Add Pipelines models in server (#182)

* Hide workspace and refresh token from schema

* Add pipe models and migrations

* Add seeds

* Update FE graphql schema

server/src/api/@generated/pipeline-association/pipeline-association-where-unique.input.ts

@@ -0,0 +1,8 @@
+import { Field } from '@nestjs/graphql';
+import { InputType } from '@nestjs/graphql';
+
+@InputType()
+export class PipelineAssociationWhereUniqueInput {
+  @Field(() => String, { nullable: true })
+  id?: string;
+}