feat: add session continuation fields to type definitions

Add providerSessionId, parentMessageId, historyHash to SessionRecord.
Add providerSessionId, parentMessageId to ChatCompletionRequest.
Sync renderer-side SessionRecord types.

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

Author: bennylii

src/main/proxy/types.ts

@@ -102,6 +102,10 @@ export interface ChatCompletionRequest {
   tool_choice?: ChatCompletionToolChoice
   /** Tool format - determines response format for tool calls */
   tool_format?: 'native' | 'json' | 'auto'
+  /** Provider-side session ID (for multi-turn conversation continuation) */
+  providerSessionId?: string
+  /** Provider-side last message ID (for parent_message_id injection) */
+  parentMessageId?: string
 }
 
 /**

src/main/store/types.ts

@@ -326,6 +326,12 @@ export interface SessionRecord {
     title?: string
     tokenCount?: number
   }
+  /** Provider-side session/conversation ID */
+  providerSessionId?: string
+  /** Provider-side last message ID (for parent_message_id) */
+  parentMessageId?: string
+  /** History fingerprint for session lookup */
+  historyHash?: string
 }
 
 /**

src/renderer/src/types/electron.d.ts

@@ -299,14 +299,19 @@ interface SessionRecord {
   id: string
   providerId: string
   accountId: string
-  providerSessionId: string
+  providerSessionId?: string
   parentMessageId?: string
+  historyHash?: string
   sessionType: 'chat' | 'agent'
   messages: any[]
   createdAt: number
   lastActiveAt: number
   status: 'active' | 'expired' | 'deleted'
   model?: string
+  metadata?: {
+    title?: string
+    tokenCount?: number
+  }
 }
 
 interface SessionAPI {