feat: 移除旧版提示词系统

electron/main/ai/agent/index.ts

@@ -17,7 +17,7 @@ import {
   type Usage as PiUsage,
 } from '@mariozechner/pi-ai'
 
-import type { AgentConfig, AgentStreamChunk, AgentResult, PromptConfig, TokenUsage, SkillContext } from './types'
+import type { AgentConfig, AgentStreamChunk, AgentResult, TokenUsage, SkillContext } from './types'
 import type { AssistantConfig } from '../assistant/types'
 import { buildSystemPrompt } from './prompt-builder'
 import { extractThinkingContent, stripToolCallTags } from './content-parser'
@@ -26,7 +26,7 @@ import { AgentEventHandler } from './event-handler'
 type SimpleHistoryMessage = { role: 'user' | 'assistant'; content: string }
 
 // Re-export types for external consumers
-export type { AgentConfig, AgentStreamChunk, AgentResult, PromptConfig, TokenUsage, AgentRuntimeStatus } from './types'
+export type { AgentConfig, AgentStreamChunk, AgentResult, TokenUsage, AgentRuntimeStatus } from './types'
 
 /**
  * Agent 执行器类
@@ -39,7 +39,6 @@ export class Agent {
   private apiKey: string
   private abortSignal?: AbortSignal
   private chatType: 'group' | 'private' = 'group'
-  private promptConfig?: PromptConfig
   private assistantConfig?: AssistantConfig
   private skillCtx?: SkillContext
   private locale: string = 'zh-CN'
@@ -50,7 +49,6 @@ export class Agent {
     apiKey: string,
     config: AgentConfig = {},
     chatType: 'group' | 'private' = 'group',
-    promptConfig?: PromptConfig,
     locale: string = 'zh-CN',
     assistantConfig?: AssistantConfig,
     skillCtx?: SkillContext
@@ -60,7 +58,6 @@ export class Agent {
     this.apiKey = apiKey
     this.abortSignal = config.abortSignal
     this.chatType = chatType
-    this.promptConfig = promptConfig
     this.assistantConfig = assistantConfig
     this.skillCtx = skillCtx
     this.locale = locale
@@ -83,13 +80,9 @@ export class Agent {
 
     const maxToolRounds = Math.max(0, this.config.maxToolRounds ?? 0)
 
-    const effectivePromptConfig: PromptConfig | undefined = this.assistantConfig
-      ? { systemPrompt: this.assistantConfig.systemPrompt }
-      : this.promptConfig
-
     const systemPrompt = buildSystemPrompt(
       this.chatType,
-      effectivePromptConfig,
+      this.assistantConfig?.systemPrompt,
       this.context.ownerInfo,
       this.locale,
       this.skillCtx,
@@ -312,7 +305,6 @@ export async function runAgent(
   context: ToolContext,
   config?: AgentConfig,
   chatType?: 'group' | 'private',
-  promptConfig?: PromptConfig,
   locale?: string,
   assistantConfig?: AssistantConfig,
   skillCtx?: SkillContext
@@ -320,17 +312,7 @@ export async function runAgent(
   const activeConfig = getActiveConfig()
   if (!activeConfig) throw new Error('LLM service not configured')
   const piModel = buildPiModel(activeConfig)
-  const agent = new Agent(
-    context,
-    piModel,
-    activeConfig.apiKey,
-    config,
-    chatType,
-    promptConfig,
-    locale,
-    assistantConfig,
-    skillCtx
-  )
+  const agent = new Agent(context, piModel, activeConfig.apiKey, config, chatType, locale, assistantConfig, skillCtx)
   return agent.execute(userMessage)
 }
 
@@ -343,7 +325,6 @@ export async function runAgentStream(
   onChunk: (chunk: AgentStreamChunk) => void,
   config?: AgentConfig,
   chatType?: 'group' | 'private',
-  promptConfig?: PromptConfig,
   locale?: string,
   assistantConfig?: AssistantConfig,
   skillCtx?: SkillContext
@@ -351,16 +332,6 @@ export async function runAgentStream(
   const activeConfig = getActiveConfig()
   if (!activeConfig) throw new Error('LLM service not configured')
   const piModel = buildPiModel(activeConfig)
-  const agent = new Agent(
-    context,
-    piModel,
-    activeConfig.apiKey,
-    config,
-    chatType,
-    promptConfig,
-    locale,
-    assistantConfig,
-    skillCtx
-  )
+  const agent = new Agent(context, piModel, activeConfig.apiKey, config, chatType, locale, assistantConfig, skillCtx)
   return agent.executeStream(userMessage, onChunk)
 }

