feat(setup): hub mode triggers setup wizard with infra backup restore

docker-setup.sh --hub-customer now generates a minimal controller.yaml
(no customer.id) instead of installing full hub config, triggering the
setup wizard on first run. Hub credentials are passed via env vars
(FELHOM_SETUP_CUSTOMER_ID, FELHOM_SETUP_PASSWORD) so the wizard
auto-fills and auto-processes Hub API calls.

Welcome page shows three options in hub mode: restore from Hub (primary),
restore from local drives, or fresh install. On error, falls back to
manual form with error displayed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,16 @@
 ## Changelog
 
+### v0.31.7 — Hub mode: setup wizard with infra backup restore (2026-02-26)
+
+#### Changed
+- **docker-setup.sh hub mode**: `--hub-customer` now generates a minimal `controller.yaml` (no `customer.id`) instead of installing the full hub config — this triggers the setup wizard on first run, giving the user a choice to restore from an infra backup or start fresh
+- **docker-setup.sh**: Hub credentials are passed to the controller via `FELHOM_SETUP_CUSTOMER_ID` and `FELHOM_SETUP_PASSWORD` environment variables so the setup wizard auto-fills them
+
+#### Added
+- **Setup wizard hub pre-seeding**: When deployed with `--hub-customer`, the wizard auto-detects pre-seeded credentials and auto-processes Hub API calls (no manual form entry needed)
+- **Hub mode welcome page**: Shows three options instead of two — "Visszaállítás a Hub-ról" (auto-connects to Hub), "Helyi mentés keresése" (local drive scan), "Friss telepítés" (fresh config download)
+- **Auto-process fallback**: If Hub auto-connect fails, the wizard clears the pre-seeded password and falls back to the manual form with the error displayed
+
 ### v0.31.6 — UI: Brand-consistent button & card styling (2026-02-25)
 
 #### Changed