/app/services/paper/agent.py

@@ -249,17 +249,36 @@ async def run_writing_loop(db, paper_id: str, session_id: str) -> None:
         await _write_message(db, session_id, blocks=[_text_block(f"撰写失败：{exc}")], text="撰写失败")
 
 
+def _build_full_markdown(paper: dict[str, Any]) -> str:
+    """把 full_markdown + 文末参考文献列表 + disclaimer 拼成完整 markdown（供渲染 HTML 与落盘）。"""
+    md = paper.get("full_markdown", "")
+    refs = paper.get("references") or []
+    if refs:
+        md += "\n\n## 参考文献\n\n" + "\n".join(
+            f"[{r.get('n', '')}] {r.get('text', '')}".strip() for r in refs
+        )
+    disclaimer = (paper.get("disclaimer") or "").strip()
+    if disclaimer:
+        md += f"\n\n> {disclaimer}"
+    return md
+
+
 async def _artifact_message(db, session_id: str, paper: dict[str, Any], nl: str) -> list[dict[str, Any]]:
     from ...routers.docgen import insert_artifact  # 惰性导入
+    from ..docgen import templating  # 惰性导入：复用 docgen markdown→HTML 渲染链
 
     refs = paper.get("references") or []
+    title = paper.get("title", "")
+    full_md = _build_full_markdown(paper)
+    html, css = templating.render_html(full_md, title=title, key="document")
     artifact_id = await insert_artifact(
-        db, session_id=session_id, title=paper.get("title", ""),
-        markdown=paper.get("full_markdown", ""), template_name="论文",
+        db, session_id=session_id, title=title,
+        markdown=full_md, template_name="论文", template_key="document",
+        template_css=css, html=html,
     )
     blocks = [
         _text_block(nl),
-        {"type": "artifact", "artifact_id": artifact_id, "title": paper.get("title", ""),
+        {"type": "artifact", "artifact_id": artifact_id, "title": title,
          "template_name": "论文", "status": "done", "paper_id": paper.get("paper_id", ""),
          "citation_count": len(refs)},
     ]