feat: v2.7.8 — Artifacts hub, clone related repos as extra folders, quieter resume prompt

- Artifacts (/artifacts): claude.ai pages sessions publish (captured from the
  Artifact tool's hook), pinned workspace files, skills and plugins, each
  kept as a snapshot; shared ones appear in a Hub and a skill or plugin
  installs into the viewer's own account (server/lib/artifacts.js,
  /api/artifacts, docs/plans/artifacts/).
- Workspace extra folders: clone one or more related repos beside the
  workspace and add them in one step (POST /api/lanes/:id/sources/clone).
- A pane that ended by itself while tmux kept running is no longer offered
  for resume (tmux.serverStartedAt in reconcileOrphans).
- Changes panel: a folder that is not a git repo opens on Files, and its
  files open from there.
- Plus the parallel sessions' work in this tree: File Explorer button in the
  panel header, user delete, RSA SSH keys, chat/terminal and pet fixes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

client/src/pages/SettingsHub.tsx

@@ -242,7 +242,7 @@ export function SettingsHub({ section }: { section?: string } = {}) {
     };
   }, [location.key, location.hash]);
 
-  const { isAdmin } = usePermissions();
+  const { isAdmin, local } = usePermissions();
   const authState = useAuth().state;
   const signedIn = authState.mode === "server" && !!authState.user;
   const enabled = (id: string) => aiTools.byId(id)?.enabled !== false;
@@ -394,15 +394,17 @@ export function SettingsHub({ section }: { section?: string } = {}) {
       ...s("git"),
       render: () => (
         <div className="space-y-6">
-          {/* Git logins are the host's own: an admin's. */}
-          {isAdmin && (
+          {/* Git logins are the host's own: an admin's. Not in local mode,
+              nor the identity below: git uses this machine's own config,
+              SSH keys and credential helper there. */}
+          {isAdmin && !local && (
             <section id="git-credentials" className="scroll-mt-24">
               <h2 className="mb-2 text-sm font-semibold text-fg-primary">{t("gitCreds.title")}</h2>
               <GitCredentialsConfig />
             </section>
           )}
           {/* The user's own SSH key / HTTPS logins (S3: their own home). */}
-          {(isAdmin || signedIn) && (
+          {!local && (isAdmin || signedIn) && (
             <section id="git-identity" className="scroll-mt-24">
               <h2 className="mb-2 text-sm font-semibold text-fg-primary">
                 {t("gitIdentity.title")}
@@ -434,6 +436,7 @@ export function SettingsHub({ section }: { section?: string } = {}) {
     ...SETTINGS_INDEX.filter(
       (e) =>
         (isAdmin || !e.adminOnly) &&
+        (!local || !e.serverOnly) &&
         (e.section === sec.id ||
           (e.section === "agents/*" &&
             sec.id.startsWith("agents/") &&