refactor!: rename chat providers to channels

src/tui/gateway-chat.ts

@@ -10,7 +10,7 @@ import {
 import {
   GATEWAY_CLIENT_MODES,
   GATEWAY_CLIENT_NAMES,
-} from "../utils/message-provider.js";
+} from "../utils/message-channel.js";
 import { VERSION } from "../version.js";
 
 export type GatewayConnectionOptions = {

src/tui/tui.ts

@@ -12,7 +12,7 @@ import {
   normalizeUsageDisplay,
 } from "../auto-reply/thinking.js";
 import { loadConfig } from "../config/config.js";
-import { formatAge } from "../infra/provider-summary.js";
+import { formatAge } from "../infra/channel-summary.js";
 import {
   buildAgentMainSessionKey,
   normalizeAgentId,