fix(web): 第9轮审查批次3——通讯录域一批问题

- 手机号搜索加好友时来源永远上报"search"（账号搜索），NewFriendsView
  早就有phone的文案映射但一直用不到——现在按searchType正确区分
- 添加好友弹层三个快捷按钮布局改成横向（原来是纵向堆叠，和设计稿方向
  不一致），图标颜色改成强调色
- "已选择"状态标签的圆角从胶囊改成6px小圆角，和同弹层其它按钮风格一致
- 通讯录头部"加好友"按钮补上移动端尺寸（40px/桌面36px），之前和旁边
  FIXED_ENTRIES的断点处理不一致
- 我的二维码/名片二维码生成失败没有重试入口，只能关掉弹层重开——补上
  重试按钮，同时处理"铸造失败"和"canvas绘制失败"两种情况
- 通讯录域几乎所有列表（好友列表/新朋友/群聊列表/黑名单/好友主页/加
  好友搜索）都把请求失败误判成"没有数据"，统一补上isError态+重试按
  钮；好友主页额外区分403(资料保护)/404(真的不存在)/其它错误三种情况，
  之前网络错误也会显示"未找到该用户"

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/src/features/contacts/AddFriendModal.tsx

@@ -47,7 +47,7 @@ export function AddFriendModal({ onClose, onSent, initialTarget }: AddFriendModa
   // Tracks HOW `selected` was populated so the eventual sendFriendRequest can report the real
   // provenance instead of always claiming "search" -- NewFriendsView's own SOURCE_LABEL map has a
   // dedicated "扫码添加" entry for the qr case that was otherwise dead/unreachable.
-  const [selectedSource, setSelectedSource] = useState<'search' | 'qr'>('search');
+  const [selectedSource, setSelectedSource] = useState<'search' | 'phone' | 'qr'>('search');
   const [message, setMessage] = useState('');
   const [error, setError] = useState('');
   const [sent, setSent] = useState(false);
@@ -194,9 +194,9 @@ export function AddFriendModal({ onClose, onSent, initialTarget }: AddFriendModa
                       key={action.label}
                       type="button"
                       onClick={action.onClick}
-                      className="flex flex-col items-center gap-1.5 rounded-lg bg-surface-input py-3 text-xs text-text-secondary"
+                      className="flex items-center justify-center gap-2 rounded-lg bg-surface-input py-3 text-xs text-text-secondary"
                     >
-                      <Icon name={action.icon} className="text-xl text-text-tertiary-1" />
+                      <Icon name={action.icon} className="text-xl text-accent" />
                       {action.label}
                     </button>
                   ))}
@@ -208,6 +208,13 @@ export function AddFriendModal({ onClose, onSent, initialTarget }: AddFriendModa
               <div className="mt-4 flex flex-col gap-2">
                 {searchQuery.isLoading ? (
                   <div className="py-6 text-center text-sm text-text-tertiary-4">搜索中…</div>
+                ) : searchQuery.isError ? (
+                  <div className="flex flex-col items-center gap-2 py-6 text-sm text-danger-text">
+                    <span>搜索失败，请重试</span>
+                    <button type="button" onClick={() => searchQuery.refetch()} className="text-accent">
+                      重试
+                    </button>
+                  </div>
                 ) : !searchQuery.data?.items.length ? (
                   <div className="py-6 text-center text-sm text-text-tertiary-4">未找到相关用户</div>
                 ) : (
@@ -220,7 +227,12 @@ export function AddFriendModal({ onClose, onSent, initialTarget }: AddFriendModa
                         type="button"
                         disabled={!selectable}
                         onClick={() => {
-                          setSelectedSource('search');
+                          // `searchType` (already computed above from the query itself) is the real
+                          // signal for which channel actually found this person -- NewFriendsView's
+                          // own SOURCE_LABEL table already has a `phone` entry ("通过手机号搜索")
+                          // that this path never reached because every search result was tagged
+                          // 'search' regardless of how it was found.
+                          setSelectedSource(searchType === 'phone' ? 'phone' : 'search');
                           setSelected(item);
                         }}
                         className="flex items-center gap-3 rounded-lg px-2 py-2 text-left disabled:opacity-70"
@@ -231,7 +243,7 @@ export function AddFriendModal({ onClose, onSent, initialTarget }: AddFriendModa
                           {item.public_account ? <span className="truncate text-xs text-text-tertiary-2">ID: {item.public_account}</span> : null}
                         </span>
                         {selectable ? (
-                          <span className={`flex-none rounded-full px-2.5 py-1 text-xs ${isSelected ? 'bg-accent-soft-bg text-accent' : 'bg-surface-input text-text-tertiary-2'}`}>
+                          <span className={`flex-none rounded-md px-2.5 py-1 text-xs ${isSelected ? 'bg-accent-soft-bg text-accent' : 'bg-surface-input text-text-tertiary-2'}`}>
                             {isSelected ? '已选择' : '选择'}
                           </span>
                         ) : (

