Restructure application to use /home for authenticated pages

- Move authenticated home page from /[locale] to /[locale]/home
- Move login page from /[locale]/login to /[locale] (new landing page)
- Move all restricted pages (bill, location, year-month, print, account) under /[locale]/home
- Simplify middleware to protect all routes under /home instead of using publicPages array
- Update auth config: change signIn page from /login to /
- Update SignInButton callback URL to redirect to /home after login
- Update all internal links throughout the application to reflect new structure
- Update server action redirects in navigationActions.ts
- Public share routes (/share/*) remain unchanged

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/ui/PageHeader.tsx

@@ -5,10 +5,10 @@ import AccountCircle from "@mui/icons-material/AccountCircle";
 
 export const PageHeader = () =>
     <div className="navbar bg-base-100 mb-6">
-        <Link className="btn btn-ghost text-xl" href="/"><Image src="/icon3.png" alt="logo" width={48} height={48} /> Režije</Link>
+        <Link className="btn btn-ghost text-xl" href="/home"><Image src="/icon3.png" alt="logo" width={48} height={48} /> Režije</Link>
         <span className="grow">&nbsp;</span>
         <SelectLanguage />
-        <Link href="/account/" className="btn btn-ghost btn-circle">
+        <Link href="/home/account/" className="btn btn-ghost btn-circle">
             <AccountCircle  />
         </Link>
     </div>