Emit NodeNext compatible core package

packages/core/src/agent.ts

@@ -1,6 +1,6 @@
-import { AgentRunRequest, AgentRunResult, ChatMessage } from "./types";
+import { AgentRunRequest, AgentRunResult, ChatMessage } from "./types.js";
-import { recallBrain } from "./brain";
+import { recallBrain } from "./brain.js";
-import { createId, nowIso } from "./ids";
+import { createId, nowIso } from "./ids.js";
 
 export async function runAgent(
   request: AgentRunRequest,

packages/core/src/brain.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { createBrainItem, recallBrain } from "./brain";
+import { createBrainItem, recallBrain } from "./brain.js";
 
 describe("Brain recall", () => {
   it("returns matching pinned and semantic keyword items", () => {

packages/core/src/brain.ts

@@ -1,5 +1,5 @@
-import { BrainItem, BrainItemKind, BrainRecall, BrainScope } from "./types";
+import { BrainItem, BrainItemKind, BrainRecall, BrainScope } from "./types.js";
-import { createId, nowIso } from "./ids";
+import { createId, nowIso } from "./ids.js";
 
 export interface BrainInput {
   kind: BrainItemKind;

packages/core/src/index.ts

@@ -1,6 +1,6 @@
-export * from "./agent";
+export * from "./agent.js";
-export * from "./brain";
+export * from "./brain.js";
-export * from "./ids";
+export * from "./ids.js";
-export * from "./pairing";
+export * from "./pairing.js";
-export * from "./providers";
+export * from "./providers.js";
-export * from "./types";
+export * from "./types.js";

packages/core/src/pairing.ts

@@ -1,5 +1,5 @@
-import { PairedDevice, PairingChallenge } from "./types";
+import { PairedDevice, PairingChallenge } from "./types.js";
-import { createId, nowIso } from "./ids";
+import { createId, nowIso } from "./ids.js";
 
 export function createPairingChallenge(ttlMs = 5 * 60 * 1000): PairingChallenge {
   const code = String(Math.floor(100000 + Math.random() * 900000));

packages/core/src/providers.ts

@@ -1,5 +1,5 @@
-import { ModelProvider, ProviderProbeResult } from "./types";
+import { ModelProvider, ProviderProbeResult } from "./types.js";
-import { createId, nowIso } from "./ids";
+import { createId, nowIso } from "./ids.js";
 
 export function createProvider(
   kind: ModelProvider["kind"],

packages/core/tsconfig.json

@@ -5,6 +5,8 @@
     "declaration": true,
     "declarationMap": true,
     "emitDeclarationOnly": false,
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
     "noEmit": false,
     "outDir": "dist",
     "rootDir": "src"