db works, upload works

env/02_db_structure.sql

@@ -0,0 +1,13 @@
+-- users table
+drop table users;
+create table users
+(
+    id           uuid primary key,
+    email        varchar(160) not null,
+    password_hash varchar(255) not null,
+    hardware_id  varchar(120) null,
+    role         varchar(20) not null
+);
+grant select, insert, update, delete on public.users to azaion_admin;
+grant select on table public.users to azaion_reader;
+