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/pages/Workspace.tsx

@@ -49,6 +49,7 @@
  *
  * ----------------------------------------------------------------------------- */
 
+import { runWorktreeSession, type RunWorktree } from "../lib/runWorktree";
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
 import { useLocation, useNavigate, useSearchParams } from "react-router-dom";
 import { useTranslation } from "react-i18next";
@@ -687,12 +688,13 @@ export function Workspace() {
     };
     // eslint-disable-next-line react-hooks/exhaustive-deps -- the lane by id
   }, [sessionParam, replayLane?.id]);
-  const gitSession =
-    openedRun?.worktree && openedRun.sessionId
-      ? openedRun.sessionId
-      : sessionParam && replayed?.id === sessionParam && replayed.worktree
-        ? sessionParam
-        : undefined;
+  const runWorktree = useRef<RunWorktree | null>(null);
+  runWorktree.current = runWorktreeSession(runWorktree.current, runParam, openedRun);
+  const gitSession = runWorktree.current
+    ? runWorktree.current.session
+    : sessionParam && replayed?.id === sessionParam && replayed.worktree
+      ? sessionParam
+      : undefined;
 
   // An unsaved whole-file edit in the Changes panel. While it is open the
   // panel stays on the tree it was opened in — moving it (another workspace,