feat: unify sharing UI, redesign lists header, fix team sharing, and add user autocomplete

frontend/src/lib/api.ts

@@ -589,9 +589,15 @@ export const api = {
     return ensureArray(res).map((s) => ({
       ...s,
       members: ensureArray(s.members),
+      shares: ensureArray(s.shares),
     }));
   },
 
+  async getSpaceShares(spaceId: string): Promise<SpaceShare[]> {
+    const res = await request<SpaceShare[]>(`/api/v1/spaces/${spaceId}/shares`);
+    return ensureArray(res);
+  },
+
   async createSpace(name: string, icon: string, description: string): Promise<Space> {
     return request<Space>('/api/v1/spaces', {
       method: 'POST',
@@ -606,8 +612,8 @@ export const api = {
     });
   },
 
-  async addSpaceMember(spaceId: string, target: { userId?: string; email?: string; teamId?: string; role?: string }): Promise<SpaceMember> {
-    return request<SpaceMember>(`/api/v1/spaces/${spaceId}/members`, {
+  async addSpaceMember(spaceId: string, target: { userId?: string; email?: string; teamId?: string; role?: string }): Promise<any> {
+    return request<any>(`/api/v1/spaces/${spaceId}/members`, {
       method: 'POST',
       body: JSON.stringify(target),
     });

frontend/src/lib/types.ts

@@ -162,7 +162,10 @@ export interface DocumentBlock {
 export interface DocShare {
   id: string;
   docId: string;
-  userId: string;
+  targetType?: 'user' | 'team';
+  targetId?: string;
+  targetName?: string;
+  userId?: string;
   userEmail?: string;
   displayName?: string;
   permission: 'read' | 'write';
@@ -238,6 +241,17 @@ export interface SpaceMember {
   joinedAt: string;
 }
 
+export interface SpaceShare {
+  id: string;
+  spaceId: string;
+  targetType: 'team' | 'user';
+  targetId: string;
+  targetName?: string;
+  role: 'editor' | 'viewer';
+  createdBy?: string;
+  createdAt: string;
+}
+
 export interface Space {
   id: string;
   name: string;
@@ -247,6 +261,7 @@ export interface Space {
   isPersonal: boolean;
   ownerId: string;
   members?: SpaceMember[];
+  shares?: SpaceShare[];
   listsCount: number;
   createdAt: string;
 }