fix(chat): refresh work status from git hints

packages/ui/src/components/chat/work-status/DOCUMENTATION.md

@@ -85,7 +85,7 @@ endpoint and no polling of its own.
 | Block | Source | Notes |
 |---|---|---|
 | Context + cost | `contextUsage.ts` over `useSessionMessages`, `Session.cost` | see below — the store getters cannot serve this |
-| Branch, ahead/behind, attention | `useGitStore` directory state | warmed via `runBackgroundNetworkTask(ensureStatus)` |
+| Branch, ahead/behind, attention | `useGitStore` directory state | warmed via `runBackgroundNetworkTask(ensureStatus)` and refreshed from Git mutation hints |
 | Changed files | `useGitStore` status `files` + `diffStats` | working tree, not session-authored edits |
 | PR + checks | `usePrVisualSummary` | **read-only** |
 | Subagents | child sessions from `useAllLiveSessions` (`parentID`) + `useAllSessionStatuses` | |
@@ -326,6 +326,11 @@ background-network gate, so it cannot compete with chat bootstrap traffic for
 sockets. A panel that reports a subsystem's state cannot depend on an unrelated
 component having been mounted or opened.
 
+The repository section follows the same ownership rule. It subscribes directly
+to `sessionEvents` Git refresh hints and refreshes its directory's shared Git
+cache, rather than relying on the composer's former changed-files row or on the
+Git context surface being opened first.
+
 ## Persisted panel state
 
 Expanded sections (`workStatusExpandedSections`, keyed by a stable section id)

packages/ui/src/components/chat/work-status/WorkStatusPrimaryGroup.tsx

@@ -10,6 +10,8 @@ import { useUIStore } from '@/stores/useUIStore';
 import { useProjectsStore } from '@/stores/useProjectsStore';
 import { normalizeProjectPath } from '@/lib/projectResolution';
 import { resolveUsageTone } from '@/lib/quota';
+import { sessionEvents } from '@/lib/sessionEvents';
+import { normalizePath } from '@/lib/pathNormalization';
 import { computeContextUsage } from './contextUsage';
 import {
   WorkStatusCallout,
@@ -49,6 +51,8 @@ export const WorkStatusPrimaryGroup: React.FC<Props> = ({ sessionId, directory,
   const session = useSession(sessionId ?? '', directory ?? undefined);
   const { git } = useRuntimeAPIs();
   const ensureStatus = useGitStore((state) => state.ensureStatus);
+  const fetchStatus = useGitStore((state) => state.fetchStatus);
+  const clearDiffCache = useGitStore((state) => state.clearDiffCache);
 
   const gitStatus = useGitStore(
     React.useCallback(
@@ -60,9 +64,24 @@ export const WorkStatusPrimaryGroup: React.FC<Props> = ({ sessionId, directory,
   // Warm the shared git cache through the background-network gate so the panel
   // never competes with the chat's own bootstrap traffic for sockets.
   React.useEffect(() => {
-    if (!directory || !git) return;
+    if (!showRepository || !directory || !git) return;
     void runBackgroundNetworkTask(() => ensureStatus(directory, git));
-  }, [directory, git, ensureStatus]);
+  }, [directory, git, ensureStatus, showRepository]);
+
+  // Own the live invalidation for the repository readout. The desktop
+  // composer's changed-files row no longer renders, so this panel must not
+  // depend on ChatInput (or an opened Git surface) to refresh the shared cache
+  // on its behalf.
+  React.useEffect(() => {
+    if (!showRepository || !directory || !git) return;
+    return sessionEvents.onGitRefreshHint((hint) => {
+      if (normalizePath(hint.directory) !== normalizePath(directory)) return;
+      if (hint.paths?.length) {
+        clearDiffCache(directory, hint.paths);
+      }
+      void fetchStatus(directory, git, { silent: true });
+    });
+  }, [clearDiffCache, directory, fetchStatus, git, showRepository]);
 
   const branch = gitStatus?.current?.trim() || null;