feat: closes #11 and fixed database cons remaining open

sql/models.sql

@@ -1,3 +1,4 @@
+-- drop table if exists model_data_point;
 -- drop table if exists model_defenitions;
 -- drop table if exists models;
 create table if not exists models (
@@ -14,9 +15,20 @@ create table if not exists models (
     color_mode varchar (20)
 );
 
+-- drop table if exists model_data_point;
 -- drop table if exists model_classes;
 create table if not exists model_classes (
     id uuid primary key default gen_random_uuid(),
-    model_id uuid references models (id) not null,
+    model_id uuid references models (id) on delete cascade,
     name varchar (70) not null
 );
+
+-- drop table if exists model_data_point;
+create table if not exists model_data_point (
+    id uuid primary key default gen_random_uuid(),
+    class_id uuid references model_classes (id) on delete cascade,
+    file_path text not null,
+    -- 1 training
+    -- 2 testing
+    model_mode integer default 1
+);

sql/user.sql

@@ -1,5 +1,9 @@
 -- drop table if exists tokens;
+
+-- drop table if exists model_data_point;
+-- drop table if exists model_defenitions;
 -- drop table if exists models;
+
 -- drop table if exists users;
 create table if not exists users (
     id uuid primary key default gen_random_uuid(),