chore: mark US-011 as complete and update progress log

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

prd.json

@@ -191,7 +191,7 @@
         "Verify in browser using dev-browser skill"
       ],
       "priority": 11,
-      "passes": false,
+      "passes": true,
       "notes": ""
     },
     {

progress.txt

@@ -158,3 +158,17 @@
   - Login page uses useSearchParams to read and display success messages
   - Success messages styled with green background (bg-green-50)
 ---
+
+## 2026-01-21 - US-011
+- What was implemented: Dashboard layout with navbar component
+- Files changed:
+  - src/app/dashboard/layout.tsx - new file with dashboard layout wrapper
+  - src/components/Navbar.tsx - new reusable navbar component
+- **Learnings for future iterations:**
+  - Dashboard layout is a server component that fetches user data via createClient() from lib/supabase/server.ts
+  - Navbar accepts userEmail prop to display current user
+  - Layout wraps children with consistent max-w-7xl container and padding
+  - Navbar uses Link component to allow clicking app title to go back to dashboard
+  - Navbar has border-b styling with dark mode support for visual separation
+  - Use gap-4 for spacing between navbar items (user email and logout button)
+---