feat(regulatory): 增加法规核查基础服务

review_agent/regulatory_review/services/structure_check.py

@@ -0,0 +1,41 @@
+from __future__ import annotations
+
+from review_agent.regulatory_review.schemas import Finding
+
+
+def run_structure_check(document_texts: dict[str, str], rule_set: dict) -> list[Finding]:
+    findings: list[Finding] = []
+    for requirement in rule_set.get("requirements", []):
+        required_sections = requirement.get("required_sections") or []
+        if not required_sections:
+            continue
+        matching_docs = _matching_documents(document_texts, requirement.get("file_keywords", []))
+        if not matching_docs:
+            continue
+        combined_text = "\n".join(matching_docs.values())
+        for section in required_sections:
+            if section in combined_text:
+                continue
+            findings.append(
+                Finding(
+                    rule_code=f"{requirement['code']}:{section}",
+                    category="structure",
+                    severity=requirement.get("severity", "medium"),
+                    title=f"{requirement['title']}缺少{section}章节",
+                    detail=f"已匹配{requirement['title']}文件，但未发现{section}相关内容。",
+                    suggestion=requirement.get("suggestion", ""),
+                    evidence={"section": section, "files": list(matching_docs)},
+                )
+            )
+    return findings
+
+
+def _matching_documents(document_texts: dict[str, str], keywords: list[str]) -> dict[str, str]:
+    if not keywords:
+        return document_texts
+    result = {}
+    for name, text in document_texts.items():
+        haystack = f"{name}\n{text}".lower()
+        if any(str(keyword).lower() in haystack for keyword in keywords):
+            result[name] = text
+    return result