docs(changelog): note DAP unix socket connect hang fix

packages/coding-agent/CHANGELOG.md

@@ -29,6 +29,7 @@
 
 ### Fixed
 
+- Fixed the Linux socket-mode DAP launch (e.g. `dlv`) hanging forever when the unix socket connect failed: `connectSocket` now rejects on a `Bun.connect` error (ECONNREFUSED/ENOENT/EACCES) or when the connect stalls past the launch deadline, instead of leaving the awaiter pending and leaking the detached adapter ([#4087](https://github.com/can1357/oh-my-pi/issues/4087)).
 - Fixed discarded `Settings` instances keeping debounced save timers and chained background saves armed; discarding an instance now cancels its pending writes so they cannot race a successor's file locks.
 - Fixed `error.notify` raising a "Stopped with error" toast for provider failures while an auto-retry or async-delivery continuation was pending; the toast now waits for the true terminal settle.
 - Fixed terminal `yield` results racing post-turn maintenance, which could trigger an unnecessary automatic handoff or compaction.

packages/coding-agent/test/debug/dap-launch-failures.test.ts

@@ -493,7 +493,10 @@ describe("connectSocket unix transport", () => {
 		// yields ECONNREFUSED/ENOENT from Bun.connect. Before the fix the error
 		// handler only errored the stream and the returned promise never settled,
 		// so `await connectSocket(...)` hung the launch forever.
-		const deadSocket = path.join(os.tmpdir(), `omp-dap-dead-${Date.now()}-${Math.random().toString(36).slice(2)}.sock`);
+		const deadSocket = path.join(
+			os.tmpdir(),
+			`omp-dap-dead-${Date.now()}-${Math.random().toString(36).slice(2)}.sock`,
+		);
 		const start = Date.now();
 		await expect(connectSocket({ unix: deadSocket }, 5_000)).rejects.toThrow();
 		// Must settle on the connect error, not linger until the timeout bound.