feat: support systemPrompt in createSession and updateSession

Co-authored-by: CodeFree <codefree@chinatelcom.cn>

server/service/agent/session.ts

@@ -10,6 +10,7 @@ export async function createSession(params: {
   modelId?: number | null;
   enableThinking?: number | null;
   enableTools?: number | null;
+  systemPrompt?: string | null;
   expiresAt?: Date | null;
 }): Promise<AgentSessionRow> {
   const id = `as_${Date.now().toString(36)}_${Math.random().toString(36).slice(2, 10)}`;
@@ -23,6 +24,7 @@ export async function createSession(params: {
       modelId: params.modelId ?? null,
       enableThinking: params.enableThinking ?? null,
       enableTools: params.enableTools ?? null,
+      systemPrompt: params.systemPrompt ?? null,
       expiresAt: params.expiresAt ?? null,
     })
     .returning();
@@ -107,6 +109,7 @@ export async function updateSession(
     modelId?: number | null;
     enableThinking?: number | null;
     enableTools?: number | null;
+    systemPrompt?: string | null;
     lastActiveAt?: Date;
   },
 ): Promise<void> {
@@ -116,6 +119,7 @@ export async function updateSession(
   if (data.modelId !== undefined) updates.modelId = data.modelId;
   if (data.enableThinking !== undefined) updates.enableThinking = data.enableThinking;
   if (data.enableTools !== undefined) updates.enableTools = data.enableTools;
+  if (data.systemPrompt !== undefined) updates.systemPrompt = data.systemPrompt;
   if (data.lastActiveAt !== undefined) updates.lastActiveAt = data.lastActiveAt;
   if (Object.keys(updates).length === 0) return;
   await dbGlobal.update(agentSessions).set(updates).where(eq(agentSessions.id, id));