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

server/lib/data-transfer.js

@@ -85,12 +85,14 @@ function bindable(v) {
 /**
  * Make a prepared INSERT OR IGNORE that only writes the columns a table
  * actually has AND the row actually provides. `omit` drops columns even if
- * present (used to strip the non-portable events.id).
+ * present (used to strip the non-portable events.id); `wrap` names a column
+ * whose value goes through a SQL function (events.data through
+ * `trim_event_data`, as every event insert must).
  */
-function makeInserter(db, table, { omit = [] } = {}) {
+function makeInserter(db, table, { omit = [], wrap = {} } = {}) {
   const cols = tableColumns(db, table).filter((c) => !omit.includes(c));
   const quoted = cols.map((c) => `"${c}"`).join(", ");
-  const placeholders = cols.map(() => "?").join(", ");
+  const placeholders = cols.map((c) => (wrap[c] ? `${wrap[c]}(?)` : "?")).join(", ");
   const stmt = db.prepare(`INSERT OR IGNORE INTO ${table} (${quoted}) VALUES (${placeholders})`);
   return (row) => stmt.run(cols.map((c) => bindable(row[c])));
 }
@@ -175,7 +177,7 @@ function importExportBundle(db, bundle) {
   const insert = {
     sessions: makeInserter(db, "sessions"),
     agents: makeInserter(db, "agents"),
-    events: makeInserter(db, "events", { omit: ["id"] }),
+    events: makeInserter(db, "events", { omit: ["id"], wrap: { data: "trim_event_data" } }),
     token_usage: makeInserter(db, "token_usage"),
     workflows: makeInserter(db, "workflows"),
     dashboard_runs: makeInserter(db, "dashboard_runs"),