fix: stabilize embedded runner queueing

CHANGELOG.md

@@ -31,6 +31,8 @@ Docs: https://docs.clawd.bot
 - CLI: explain when auth profiles are excluded by auth.order in probe details.
 - CLI: drop the em dash when the banner tagline wraps to a second line.
 - CLI: inline auth probe errors in status rows to reduce wrapping.
+- Agents: honor enqueue overrides for embedded runs to avoid queue deadlocks in tests.
+- Daemon: use platform PATH delimiters when building minimal service paths.
 - Linux: include env-configured user bin roots in systemd PATH and align PATH audits. (#1512) Thanks @robbyczgw-cla.
 - TUI: render Gateway slash-command replies as system output (for example, `/context`).
 - Media: preserve PNG alpha when possible; fall back to JPEG when still over size cap. (#1491) Thanks @robbyczgw-cla.

src/agents/pi-embedded-runner/run.ts

@@ -71,6 +71,8 @@ export async function runEmbeddedPiAgent(
   const globalLane = resolveGlobalLane(params.lane);
   const enqueueGlobal =
     params.enqueue ?? ((task, opts) => enqueueCommandInLane(globalLane, task, opts));
+  const enqueueSession =
+    params.enqueue ?? ((task, opts) => enqueueCommandInLane(sessionLane, task, opts));
   const channelHint = params.messageChannel ?? params.messageProvider;
   const resolvedToolResultFormat =
     params.toolResultFormat ??
@@ -81,7 +83,7 @@ export async function runEmbeddedPiAgent(
       : "markdown");
   const isProbeSession = params.sessionId?.startsWith("probe-") ?? false;
 
-  return enqueueCommandInLane(sessionLane, () =>
+  return enqueueSession(() =>
     enqueueGlobal(async () => {
       const started = Date.now();
       const resolvedWorkspace = resolveUserPath(params.workspaceDir);

src/daemon/service-env.ts

@@ -121,7 +121,8 @@ export function buildMinimalServicePath(options: BuildServicePathOptions = {}):
     return env.PATH ?? "";
   }
 
-  return getMinimalServicePathPartsFromEnv({ ...options, env }).join(path.delimiter);
+  const delimiter = platform === "win32" ? path.win32.delimiter : path.posix.delimiter;
+  return getMinimalServicePathPartsFromEnv({ ...options, env }).join(delimiter);
 }
 
 export function buildServiceEnvironment(params: {