feat: Workstation page — Products + Projects unified behind one sidebar entry (#549)

* feat(panel): Workstation page — Products and Projects as tabs behind one sidebar entry

* docs(map): workstation page, extracted views, and the local-filter scroll trade-off

---------

Co-authored-by: Renn F <rennf93@users.noreply.github.com>

panel/src/components/layout/sidebar.tsx

@@ -14,8 +14,7 @@ import {
   Bot,
   Shield,
   BookOpen,
-  Boxes,
-  FolderGit2,
+  Briefcase,
   GitBranch,
   Database,
   Cpu,
@@ -70,16 +69,10 @@ export const navItems = [
     tip: "Branches, commits, and diffs across every project workspace",
   },
   {
-    title: "Projects",
-    href: "/projects",
-    icon: FolderGit2,
-    tip: "Manage repos, git tokens, and per-project settings",
-  },
-  {
-    title: "Products",
-    href: "/products",
-    icon: Boxes,
-    tip: "Products the fleet ships against",
+    title: "Workstation",
+    href: "/workstation",
+    icon: Briefcase,
+    tip: "Products the fleet ships against, and the repos/projects behind them",
   },
   {
     title: "Social",