fix(data): 清理旧数据并保护服务端写入

apps/web/lib/requirement.ts

@@ -17,6 +17,80 @@ export interface SourceTarget {
   createdAt: string;
 }
 
+export function parseSourceTargetSelection(value?: string | null): string[] {
+  if (!value) return [];
+  return uniqueNonEmptyNames(value.split(/[、,，]/));
+}
+
+export function formatSourceTargetSelection(names: string[]): string {
+  return uniqueNonEmptyNames(names).join('、');
+}
+
+export function filterSourceTargetsByKeyword(
+  targets: SourceTarget[],
+  sourceType: SourceType,
+  keyword: string,
+): SourceTarget[] {
+  const query = keyword.trim().toLowerCase();
+  return targets.filter((target) => {
+    if (target.sourceType !== sourceType) return false;
+    if (!query) return true;
+    return target.name.toLowerCase().includes(query);
+  });
+}
+
+export interface RequirementProjectOption {
+  id: string;
+  name: string;
+  productId: string;
+}
+
+export interface RequirementVersionOption {
+  id: string;
+  name: string;
+  projectId: string;
+}
+
+export function filterRequirementProjectOptions(
+  projects: RequirementProjectOption[],
+  productId: string,
+  keyword: string,
+): RequirementProjectOption[] {
+  if (!productId) return [];
+  const query = keyword.trim().toLowerCase();
+  return projects.filter((project) => {
+    if (project.productId !== productId) return false;
+    if (!query) return true;
+    return project.name.toLowerCase().includes(query);
+  });
+}
+
+export function filterRequirementVersionOptions(
+  versions: RequirementVersionOption[],
+  projectId: string,
+  keyword: string,
+): RequirementVersionOption[] {
+  if (!projectId) return [];
+  const query = keyword.trim().toLowerCase();
+  return versions.filter((version) => {
+    if (version.projectId !== projectId) return false;
+    if (!query) return true;
+    return version.name.toLowerCase().includes(query);
+  });
+}
+
+function uniqueNonEmptyNames(names: string[]): string[] {
+  const seen = new Set<string>();
+  const out: string[] = [];
+  for (const name of names) {
+    const trimmed = name.trim();
+    if (!trimmed || seen.has(trimmed)) continue;
+    seen.add(trimmed);
+    out.push(trimmed);
+  }
+  return out;
+}
+
 export interface Requirement {
   id: string;
   code: string;