feat: implement PI core chat timeline

electron/coding-projects/conversation-store.ts

@@ -1,21 +1,15 @@
 import { randomUUID } from 'node:crypto';
 import path from 'node:path';
+import type { CodingConversationMetadata } from '../../shared/coding-project-contracts';
 import type { ConversationModelState, ProductModelRef } from '../coding-runtime/contracts';
 import { atomicWriteJson, readJsonFile, type JsonFileWriter } from './atomic-json';
 import { normalizeProductModelRef } from './project-config';
 
 export const CODING_CONVERSATIONS_PATH = '.niancode/conversations.json';
 
-export interface CodingConversationV2 extends ConversationModelState {
-  id: string;
-  agentId: string;
-  title: string;
+export interface CodingConversationV2 extends CodingConversationMetadata, ConversationModelState {
   piSessionId?: string;
   sessionKey?: string;
-  archivedAt: string | null;
-  unread: boolean;
-  createdAt: string;
-  updatedAt: string;
 }
 
 export interface CodingConversationFileV2 {

electron/coding-projects/project-config.ts

@@ -6,6 +6,10 @@ import {
   type ProjectAgentResponsibility,
   type ProjectType,
 } from '../../shared/project-config';
+import type {
+  CodingProjectAgent,
+  CodingProjectConfig,
+} from '../../shared/coding-project-contracts';
 import type {
   ConversationModelState,
   ConversationThinkingLevel,
@@ -17,32 +21,11 @@ export const CODING_PROJECT_CONFIG_PATH = '.niancode/project.json';
 export const LEGACY_CONVERSATION_NOTICE_VALUES = ['none', 'pending', 'acknowledged'] as const;
 export type LegacyConversationNotice = (typeof LEGACY_CONVERSATION_NOTICE_VALUES)[number];
 
-export interface CodingProjectAgentV2 extends ConversationModelState {
-  id: string;
-  avatarId: string;
-  avatarDataUrl?: string;
-  roleName: string;
-  name: string;
-  builtIn: boolean;
-  enabled: boolean;
-  skillIds: string[];
-  responsibility: ProjectAgentResponsibility;
-  prompt: string;
-  archivedAt: string | null;
-  pinned: boolean;
-  createdAt: string;
-  updatedAt: string;
-}
+export interface CodingProjectAgentV2 extends CodingProjectAgent, ConversationModelState {}
 
-export interface CodingProjectConfigV2 {
-  schemaVersion: 2;
-  projectType: ProjectType;
-  initialized: boolean;
+export interface CodingProjectConfigV2 extends CodingProjectConfig {
   agents: CodingProjectAgentV2[];
-  knowledgeDirectory: 'knowledge';
   legacyConversationNotice: LegacyConversationNotice;
-  createdAt: string;
-  updatedAt: string;
 }
 
 export type CodingProjectConfigReadResult =

electron/coding-projects/project-store.ts

@@ -1,18 +1,14 @@
 import { randomUUID } from 'node:crypto';
 import path from 'node:path';
 import type { ProjectType } from '../../shared/project-config';
+import type { CodingProjectSummary } from '../../shared/coding-project-contracts';
 import {
   createCodingProjectMetadata,
   type CodingProjectConfigV2,
 } from './project-config';
 
-export interface CodingProject {
-  id: string;
+export interface CodingProject extends CodingProjectSummary {
   path: string;
-  name: string;
-  createdAt: string;
-  updatedAt: string;
-  lastOpenedAt: string;
 }
 
 export interface CodingProjectStoreData {