Fix sidebar creating per-thread WebSocket subscriptions for git status

Use passive git status read (useGitStatusPassive) in SidebarThreadRow
instead of useGitStatus, which creates WebSocket stream subscriptions.
The sidebar only needs to display cached PR badge data from git status
that is already being subscribed to by the active thread's BranchToolbar.
This avoids creating one server-side remote poller per unique worktree
path visible in the sidebar.

Author: cursoragent

apps/web/src/components/Sidebar.tsx

@@ -69,7 +69,7 @@ import {
   threadJumpIndexFromCommand,
   threadTraversalDirectionFromCommand,
 } from "../keybindings";
-import { useGitStatus } from "../lib/gitStatusState";
+import { useGitStatusPassive } from "../lib/gitStatusState";
 import { readNativeApi } from "../nativeApi";
 import { useComposerDraftStore } from "../composerDraftStore";
 import { useHandleNewThread } from "../hooks/useHandleNewThread";
@@ -298,7 +298,7 @@ function SidebarThreadRow(props: SidebarThreadRowProps) {
       selectThreadTerminalState(state.terminalStateByThreadId, props.threadId).runningTerminalIds,
   );
   const gitCwd = thread?.worktreePath ?? props.projectCwd;
-  const gitStatus = useGitStatus(thread?.branch != null ? gitCwd : null);
+  const gitStatus = useGitStatusPassive(thread?.branch != null ? gitCwd : null);
 
   if (!thread) {
     return null;

apps/web/src/lib/gitStatusState.ts

@@ -134,6 +134,16 @@ export function useGitStatus(cwd: string | null): GitStatusState {
   return cwd === null ? EMPTY_GIT_STATUS_STATE : state;
 }
 
+/**
+ * Passively reads the current git status for a cwd without creating a
+ * WebSocket subscription. Use this when you only need to display cached
+ * status data (e.g. sidebar PR badges) without driving server-side polling.
+ */
+export function useGitStatusPassive(cwd: string | null): GitStatusState {
+  const state = useAtomValue(cwd !== null ? gitStatusStateAtom(cwd) : EMPTY_GIT_STATUS_ATOM);
+  return cwd === null ? EMPTY_GIT_STATUS_STATE : state;
+}
+
 function ensureGitStatusClient(client: GitStatusClient): void {
   if (sharedGitStatusClient === client) {
     return;