fix(ui): remove USER_PREDEFINED from summoning, refine canvas dots, require team members

- Remove USER_PREDEFINED.md from summoning file list (web + desktop)
- Soften canvas-dots pattern (smaller dots, wider spacing)
- Require at least 1 member when creating a team
- Prevent removing the last non-lead member from team

ui/desktop/frontend/src/components/onboarding/SummoningModal.tsx

@@ -6,7 +6,6 @@ import { getWsClient } from '../../lib/ws'
 const SUMMONING_FILE_KEYS = [
   { name: 'SOUL.md', required: true, labelKey: 'summoning.fileLabelSOUL' },
   { name: 'IDENTITY.md', required: true, labelKey: 'summoning.fileLabelIDENTITY' },
-  { name: 'USER_PREDEFINED.md', required: false, labelKey: 'summoning.fileLabelUSER_PREDEFINED' },
 ]
 
 interface SummoningModalProps {

ui/desktop/frontend/src/i18n/locales/en/agents.json

@@ -286,8 +286,7 @@
     "retrying": "Retrying...",
     "done": "done",
     "fileLabelSOUL": "Soul & Personality",
-    "fileLabelIDENTITY": "Identity Card",
-    "fileLabelUSER_PREDEFINED": "Default User Context"
+    "fileLabelIDENTITY": "Identity Card"
   },
   "configGroups": {
     "core": "Core",

ui/desktop/frontend/src/i18n/locales/en/desktop.json

@@ -25,7 +25,6 @@
     "wait": "This may take a moment",
     "fileLabelSOUL": "Core personality",
     "fileLabelIDENTITY": "Identity & knowledge",
-    "fileLabelUSER_PREDEFINED": "User context",
     "agentReady": "{{name}} is ready!",
     "retrying": "Retrying..."
   },

ui/desktop/frontend/src/i18n/locales/vi/agents.json

@@ -286,8 +286,7 @@
     "retrying": "Đang thử lại...",
     "done": "xong",
     "fileLabelSOUL": "Linh hồn & Tính cách",
-    "fileLabelIDENTITY": "Thẻ danh tính",
-    "fileLabelUSER_PREDEFINED": "Ngữ cảnh người dùng mặc định"
+    "fileLabelIDENTITY": "Thẻ danh tính"
   },
   "configGroups": {
     "core": "Cốt lõi",

ui/desktop/frontend/src/i18n/locales/vi/desktop.json

@@ -25,7 +25,6 @@
     "wait": "Có thể mất một lúc",
     "fileLabelSOUL": "Tính cách cốt lõi",
     "fileLabelIDENTITY": "Danh tính & kiến thức",
-    "fileLabelUSER_PREDEFINED": "Ngữ cảnh người dùng",
     "agentReady": "{{name}} đã sẵn sàng!",
     "retrying": "Đang thử lại..."
   },

ui/desktop/frontend/src/i18n/locales/zh/agents.json

@@ -286,8 +286,7 @@
     "retrying": "重试中...",
     "done": "完成",
     "fileLabelSOUL": "灵魂与个性",
-    "fileLabelIDENTITY": "身份卡",
-    "fileLabelUSER_PREDEFINED": "默认用户上下文"
+    "fileLabelIDENTITY": "身份卡"
   },
   "configGroups": {
     "core": "核心",

ui/desktop/frontend/src/i18n/locales/zh/desktop.json

@@ -25,7 +25,6 @@
     "wait": "这可能需要一点时间",
     "fileLabelSOUL": "核心个性",
     "fileLabelIDENTITY": "身份与知识",
-    "fileLabelUSER_PREDEFINED": "用户上下文",
     "agentReady": "{{name}} 已就绪！",
     "retrying": "重试中..."
   },

ui/desktop/frontend/src/index.css

@@ -68,11 +68,11 @@
 
 /* Floating panel design system */
 .canvas-dots {
-  background-image: radial-gradient(circle, oklch(0.26 0.02 45) 0.8px, transparent 0.8px);
-  background-size: 28px 28px;
+  background-image: radial-gradient(circle, oklch(0.22 0.01 45) 0.5px, transparent 0.5px);
+  background-size: 36px 36px;
 }
 :root:not(.dark) .canvas-dots {
-  background-image: radial-gradient(circle, oklch(0.86 0.01 70) 0.8px, transparent 0.8px);
+  background-image: radial-gradient(circle, oklch(0.90 0.005 70) 0.5px, transparent 0.5px);
 }
 .floating-panel {
   background: var(--color-surface-secondary);

ui/web/src/i18n/locales/en/agents.json

@@ -533,8 +533,7 @@
     "retrying": "Retrying...",
     "done": "done",
     "fileLabelSOUL": "Soul & Personality",
-    "fileLabelIDENTITY": "Identity Card",
-    "fileLabelUSER_PREDEFINED": "Default User Context"
+    "fileLabelIDENTITY": "Identity Card"
   },
   "configGroups": {
     "core": "Core",

