Complete rebrand from Apoklisis to Patherly

- Update all frontend branding (title, headers, login/register pages)
- Update documentation (CLAUDE-SETUP, CURRENT-STATE, PROGRESS, LESSONS-LEARNED)
- Update backend scripts and test configuration
- Fix emoji encoding in seed scripts for Windows compatibility
- Sync seed user credentials between seed_data.py and seed_trees.py
- Update database references to patherly/patherly_test

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

frontend/src/components/layout/AppLayout.tsx

@@ -25,7 +25,7 @@ export function AppLayout() {
         <div className="container mx-auto flex h-14 items-center justify-between px-4">
           <div className="flex items-center gap-8">
             <Link to="/trees" className="text-lg font-bold text-foreground">
-              Apoklisis
+              Patherly
             </Link>
             <nav className="hidden items-center gap-1 sm:flex">
               {navItems.map((item) => (