v1.0.1 — Installer locale detection

What's new

The installer now detects the browser language from the very first request via the Accept-Language header and automatically picks the matching branding:

Browser language	Language	Brand
de-* as top preference	German	Schneespur
All others (en, zh, ja, ar, it, fr, …)	English	Wintertrace

There is also a DE/EN switcher in the header for manual override — the choice applies for the browser session.

Previously the language was only chosen in step 5 (config), so steps 1–4 (welcome, DB setup, preflight, migrations) were always German regardless of browser. That's now fixed.

Changes in detail

• New SetInstallerLocale middleware using Symfony's getPreferredLanguage for clean q-value handling
• The brand() helper returns the correct name even without a database connection (locale-based)
• Step 5 uses the language already detected server-side instead of running a second JS detection
• Explicit ext-sodium Composer requirement (needed by the auto-update mechanism)

Upgrading from v1.0.0

1. Download the ZIP
2. Copy the contents over the existing installation via FTP (overwrite files)
3. Do not overwrite .env and storage/app/installed.lock
4. Done — no DB migration needed

Or via auto-update (if configured): offered automatically on the next update check.

Requirements

• PHP ≥ 8.2 with ext-sodium (present by default on Strato/IONOS/All-Inkl)
• MySQL ≥ 5.7