web/src/features/contacts/BlocklistView.tsx

@@ -103,6 +103,13 @@ export function BlocklistView() {
       <div className="flex flex-col gap-2.5 p-6">
         {query.isLoading ? (
           <div className="py-10 text-center text-sm text-text-tertiary-4">加载中…</div>
+        ) : query.isError ? (
+          <div className="flex flex-col items-center gap-2 py-10 text-sm text-danger-text">
+            <span>加载失败，请重试</span>
+            <button type="button" onClick={() => query.refetch()} className="text-accent">
+              重试
+            </button>
+          </div>
         ) : items.length === 0 ? (
           <div className="py-10 text-center text-sm text-text-tertiary-4">黑名单是空的</div>
         ) : (

web/src/features/contacts/ContactsListColumn.tsx

@@ -65,7 +65,7 @@ export function ContactsListColumn() {
     <aside className="flex h-full w-full flex-none flex-col border-r border-border-panel bg-white md:w-[300px] lg:w-80">
       <header className="flex h-15 flex-none items-center justify-between px-5">
         <h1 className="m-0 text-xl font-semibold text-text-heading">通讯录</h1>
-        <button type="button" onClick={() => setAddingFriend(true)} className="grid h-8 w-8 place-items-center text-text-heading">
+        <button type="button" onClick={() => setAddingFriend(true)} className="grid h-10 w-10 place-items-center text-text-heading md:h-9 md:w-9">
           <Icon name="person_add_alt" />
         </button>
       </header>
@@ -119,6 +119,13 @@ export function ContactsListColumn() {
           )}
           {friendsQuery.isLoading ? (
             <div className="flex flex-1 items-center justify-center text-sm text-text-tertiary-4">加载中…</div>
+          ) : friendsQuery.isError ? (
+            <div className="flex flex-1 flex-col items-center justify-center gap-2 text-sm text-danger-text">
+              <span>加载失败，请重试</span>
+              <button type="button" onClick={() => friendsQuery.refetch()} className="text-accent">
+                重试
+              </button>
+            </div>
           ) : filtered.length === 0 ? (
             <div className="flex flex-1 flex-col items-center justify-center gap-2 py-10 text-text-tertiary-4">
               <Icon name={trimmedQuery ? 'search_off' : 'people_outline'} className="!text-4xl" />

web/src/features/contacts/FriendProfileView.tsx

@@ -70,12 +70,28 @@ export function FriendProfileView() {
     // Confirmed live 2026-09-09: a 403 here comes back with reason PERMISSION_DENIED and message
     // "profile is private" -- a real privacy setting on the other side, not a missing/deleted
     // account. Collapsing it into "未找到该用户" would misrepresent an intentional privacy choice
-    // as if the user doesn't exist; every other failure (404, network error) keeps that fallback.
+    // as if the user doesn't exist.
     const isPrivate = query.error instanceof ImApiError && query.error.status === 403;
+    // A genuine 404 is the only case that should actually read as "this user doesn't exist" --
+    // every OTHER failure (network error, 5xx, a transient timeout) used to fall into that same
+    // "未找到该用户" bucket too, telling the user an account is gone/never existed when the real
+    // problem is just that this one request failed and could succeed on retry.
+    const isNotFound = query.error instanceof ImApiError && query.error.status === 404;
     return (
-      <div className="relative flex h-full w-full items-center justify-center bg-surface-content text-sm text-text-tertiary-4">
+      <div className="relative flex h-full w-full flex-col items-center justify-center gap-2 bg-surface-content text-sm text-text-tertiary-4">
         {backLink}
-        {isPrivate ? '对方设置了资料保护，暂时无法查看' : '未找到该用户'}
+        {isPrivate ? (
+          '对方设置了资料保护，暂时无法查看'
+        ) : isNotFound ? (
+          '未找到该用户'
+        ) : (
+          <>
+            <span>加载失败，请重试</span>
+            <button type="button" onClick={() => query.refetch()} className="text-accent">
+              重试
+            </button>
+          </>
+        )}
       </div>
     );
   }

