feat(ui): Enhance Graph and Kanban UX (bb-18e)

- feat(kanban): Add progressive disclosure to task details drawer
- feat(kanban): Fix title layout on mobile (remove flex-row constraint)
- feat(kanban): Add bead count and metadata to epics
- style(globals): Add status color tokens and refined scrollbars
- deps: Add dagre for true DAG layout in graph view
- chore: Update capture scripts

src/app/page.tsx

@@ -1,7 +1,36 @@
 import { KanbanPage } from '../components/kanban/kanban-page';
-import { readIssuesFromDisk } from '../lib/read-issues';
+import { readIssuesForScope } from '../lib/aggregate-read';
+import { resolveProjectScope } from '../lib/project-scope';
+import { listProjects } from '../lib/registry';
 
-export default async function Page() {
-  const issues = await readIssuesFromDisk();
-  return <KanbanPage issues={issues} projectRoot={process.cwd()} />;
+interface PageProps {
+  searchParams?: Promise<Record<string, string | string[] | undefined>>;
+}
+
+export default async function Page({ searchParams }: PageProps) {
+  const params = (await searchParams) ?? {};
+  const requestedProjectKey = typeof params.project === 'string' ? params.project : null;
+  const requestedMode = typeof params.mode === 'string' ? params.mode : null;
+  const registryProjects = await listProjects();
+  const scope = resolveProjectScope({
+    currentProjectRoot: process.cwd(),
+    registryProjects,
+    requestedProjectKey,
+    requestedMode,
+  });
+
+  const issues = await readIssuesForScope({
+    mode: scope.mode,
+    selected: scope.selected,
+    scopeOptions: scope.options,
+  });
+  return (
+    <KanbanPage
+      issues={issues}
+      projectRoot={scope.selected.root}
+      projectScopeKey={scope.selected.key}
+      projectScopeOptions={scope.options}
+      projectScopeMode={scope.mode}
+    />
+  );
 }