fix(cli): race condition in thread rm + flaky test (#265)

Two fixes:
1. cmdThreadRemove: always call both removeThreadEntry and
   removeThreadHistoryEntries regardless of resolved source,
   preventing race where thread moves from active to history
   between resolve and delete.
2. Test: add waitUntilRunningFileAbsent before thread show/rm,
   matching the pattern used by adjacent test cases.

Verified 5x consecutive runs with 0 failures.

Closes #265

packages/cli-workflow/__tests__/thread-cli.test.ts

@@ -180,6 +180,9 @@ describe("cli thread commands", () => {
     }
     expect(threads.value.some((l) => l.includes(threadId))).toBe(true);
 
+    const runningPath = join(storageRoot, "logs", added.value.hash, `${threadId}.running`);
+    await waitUntilRunningFileAbsent(runningPath, 120);
+
     const shown = await cmdThreadShow(storageRoot, threadId);
     expect(shown.ok).toBe(true);
     if (!shown.ok) {

packages/cli-workflow/src/commands/thread/rm.ts

@@ -18,14 +18,14 @@ export async function cmdThreadRemove(
     return err(`thread not found: ${threadId}`);
   }
 
-  if (resolved.source === "active") {
+  // Always clear both stores: between resolve and delete the worker may finish and
+  // move the thread from threads.json into history; branching only on resolved.source
+  // would skip history removal and leave a dangling row.
   await removeThreadEntry(resolved.bundleDir, threadId);
-  } else {
   const hist = await removeThreadHistoryEntries(resolved.bundleDir, threadId);
   if (!hist.ok) {
     return hist;
   }
-  }
 
   const infoPath = join(storageRoot, "logs", resolved.bundleHash, `${threadId}.info.jsonl`);
   const runningPath = join(storageRoot, "logs", resolved.bundleHash, `${threadId}.running`);