chore: v2.8.23 — workspace groups, inner repos in Changes (opt-in), sub-agent tokens counted

Workspace groups: named, foldable, ordered sidebar sections kept per
account (agenthub.workspace.groups); a workspace joins one from its menu,
a drop on the header, a drag under a row, or Alt+Up/Down past a group's
edge; headers drag to reorder; a folded header shows its most urgent
state; New workspace in this group; fold/unfold all.

Inner repos: GET /api/lanes/:id/repos + ?repo= on git/fs routes; the
Changes panel shows a parent folder's repos only when Settings -> Git ->
Changes panel turns it on (agenthub.changes.innerRepos, off by default).

Cost: the hook writer adds a session's sub-agent transcripts to its
tokens and hours (server/lib/subagent-usage.js) — a sub-agent on the
session's own model was never counted live (~8% of a week here); an
imported session is re-raised on every pass, so a claude -p run first
seen with an empty transcript no longer stays at $0 (~10%). A one-time
raise-only catch-up (user_version 5) re-reads ~/.claude/projects.

Also: omp install script may redirect to its exact install.redirect URL
(#85, repo-links test exempts it), native paste in the terminal.

server/__tests__/me-prefs.test.js

@@ -74,6 +74,24 @@ describe("local mode: one account", () => {
     }
   });
 
+  it("keeps the sidebar's workspace groups, up to 64 KB", async () => {
+    const groups = JSON.stringify({ groups: [{ id: "g1", name: "Web" }], of: { 1: "g1" } });
+    const pad = "x".repeat(20 * 1024);
+    let r = await call("PUT", "/api/me/prefs", {
+      body: { prefs: { "agenthub.workspace.groups": groups + pad } },
+    });
+    assert.equal(r.status, 200);
+    assert.equal(r.body.prefs["agenthub.workspace.groups"], groups + pad);
+    r = await call("PUT", "/api/me/prefs", {
+      body: { prefs: { "agenthub.workspace.groups": "x".repeat(65 * 1024) } },
+    });
+    assert.equal(r.status, 400);
+    r = await call("PUT", "/api/me/prefs", {
+      body: { prefs: { "agenthub.workspace.groups": null } },
+    });
+    assert.equal(r.body.prefs["agenthub.workspace.groups"], undefined);
+  });
+
   it("keeps the account's own agent instructions, capped, blank clears", async () => {
     let r = await call("GET", "/api/me/instructions");
     assert.deepEqual(r.body, { instructions: "", max: 16000, tools: ["claude", "codex"] });