web/src/features/contacts/GroupListView.tsx

@@ -66,6 +66,13 @@ export function GroupListView() {
       <div className="flex flex-col gap-2.5 p-6">
         {query.isLoading ? (
           <div className="py-10 text-center text-sm text-text-tertiary-4">加载中…</div>
+        ) : query.isError ? (
+          <div className="flex flex-col items-center gap-2 py-10 text-sm text-danger-text">
+            <span>加载失败，请重试</span>
+            <button type="button" onClick={() => query.refetch()} className="text-accent">
+              重试
+            </button>
+          </div>
         ) : filtered.length === 0 ? (
           <div className="py-10 text-center text-sm text-text-tertiary-4">暂无群聊</div>
         ) : (

web/src/features/contacts/NewFriendsView.tsx

@@ -69,6 +69,13 @@ export function NewFriendsView() {
       <div className="flex flex-col gap-3 p-6">
         {query.isLoading ? (
           <div className="py-10 text-center text-sm text-text-tertiary-4">加载中…</div>
+        ) : query.isError ? (
+          <div className="flex flex-col items-center gap-2 py-10 text-sm text-danger-text">
+            <span>加载失败，请重试</span>
+            <button type="button" onClick={() => query.refetch()} className="text-accent">
+              重试
+            </button>
+          </div>
         ) : items.length === 0 ? (
           <div className="py-10 text-center text-sm text-text-tertiary-4">暂无新朋友申请</div>
         ) : (

web/src/features/contacts/QRCodeModal.tsx

@@ -35,15 +35,23 @@ export function QRCodeModal({ identifier, groupTopic, onClose }: QRCodeModalProp
     queryFn: (): Promise<MyQRCode | GroupQRCode> => (groupTopic ? createGroupQRCode(groupTopic) : identifier ? createUserQRCode(identifier) : createMyQRCode()),
   });
 
-  useEffect(() => {
+  const draw = () => {
     if (!query.data || !canvasRef.current) return;
     const canvas = canvasRef.current;
+    setDrawError('');
     // Dynamically imported (like agora-rtc-sdk-ng in agora-client.ts) so a QR-generating library
     // isn't in every visitor's main bundle when most sessions never open this modal.
     import('qrcode')
       .then(({ default: QRCode }) => QRCode.toCanvas(canvas, query.data.qr_payload, { width: 200, margin: 1, color: { dark: '#22262d', light: '#ffffff' } }))
       .catch(() => setDrawError('二维码生成失败'));
-  }, [query.data]);
+  };
+
+  useEffect(draw, [query.data]);
+
+  const retry = () => {
+    if (query.isError) query.refetch();
+    else draw();
+  };
 
   const profile = query.data && 'display_profile' in query.data ? query.data.display_profile : undefined;
   const group = query.data && 'group_snapshot' in query.data ? query.data.group_snapshot : undefined;
@@ -117,6 +125,9 @@ export function QRCodeModal({ identifier, groupTopic, onClose }: QRCodeModalProp
               <div className="flex flex-col items-center gap-2 px-4 text-center">
                 <Icon name="error_outline" className="text-2xl text-danger-text" />
                 <span className="text-xs text-text-tertiary-4">{drawError || '二维码生成失败，请重试'}</span>
+                <button type="button" onClick={retry} className="text-xs text-accent">
+                  重试
+                </button>
               </div>
             ) : (
               <canvas ref={canvasRef} />