ui/web/src/i18n/locales/en/teams.json

@@ -310,6 +310,7 @@
     "noActiveAgents": "No active agents found. Create agents first.",
     "members": "Members",
     "membersTooltip": "Only predefined agents can be added as team members. Open agents are per-user and lack shared context needed for team collaboration.",
+    "needMembers": "Select at least 1 member for the team",
     "searchMembers": "Search and add members...",
     "displayName": "Display Name",
     "displayNamePlaceholder": "Support Team",

ui/web/src/i18n/locales/vi/agents.json

@@ -533,8 +533,7 @@
     "retrying": "Đang thử lại...",
     "done": "xong",
     "fileLabelSOUL": "Linh hồn & Tính cách",
-    "fileLabelIDENTITY": "Thẻ danh tính",
-    "fileLabelUSER_PREDEFINED": "Ngữ cảnh người dùng mặc định"
+    "fileLabelIDENTITY": "Thẻ danh tính"
   },
   "configGroups": {
     "core": "Cốt lõi",

ui/web/src/i18n/locales/vi/teams.json

@@ -310,6 +310,7 @@
     "noActiveAgents": "Không tìm thấy agent hoạt động. Hãy tạo agent trước.",
     "members": "Thành viên",
     "membersTooltip": "Chỉ có agent được định nghĩa sẵn mới có thể được thêm vào nhóm. Agent mở là per-user và thiếu ngữ cảnh dùng chung.",
+    "needMembers": "Chọn ít nhất 1 thành viên cho nhóm",
     "searchMembers": "Tìm kiếm và thêm thành viên...",
     "displayName": "Tên hiển thị",
     "displayNamePlaceholder": "Support Team",

ui/web/src/i18n/locales/zh/agents.json

@@ -533,8 +533,7 @@
     "retrying": "重试中...",
     "done": "完成",
     "fileLabelSOUL": "灵魂与个性",
-    "fileLabelIDENTITY": "身份卡",
-    "fileLabelUSER_PREDEFINED": "默认用户上下文"
+    "fileLabelIDENTITY": "身份卡"
   },
   "configGroups": {
     "core": "核心",

ui/web/src/i18n/locales/zh/teams.json

@@ -310,6 +310,7 @@
     "noActiveAgents": "未找到活跃Agent，请先创建Agent。",
     "members": "成员",
     "membersTooltip": "只有预定义Agent才能作为Team成员添加。开放Agent是按用户划分的，缺乏Team协作所需的共享上下文。",
+    "needMembers": "请至少选择1名团队成员",
     "searchMembers": "搜索并添加成员...",
     "displayName": "显示名称",
     "displayNamePlaceholder": "支持Team",

ui/web/src/pages/agents/summoning-modal.tsx

@@ -24,7 +24,6 @@ interface SummoningModalProps {
 const SUMMONING_FILES = [
   { name: "SOUL.md", required: true },
   { name: "IDENTITY.md", required: true },
-  { name: "USER_PREDEFINED.md", required: false },
 ];
 
 export function SummoningModal({

ui/web/src/pages/teams/member-sections/member-list.tsx

@@ -57,7 +57,7 @@ export function MemberList({ members, onRemove }: MemberListProps) {
             {member.role}
           </Badge>
           <div className="flex justify-center">
-            {member.role !== "lead" && onRemove && (
+            {member.role !== "lead" && onRemove && members.filter((m) => m.role !== "lead").length > 1 && (
               <button
                 type="button"
                 onClick={() => onRemove(member.agent_id)}

ui/web/src/pages/teams/team-create-dialog.tsx

@@ -193,13 +193,16 @@ export function TeamCreateDialog({ open, onOpenChange, onCreate }: TeamCreateDia
                 ))}
               </div>
             )}
+            {lead && members.length === 0 && memberOptions.length > 0 && (
+              <p className="text-xs text-amber-600 dark:text-amber-400">{t("create.needMembers")}</p>
+            )}
           </div>
         </div>
         <DialogFooter>
           <Button variant="outline" onClick={() => onOpenChange(false)} disabled={loading}>
             {t("create.cancel")}
           </Button>
-          <Button onClick={handleCreate} disabled={!name.trim() || !leadOptions.some((o) => o.value === lead) || loading} className="gap-1">
+          <Button onClick={handleCreate} disabled={!name.trim() || !leadOptions.some((o) => o.value === lead) || members.length === 0 || loading} className="gap-1">
             {loading && <Loader2 className="h-3.5 w-3.5 animate-spin" />}
             {loading ? t("create.creating") : t("create.create")}
           </Button>