feat: generate invoices

closes #29

lnvps_db/migrations/20250501162308_company_info.sql

@@ -0,0 +1,19 @@
+-- Add migration script here
+create table company
+(
+    id           integer unsigned not null auto_increment primary key,
+    created      timestamp    not null default current_timestamp,
+    name         varchar(100) not null,
+    email        varchar(100) not null,
+    phone        varchar(100),
+    address_1    varchar(200),
+    address_2    varchar(200),
+    city         varchar(100),
+    state        varchar(100),
+    postcode     varchar(50),
+    country_code varchar(3),
+    tax_id       varchar(50)
+);
+alter table vm_host_region
+    add column company_id integer unsigned,
+    add constraint fk_host_region_company foreign key (company_id) references company (id);