electron/main/ai/agent/prompt-builder.ts

@@ -4,7 +4,7 @@
 
 import { t as i18nT } from '../../i18n'
 import type { OwnerInfo } from '../tools/types'
-import type { PromptConfig, SkillContext } from './types'
+import type { SkillContext } from './types'
 import type { ToolContext } from '../tools/types'
 
 function agentT(key: string, locale: string, options?: Record<string, unknown>): string {
@@ -80,20 +80,19 @@ function getFallbackRoleDefinition(chatType: 'group' | 'private', locale: string
 /**
  * 构建完整的系统提示词
  *
- * 提示词配置主要来自前端 src/config/prompts.ts，通过 promptConfig 参数传递。
- * Fallback 仅在前端未传递配置时使用。
+ * 系统提示词优先使用当前助手配置；若助手不存在，再退回内置默认角色定义。
  *
- * 最终格式：{用户系统提示词}\n\n{系统锁定段(日期/owner/时间参数/通用指引)}
+ * 最终格式：{助手系统提示词}\n\n{系统锁定段(日期/owner/时间参数/通用指引)}
  */
 export function buildSystemPrompt(
   chatType: 'group' | 'private' = 'group',
-  promptConfig?: PromptConfig,
+  assistantSystemPrompt?: string,
   ownerInfo?: OwnerInfo,
   locale: string = 'zh-CN',
   skillCtx?: SkillContext,
   mentionedMembers?: ToolContext['mentionedMembers']
 ): string {
-  const systemPrompt = promptConfig?.systemPrompt || getFallbackRoleDefinition(chatType, locale)
+  const systemPrompt = assistantSystemPrompt || getFallbackRoleDefinition(chatType, locale)
   const lockedSection = getLockedPromptSection(chatType, ownerInfo, locale, mentionedMembers)
 
   let skillSection = ''

electron/main/ai/agent/types.ts

@@ -60,14 +60,6 @@ export interface AgentResult {
   totalUsage?: TokenUsage
 }
 
-/**
- * 用户自定义提示词配置
- */
-export interface PromptConfig {
-  /** 系统提示词（角色定义 + 回答要求，统一为单一字段） */
-  systemPrompt: string
-}
-
 /**
  * 技能上下文（传递给 prompt-builder）
  * 手动选择和 AI 自选两种模式互斥

electron/main/ai/assistant/index.ts

@@ -15,6 +15,5 @@ export {
   getBuiltinCatalog,
   importAssistant,
   reimportAssistant,
-  backupOldPromptPresets,
 } from './manager'
 export { getBuiltinSqlToolCatalog, getBuiltinTsToolNames } from './builtinSqlTools'

electron/main/ai/assistant/manager.ts

@@ -341,39 +341,6 @@ export function resetAssistant(id: string): AssistantSaveResult {
   return saveAssistantToDisk(resetConfig)
 }
 
-// ==================== 提示词预设迁移 ====================
-
-/**
- * 备份旧的提示词预设数据到 data/backup 目录
- */
-export function backupOldPromptPresets(data: {
-  customPresets?: unknown[]
-  builtinOverrides?: Record<string, unknown>
-  remotePresetIds?: string[]
-}): { success: boolean; filePath?: string; error?: string } {
-  try {
-    const backupDir = path.join(getAiDataDir(), '..', 'backup')
-    ensureDir(backupDir)
-
-    const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, 19)
-    const filePath = path.join(backupDir, `prompt-presets-${timestamp}.json`)
-
-    const backupContent = {
-      backupTime: new Date().toISOString(),
-      description: 'ChatLab 旧提示词预设系统备份（已被多助手系统替代）',
-      ...data,
-    }
-
-    writeJsonFile(filePath, backupContent)
-    aiLogger.info('AssistantManager', 'Old prompt presets backed up', { filePath })
-
-    return { success: true, filePath }
-  } catch (error) {
-    aiLogger.error('AssistantManager', 'Failed to backup prompt presets', { error: String(error) })
-    return { success: false, error: String(error) }
-  }
-}
-
 // ==================== 内部工具函数 ====================
 
 function ensureInitialized(): void {