feat: #be tables for games, clues and shots

backend/migrations/20220315171314_games.ts

+import { Knex } from "knex";
+
+export async function up(knex: Knex): Promise<void> {
+  return knex.schema.createTable("games", function (table) {
+    table.uuid("id").primary().defaultTo(knex.raw("gen_random_uuid()"));
+    table.timestamp("began_at");
+    table.timestamp("ended_at");
+  });
+}
+
+export async function down(knex: Knex): Promise<void> {
+  return knex.schema.dropTable("games");
+}

backend/migrations/20220315171328_clues.ts

+import { Knex } from "knex";
+
+export async function up(knex: Knex): Promise<void> {
+  return knex.schema.createTable("clues", function (table) {
+    table.uuid("id").primary().defaultTo(knex.raw("gen_random_uuid()"));
+    table.uuid("game_id").references("games.id").notNullable();
+    table.uuid("word_id").references("words.id").notNullable();
+    table.timestamp("began_at");
+    table.timestamp("ended_at");
+  });
+}
+
+export async function down(knex: Knex): Promise<void> {
+  return knex.schema.dropTable("clues");
+}

backend/migrations/20220315171336_shots.ts

+import { Knex } from "knex";
+
+export async function up(knex: Knex): Promise<void> {
+  return knex.schema.createTable("shots", function (table) {
+    table.uuid("id").primary().defaultTo(knex.raw("gen_random_uuid()"));
+    table.uuid("game_id").references("games.id").notNullable();
+    table.uuid("clue_id").references("clues.id");
+    table.timestamp("began_at");
+    table.timestamp("ended_at");
+    table.string("typed");
+    table.string("final");
+  });
+}
+
+export async function down(knex: Knex): Promise<void> {
+  return knex.schema.dropTable("shots");
+}