feat: v0.1.1 迭代——人设外键重构、Chat UI优化、意识节点防幻觉、日志双视图

1. 人设外键重构：persona_template 成为 system_prompt 唯一权威来源，
   agent/系统节点通过 persona_id FK 引用，含数据迁移脚本
2. Chat UI：去掉底部AI提示、加号改为弹出菜单、新建对话乐观跳转
3. 意识节点：无可用worker时禁止编造agent_id，只能自行完成或拒绝
4. 日志页面：双tab布局（系统日志 + 工作流日志列表选择）
5. 其他：SSE流式聊天、对话删除/重命名、standalone模式修复

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/src/components/Chat/LeftPanel.tsx

@@ -1,6 +1,6 @@
 import { useState, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
-import { Plus, Trash2, MessageSquare, Workflow as WorkflowIcon } from 'lucide-react';
+import { Plus, Trash2, MessageSquare, Workflow as WorkflowIcon, Pencil, Check } from 'lucide-react';
 import apiClient from '../../api/client';
 import type { Workflow } from '../../types';
 import { useChatStore } from '../../store/useChatStore';
@@ -13,15 +13,17 @@ export function LeftPanel({ activeTab }: LeftPanelProps) {
   const { t } = useTranslation();
   const [workflows, setWorkflows] = useState<Workflow[]>([]);
   const [loadingWorkflows, setLoadingWorkflows] = useState(false);
+  const [renamingId, setRenamingId] = useState<string | null>(null);
+  const [renameValue, setRenameValue] = useState('');
 
   const {
     sessions,
     activeSessionId,
     setActiveSessionId,
     removeSession,
-    createChat,
     selectedWorkflow,
     setSelectedWorkflow,
+    updateSessionTitle,
   } = useChatStore();
 
   useEffect(() => {
@@ -57,8 +59,8 @@ export function LeftPanel({ activeTab }: LeftPanelProps) {
     };
   }, [activeTab]);
 
-  const handleNewChat = async () => {
-    await createChat(t('chat.newChat'), '你好');
+  const handleNewChat = () => {
+    setActiveSessionId(null);
   };
 
   const handleDeleteChat = (e: React.MouseEvent, id: string) => {
@@ -66,6 +68,20 @@ export function LeftPanel({ activeTab }: LeftPanelProps) {
     removeSession(id);
   };
 
+  const handleStartRename = (e: React.MouseEvent, id: string, title: string) => {
+    e.stopPropagation();
+    setRenamingId(id);
+    setRenameValue(title);
+  };
+
+  const handleConfirmRename = (e: React.MouseEvent) => {
+    e.stopPropagation();
+    if (renamingId && renameValue.trim()) {
+      updateSessionTitle(renamingId, renameValue.trim());
+    }
+    setRenamingId(null);
+  };
+
   const isChats = activeTab === 'chats';
 
   return (
@@ -95,6 +111,7 @@ export function LeftPanel({ activeTab }: LeftPanelProps) {
           ) : (
             sessions.map((session) => {
               const isActive = activeSessionId === session.id;
+              const isRenaming = renamingId === session.id;
               return (
                 <div
                   key={session.id}
@@ -109,16 +126,35 @@ export function LeftPanel({ activeTab }: LeftPanelProps) {
                     <MessageSquare size={12} className={isActive ? 'text-accent' : 'text-text-muted'} />
                   </div>
                   <div className="flex-1 min-w-0">
-                    <h3 className={`text-xs truncate ${isActive ? 'text-text-primary font-medium' : 'text-text-secondary'}`}>
-                      {session.title}
-                    </h3>
+                    {isRenaming ? (
+                      <input
+                        autoFocus
+                        value={renameValue}
+                        onChange={(e) => setRenameValue(e.target.value)}
+                        onClick={(e) => e.stopPropagation()}
+                        onKeyDown={(e) => { if (e.key === 'Enter') handleConfirmRename(e as any); if (e.key === 'Escape') setRenamingId(null); }}
+                        className="w-full text-xs bg-bg-input border border-border-primary rounded px-1.5 py-0.5 text-text-primary focus:outline-none focus:border-accent"
+                      />
+                    ) : (
+                      <h3 className={`text-xs truncate ${isActive ? 'text-text-primary font-medium' : 'text-text-secondary'}`}>
+                        {session.title}
+                      </h3>
+                    )}
                   </div>
-                  <button
-                    onClick={(e) => handleDeleteChat(e, session.id)}
-                    className="opacity-0 group-hover:opacity-100 p-1 rounded text-text-muted hover:text-danger transition-all"
-                  >
-                    <Trash2 size={11} />
-                  </button>
+                  {isRenaming ? (
+                    <button onClick={handleConfirmRename} className="p-1 rounded text-accent hover:bg-accent-light transition-all">
+                      <Check size={11} />
+                    </button>
+                  ) : (
+                    <div className="flex items-center opacity-0 group-hover:opacity-100 transition-all">
+                      <button onClick={(e) => handleStartRename(e, session.id, session.title)} className="p-1 rounded text-text-muted hover:text-accent transition-all">
+                        <Pencil size={11} />
+                      </button>
+                      <button onClick={(e) => handleDeleteChat(e, session.id)} className="p-1 rounded text-text-muted hover:text-danger transition-all">
+                        <Trash2 size={11} />
+                      </button>
+                    </div>
+                  )}
                 </div>
               );
             })