refactor!: rename chat providers to channels

src/utils.test.ts

@@ -3,7 +3,7 @@ import os from "node:os";
 import path from "node:path";
 import { describe, expect, it, vi } from "vitest";
 import {
-  assertProvider,
+  assertWebChannel,
   CONFIG_DIR,
   ensureDir,
   jidToE164,
@@ -57,9 +57,9 @@ describe("sleep", () => {
   });
 });
 
-describe("assertProvider", () => {
-  it("throws for invalid provider", () => {
-    expect(() => assertProvider("bad" as string)).toThrow();
+describe("assertWebChannel", () => {
+  it("throws for invalid channel", () => {
+    expect(() => assertWebChannel("bad" as string)).toThrow();
   });
 });