fix: event-loop freezes, plugin-install boot crash, tmux attach/scrollbar, Codex transcripts

- GET /api/workflows: one LEAD() window pass in a read worker (read-pool.js,
  workflow-stats.js); idx_events_session restored, idx_events_tool added
- compat-sqlite gains function/pluck/readonly so a plugin install without a
  better-sqlite3 build boots again; antigravity-usage uses db.js's Database
- install-hooks adds no checkout hooks while the agenthub plugin is enabled
  (events were doubled)
- terminal attach runs the live tmux server's own binary; the pane scrollbar
  gets a visible 2-column style, and claude panes start with
  CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN=1 so tmux keeps history to scroll
- Codex sessions' conversation in GET /api/sessions/:id/transcript
- Codex/Antigravity sessions claimed by their workspace without hooks
- UI-audit follow-ups, docs and OpenAPI

client/src/App.tsx

@@ -54,7 +54,7 @@
  * - `skills/file-headers/` — mandatory `@author` header policy.
  * ============================================================================= */
 
-import { BrowserRouter, Routes, Route, Navigate, useParams } from "react-router-dom";
+import { BrowserRouter, Routes, Route, Navigate, useParams, useLocation } from "react-router-dom";
 import { lazy, Suspense, useCallback, useEffect, type ReactNode } from "react";
 import { useTranslation } from "react-i18next";
 import { Layout } from "./components/Layout";
@@ -92,8 +92,9 @@ function PageFallback() {
 }
 
 function Page({ children }: { children: ReactNode }) {
+  const { pathname } = useLocation();
   return (
-    <RouteErrorBoundary>
+    <RouteErrorBoundary resetKey={pathname}>
       <Suspense fallback={<PageFallback />}>{children}</Suspense>
     </RouteErrorBoundary>
   );