Rename NetworkState to State (#18)

We'll be extracting State separately, allowing you to create your own
Network loop.

src/network.ts

@@ -1,7 +1,7 @@
 import { z } from "zod";
 import { Agent, createTypedTool } from "./agent";
 import { type AgenticModel } from "./model";
-import { type InferenceResult, NetworkState } from "./state";
+import { type InferenceResult, State } from "./state";
 import { type MaybePromise } from "./util";
 
 /**
@@ -21,7 +21,7 @@ export class Network {
   /**
    * state is the entire agent's state.
    */
-  state: NetworkState;
+  state: State;
 
   /**
    * defaultModel is the default model to use with the network.  This will not
@@ -50,7 +50,7 @@ export class Network {
   constructor({ agents, defaultModel, maxIter }: Network.Constructor) {
     this.agents = new Map();
     this._agents = new Map();
-    this.state = new NetworkState();
+    this.state = new State();
     this.defaultModel = defaultModel;
     this.maxIter = maxIter || 0;
     this._stack = [];

src/state.ts

@@ -1,4 +1,3 @@
-import { type AiAdapter, type OpenAi } from "inngest";
 import { type Agent } from "./agent";
 
 export interface InternalNetworkMessage {
@@ -8,9 +7,6 @@ export interface InternalNetworkMessage {
   // TODO: Images and multi-modality.
 }
 
-export type OpenAiMessageType =
-  AiAdapter.Input<OpenAi.AiModel>["messages"][number];
-
 export interface TextMessage {
   type: "text";
   text: string;
@@ -29,13 +25,13 @@ export interface ToolResult {
 } // TODO: Content types.
 
 /**
- * NetworkState stores state (history) for a given network of agents.  The state
+ * State stores state (history) for a given network of agents.  The state
  * includes key-values, plus a stack of all agentic calls.
  *
  * From this, the chat history can be reconstructed (and manipulated) for each
  * subsequent agentic call.
  */
-export class NetworkState {
+export class State {
   public kv: {
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     set: <T = any>(key: string, value: T) => void;