feat: task graphs for parallel agent work across worktrees and machines

apps/mobile/src/Stack.tsx

@@ -53,6 +53,7 @@ import { GitCommitSheet } from "./features/threads/git/GitCommitSheet";
 import { GitConfirmSheet } from "./features/threads/git/GitConfirmSheet";
 import { GitOverviewSheet } from "./features/threads/git/GitOverviewSheet";
 import { ThreadAgentsSheet } from "./features/threads/ThreadAgentsSheet";
+import { TaskGraphSheet } from "./features/threads/TaskGraphSheet";
 import { ThreadQueueSheet } from "./features/threads/ThreadQueueControl";
 import { ThreadRouteScreen } from "./features/threads/ThreadRouteScreen";
 import { McpAppFullscreenScreen } from "./features/threads/McpAppFullscreenScreen";
@@ -564,6 +565,7 @@ const WORKSPACE_OVERLAY_ROUTES = new Set([
   "SettingsSheet",
   "ThreadAgents",
   "ThreadQueue",
+  "ThreadTaskGraphs",
   "ThreadReviewComment",
   "ThreadDevicePreview",
   "ThreadBrowserPreview",
@@ -818,6 +820,15 @@ const RootStackConfig = createWorkspaceStackNavigator({
         sheetGrabberVisible: true,
       },
     }),
+    ThreadTaskGraphs: createNativeStackScreen({
+      screen: TaskGraphSheet,
+      options: {
+        ...FORM_SHEET_PRESENTATION_OPTIONS,
+        headerShown: false,
+        sheetAllowedDetents: [0.6, 0.95],
+        sheetGrabberVisible: true,
+      },
+    }),
     GitOverview: createNativeStackScreen({
       screen: GitOverviewSheet,
       linking: `${THREAD_LINKING_PREFIX}/git`,