Add automatic session migration when switching from SDK to Native mode

packages/ui/src/lib/lite-mode.ts

@@ -165,6 +165,34 @@ export const nativeSessionApi = {
         return data.messages
     },
 
+    /**
+     * Import sessions from SDK mode to Native mode
+     */
+    async importSessions(workspaceId: string, sessions: Array<{
+        id: string
+        title?: string
+        parentId?: string | null
+        createdAt?: number
+        updatedAt?: number
+        model?: { providerId: string; modelId: string }
+        agent?: string
+        messages?: Array<{
+            id: string
+            role: "user" | "assistant" | "system" | "tool"
+            content?: string
+            createdAt?: number
+        }>
+    }>): Promise<{ success: boolean; imported: number; skipped: number }> {
+        const response = await fetch(`${CODENOMAD_API_BASE}/api/native/workspaces/${encodeURIComponent(workspaceId)}/sessions/import`, {
+            method: "POST",
+            headers: { "Content-Type": "application/json" },
+            body: JSON.stringify({ sessions })
+        })
+        if (!response.ok) throw new Error("Failed to import sessions")
+        return response.json()
+    },
+
+
     /**
      * Send a prompt to the session and get a streaming response
      */