feat: connect source management workspace

frontend/src/api.ts

@@ -2,3 +2,10 @@ export async function getHealth(){const r=await fetch('/api/health');if(!r.ok)th
 export async function askQuestion(question:string){const r=await fetch('/api/chat',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({question})});if(!r.ok)throw new Error('chat failed');return r.json() as Promise<{answer:string;status:string;sources:{title:string;source_url?:string|null}[]}>}
 export async function getKnowledge(){const r=await fetch('/api/knowledge');if(!r.ok)throw new Error('knowledge failed');return r.json() as Promise<any[]>}
 export async function createKnowledge(payload:{title:string;category:string;content:string;source_url?:string}){const r=await fetch('/api/knowledge',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)});if(!r.ok)throw new Error('保存失败，请检查网址格式及后端状态');return r.json()}
+
+export type VerificationStatus='pending'|'verified'|'rejected'
+export type SourceItem={id:number;version:number;name:string;source_url:string|null;notes:string;created_at:string}
+async function catalogRequest<T>(path:string,init?:RequestInit):Promise<T>{const r=await fetch(path,init);if(!r.ok){const detail=await r.json().catch(()=>null);throw new Error(detail?.detail||'请求失败，请检查后端服务和填写内容。')}return r.json() as Promise<T>}
+export function getSources(q=''){return catalogRequest<{items:SourceItem[];total:number}>(`/api/sources?q=${encodeURIComponent(q)}`)}
+export function createSource(payload:{name:string;source_url?:string;notes:string}){return catalogRequest<SourceItem>('/api/sources',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)})}
+export function reviewKnowledge(id:number,payload:{expected_version:number;verification_status:VerificationStatus;reviewer:string;verification_notes:string}){return catalogRequest(`/api/knowledge/${id}/review`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)})}