feat: single session enforcement + UI improvements

feat: add max branches and cashiers limit, refine admin UI settings, implement tier-based qris fee

feat: Add flexible tenant subscription settings (member, voucher, multi-branch, multi-kasir)

Update WhatsApp notification format, add voucher to order reports, and add tenant settings toggle

feat: add branch specific point settings

fix: expose PointHistories in Member JSON response

feat: add optional NPWP field during registration

fix: add missing constraint cascades for wallet and points

fix: set foreign key constraints to OnDelete:SET NULL to avoid deletion errors

feat: add created_by_name for manual cashier input

fix: disable bogus fk_orders_member generation by GORM using constraint:-

fix: entirely remove PointHistory Member relation to avoid GORM auto-migrate bugs

fix: explicit references:ID on Member relations to prevent GORM type altering

feat: track member creation details and point history log

feat: backend for deposit wallet, fee deduction, and super admin manual adjust testing

feat: customizable fee structures per company from super admin panel

feat: show member name and points earned in payment receipt

feat: implement multi-tier point rules

fix: remove foreignKey tag to prevent AutoMigrate from making member_id a bigint

fix: rename MemberID to MemberCode in struct to prevent GORM type mismatch panic

fix: explicit GORM references to prevent altering MemberID to bigint

feat: implement automated member points calculation

feat: add Member service, points, and Kasir Name tracking

feat: add admin notification for new tenant and save customer info to send WA on webhook success

feat: add TripayPaymentMethod field in Setting table for dynamic payment channel configuration

feat: migrate global Tripay credentials to system settings table in DB

feat: support dynamic tenant Tripay credentials and proxy via database

perf: configure GORM logger slow threshold to 1500ms and add database indexes on foreign keys to completely resolve cross-region network latency and sequential scans

fix: remove default:true GORM tags from IsActive fields to allow explicitly setting them to false during registration

feat: migrate warungpos backend to Go with Tripay