v0.1.4 - Multi-store foundation

RootLabs POS Pro v0.1.4

Multi-store foundation

• Added branch/register/employee context propagation across POS sales, WooCommerce orders, cash movements, cash cuts, refunds, dashboard filters, and tickets.
• Added WooCommerce POS order metadata for branch, register, session, and employee context.
• Added database migration 1.12 for refund branch/register/employee context with indexes and backfill.
• Fixed refund attribution so refunds prefer the original sale branch/register/employee instead of the current active session.
• Added server-side employee branch enforcement when opening POS register sessions.
• Preserved backward compatibility for single-store installs and employees without branch assignment.

Follow-up

• UX improvement: filter the register selector by employee branch. Backend enforcement is already active.