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>

kilostar/core/postgres_database/postgres.py

@@ -171,6 +171,11 @@ class PostgresDatabase:
         await self.ready_event.wait()
         return await self._provider_database.delete_provider(provider_id)
 
+    async def delete_provider_by_title(self, provider_title: str):
+        """按 provider_title 删除模型 Provider 记录。"""
+        await self.ready_event.wait()
+        return await self._provider_database.delete_provider_by_title(provider_title)
+
     async def update_provider_db(self, provider_id: str, **kwargs):
         """部分更新指定 Provider 的字段。"""
         await self.ready_event.wait()
@@ -183,13 +188,13 @@ class PostgresDatabase:
         provider_title: str,
         model_id: str,
         tools: list[str] = None,
-        custom_system_prompt: str = None,
+        persona_id: str = None,
         display_name: str = None,
     ):
         """插入或更新某个系统节点（如 consciousness/regulatory）的模型配置。"""
         await self.ready_event.wait()
         return await self._system_node_database.upsert_system_node_config(
-            node_name, provider_title, model_id, tools, custom_system_prompt, display_name
+            node_name, provider_title, model_id, tools, persona_id, display_name
         )
 
     async def get_all_system_node_configs(self):
@@ -197,6 +202,11 @@ class PostgresDatabase:
         await self.ready_event.wait()
         return await self._system_node_database.get_all_system_node_configs()
 
+    async def get_system_node_config(self, node_name: str):
+        """按 node_name 取出单个系统节点的模型配置。"""
+        await self.ready_event.wait()
+        return await self._system_node_database.get_system_node_config(node_name)
+
     # Individual Database Methods
     async def add_worker_individual(self, **kwargs):
         """登记一个新的 Worker Individual 配置。"""
@@ -306,6 +316,16 @@ class PostgresDatabase:
         await self.ready_event.wait()
         return await self._chat_history_database.list_chat_messages(chat_id)
 
+    async def get_chat_session(self, chat_id: str):
+        """按 chat_id 取出单个聊天会话。"""
+        await self.ready_event.wait()
+        return await self._chat_history_database.get_chat_session(chat_id)
+
+    async def delete_chat_session(self, chat_id: str):
+        """删除聊天会话及其所有消息。"""
+        await self.ready_event.wait()
+        return await self._chat_history_database.delete_chat_session(chat_id)
+
     # MCP Server Database Methods
     async def upsert_mcp_server(self, server_id: str, config: dict):
         """插入或更新一条 MCP 服务器配置；env 中敏感字段自动加密。"""
@@ -423,9 +443,9 @@ class PostgresDatabase:
         await self.ready_event.wait()
         return await self._persona_template_database.get_template(template_id)
 
-    async def list_templates(self, owner_id: str = None, include_builtin: bool = True):
+    async def list_templates(self, owner_id: str = None, **kwargs):
         await self.ready_event.wait()
-        return await self._persona_template_database.list_templates(owner_id, include_builtin)
+        return await self._persona_template_database.list_templates(owner_id=owner_id)
 
     async def update_template(self, template_id: str, **kwargs):
         await self.ready_event.wait()