fix(data): 清理旧数据并保护服务端写入

apps/web/lib/requirement-scope.ts

@@ -58,6 +58,29 @@ export function buildRequirementScopeTree(
   });
 }
 
+export function filterRequirementScopeTreeByKeyword(
+  tree: RequirementProductScopeNode[],
+  keyword: string,
+): RequirementProductScopeNode[] {
+  const query = normalizeScopeKeyword(keyword);
+  if (!query) return tree;
+
+  const filtered: RequirementProductScopeNode[] = [];
+  for (const product of tree) {
+    if (normalizeScopeKeyword(product.name).includes(query)) {
+      filtered.push(product);
+      continue;
+    }
+
+    const projects = product.projects.filter((project) => normalizeScopeKeyword(project.name).includes(query));
+    if (projects.length > 0) {
+      filtered.push({ ...product, projects });
+    }
+  }
+
+  return filtered;
+}
+
 function countRequirements(requirements: Requirement[]): RequirementScopeCount {
   const byStatus: Partial<Record<RequirementStatus, number>> = {};
   for (const requirement of requirements) {
@@ -68,3 +91,7 @@ function countRequirements(requirements: Requirement[]): RequirementScopeCount {
     byStatus,
   };
 }
+
+function normalizeScopeKeyword(value: string): string {
+  return value.trim().toLowerCase();
+}