Feat(auth): Remove auth provider entity (#6314)

**What**
- remove auth provider entity

**Why**
- The auth provider entity was not really used anywhere

**How**
- Keeping loader behavior as is but removing the 

Co-authored-by: Sebastian Rindom <7554214+srindom@users.noreply.github.com>

packages/auth/src/migrations/.snapshot-medusa-auth.json

@@ -4,71 +4,6 @@
   ],
   "name": "public",
   "tables": [
-    {
-      "columns": {
-        "provider": {
-          "name": "provider",
-          "type": "text",
-          "unsigned": false,
-          "autoincrement": false,
-          "primary": false,
-          "nullable": false,
-          "mappedType": "text"
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "unsigned": false,
-          "autoincrement": false,
-          "primary": false,
-          "nullable": false,
-          "mappedType": "text"
-        },
-        "scope": {
-          "name": "scope",
-          "type": "text",
-          "unsigned": false,
-          "autoincrement": false,
-          "primary": false,
-          "nullable": true,
-          "mappedType": "text"
-        },
-        "config": {
-          "name": "config",
-          "type": "jsonb",
-          "unsigned": false,
-          "autoincrement": false,
-          "primary": false,
-          "nullable": true,
-          "mappedType": "json"
-        },
-        "is_active": {
-          "name": "is_active",
-          "type": "boolean",
-          "unsigned": false,
-          "autoincrement": false,
-          "primary": false,
-          "nullable": false,
-          "default": "false",
-          "mappedType": "boolean"
-        }
-      },
-      "name": "auth_provider",
-      "schema": "public",
-      "indexes": [
-        {
-          "keyName": "auth_provider_pkey",
-          "columnNames": [
-            "provider"
-          ],
-          "composite": false,
-          "primary": true,
-          "unique": true
-        }
-      ],
-      "checks": [],
-      "foreignKeys": {}
-    },
     {
       "columns": {
         "id": {
@@ -89,13 +24,13 @@
           "nullable": false,
           "mappedType": "text"
         },
-        "provider_id": {
-          "name": "provider_id",
+        "provider": {
+          "name": "provider",
           "type": "text",
           "unsigned": false,
           "autoincrement": false,
           "primary": false,
-          "nullable": true,
+          "nullable": false,
           "mappedType": "text"
         },
         "scope": {
@@ -141,7 +76,7 @@
         {
           "keyName": "IDX_auth_user_provider_scope_entity_id",
           "columnNames": [
-            "provider_id",
+            "provider",
             "scope",
             "entity_id"
           ],
@@ -160,20 +95,7 @@
         }
       ],
       "checks": [],
-      "foreignKeys": {
-        "auth_user_provider_id_foreign": {
-          "constraintName": "auth_user_provider_id_foreign",
-          "columnNames": [
-            "provider_id"
-          ],
-          "localTableName": "public.auth_user",
-          "referencedColumnNames": [
-            "provider"
-          ],
-          "referencedTableName": "public.auth_provider",
-          "deleteRule": "cascade"
-        }
-      }
+      "foreignKeys": {}
     }
   ]
 }

packages/auth/src/migrations/Migration20240201100135.ts

@@ -1,22 +0,0 @@
-import { Migration } from '@mikro-orm/migrations';
-
-export class Migration20240201100135 extends Migration {
-
-  async up(): Promise<void> {
-    this.addSql('create table "auth_provider" ("provider" text not null, "name" text not null, "scope" text null, "config" jsonb null, "is_active" boolean not null default false, constraint "auth_provider_pkey" primary key ("provider"));');
-
-    this.addSql('create table "auth_user" ("id" text not null, "entity_id" text not null, "provider_id" text null, "scope" text not null, "user_metadata" jsonb null, "app_metadata" jsonb not null, "provider_metadata" jsonb null, constraint "auth_user_pkey" primary key ("id"));');
-    this.addSql('alter table "auth_user" add constraint "IDX_auth_user_provider_scope_entity_id" unique ("provider_id", "scope", "entity_id");');
-
-    this.addSql('alter table "auth_user" add constraint "auth_user_provider_id_foreign" foreign key ("provider_id") references "auth_provider" ("provider") on delete cascade;');
-  }
-
-  async down(): Promise<void> {
-    this.addSql('alter table "auth_user" drop constraint "auth_user_provider_id_foreign";');
-
-    this.addSql('drop table if exists "auth_provider" cascade;');
-
-    this.addSql('drop table if exists "auth_user" cascade;');
-  }
-
-}

packages/auth/src/migrations/Migration20240205025924.ts

@@ -0,0 +1,16 @@
+import { Migration } from "@mikro-orm/migrations"
+
+export class Migration20240205025924 extends Migration {
+  async up(): Promise<void> {
+    this.addSql(
+      'create table if not exists "auth_user" ("id" text not null, "entity_id" text not null, "provider" text not null, "scope" text not null, "user_metadata" jsonb null, "app_metadata" jsonb not null, "provider_metadata" jsonb null, constraint "auth_user_pkey" primary key ("id"));'
+    )
+    this.addSql(
+      'alter table "auth_user" add constraint "IDX_auth_user_provider_scope_entity_id" unique ("provider", "scope", "entity_id");'
+    )
+  }
+
+  async down(): Promise<void> {
+    this.addSql('drop table if exists "auth_user" cascade;')
+  }
+}