feat(service): add Service entity with properties for service management

src/entity/hostslog.entity.ts

@@ -13,4 +13,4 @@ export class HostsLog {
 
     @CreateDateColumn()
     created_at: Date;
-}
+}   

src/entity/service.entity.ts

@@ -0,0 +1,25 @@
+import { Column, Entity, PrimaryGeneratedColumn } from "typeorm";
+
+@Entity({name: 'services'})
+export class Service {
+    @PrimaryGeneratedColumn()
+    id: number;
+
+    @Column()
+    name: string;
+
+    @Column()
+    host: string;
+
+    @Column()
+    alive: boolean;
+
+    @Column()
+    ping_type: string;
+
+    @Column()
+    type: string;
+    
+    @Column()
+    notify: boolean;
+}