refactor: standardize channel logging

src/channels/logging.ts

@@ -0,0 +1,33 @@
+export type LogFn = (message: string) => void;
+
+export function logInboundDrop(params: {
+  log: LogFn;
+  channel: string;
+  reason: string;
+  target?: string;
+}): void {
+  const target = params.target ? ` target=${params.target}` : "";
+  params.log(`${params.channel}: drop ${params.reason}${target}`);
+}
+
+export function logTypingFailure(params: {
+  log: LogFn;
+  channel: string;
+  target?: string;
+  action?: "start" | "stop";
+  error: unknown;
+}): void {
+  const target = params.target ? ` target=${params.target}` : "";
+  const action = params.action ? ` action=${params.action}` : "";
+  params.log(`${params.channel} typing${action} failed${target}: ${String(params.error)}`);
+}
+
+export function logAckFailure(params: {
+  log: LogFn;
+  channel: string;
+  target?: string;
+  error: unknown;
+}): void {
+  const target = params.target ? ` target=${params.target}` : "";
+  params.log(`${params.channel} ack cleanup failed${target}: ${String(params.error)}`);
+}