a commander's own files, beside its transcript

a commander writes into its own directory — procedures, reports, the loop
it armed — and there was no way to look at any of it. /files cannot reach
it and never could: the file browser serves two roots, `home` and
`user-data`, and a commander lives at $DATA_PATH/<email>/commanders/<dir>,
which is under the one /files does not use.

so the Plan button becomes a files button on a commander. instead, not
beside: plan mode is research-and-propose-until-a-human-approves, and a
commander is the case where nobody is watching to approve. the control
promised something that cannot happen there, while the thing genuinely
missing was any view of what it had written.

an EPHEMERAL panel, the same trade /files makes for the file viewer.
/command-hq is a locked workspace with a three-item allow-list whose
comments are explicit that its structure is code's rather than the user's;
a persisted panel would mean unlocking it and widening that list. an
ephemeral layout renders beside workspace.value and never enters it, so
neither has to change.

?files=1 rather than a route, and a panel rather than a link: the
transcript stays mounted and stays the page, and a link on this surface
opens a second copy of the whole app in a new tab and loses the
conversation you were reading.

breadcrumbs stop at the commander for free — Breadcrumb renders relative
to basePath and its home crumb IS the base. worth knowing that this is the
UI's floor and not the server's: the root really is all of user-data, which
is the owner's own data either way, so it bounds the navigation rather than
the account.

the button reads its state from props rather than useSearchParams.
ModelSelector is rendered bare in its own tests and reaching for the router
inside it failed all twelve — a control that has to be mounted in a route
to render is not a control any more.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Officer-Session: 656f5c85-e49a-4f1f-b9f3-042a04b4d043

src/servers/api/command-hq/router.ts

@@ -447,6 +447,10 @@ commandHqRouter.get('/commanders/:sessionId', async (ctx) => {
   return ctx.json({
     sessionId: row.sessionId,
     name: row.name,
+    // The commander's OWN directory name, so a client can open a file browser on it. Its directory sits
+    // under `user-data` (`$DATA_PATH/<email>/commanders/<dirName>`), which the `home` root the file
+    // browser normally serves cannot reach at all — see `file-browser/router.ts` → `getRootDir`.
+    dirName: row.dirName,
     referencePaths: row.referencePaths,
     categoryId: row.categoryId,
     tagIds: tagsByRow.get(row.id) ?? [],