feat: tabbed setup, user metadata, light theme, scoped shift history

Consolidate the config screens under a single /setup hub with permission-
gated tabs (Devices/Tariff/Subscriptions/Site/Users/Roles/Shifts), collapsing
the top nav to Booth·Shift·Setup; old top-level paths redirect.

Users: add optional profile metadata (full name, phone, email, address) on
create/edit. Theme: a light palette saved to the user's profile (users.theme),
toggled in the header beside the language switch and applied on load like the
language preference. Both ride on a single additive migration (0008).

Shift history: a new GET /api/shifts folds the signed shift_z_report chain into
completed shifts, SCOPED server-side — operators see only their own; holders of
shift:cash see all with an operator + date-range filter. Surfaced as the Shifts
tab; an operator cannot read another operator's takings (param spoofing is
ignored).

These three features share the router, api client and i18n catalogs, so they
land together. Verified live: theme persists across reload, metadata round-
trips to the DB, and shift scoping holds (operator self-only, admin all+filter).

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

packages/db/drizzle/0008_user_profile_theme.sql

@@ -0,0 +1,5 @@
+ALTER TABLE `users` ADD `theme` text DEFAULT 'dark' NOT NULL;--> statement-breakpoint
+ALTER TABLE `users` ADD `full_name` text;--> statement-breakpoint
+ALTER TABLE `users` ADD `phone` text;--> statement-breakpoint
+ALTER TABLE `users` ADD `email` text;--> statement-breakpoint
+ALTER TABLE `users` ADD `address` text;