46 Add build step to CI (#47)

## Description

<!-- Describe your changes in detail -->
<!-- Does this fix a bug, implement a new feature, etc? -->
- Adds GitHub action to publish package to NPM

[Docs
here](https://docs.github.com/en/actions/publishing-packages/publishing-nodejs-packages)

### Related Issue(s)

<!-- Reference the issue this PR relates to -->
<!-- Use keywords if possible (ex. Closes #10 ) -->
<!--
https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/using-keywords-in-issues-and-pull-requests
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## Screenshots

<!-- (if applicable) -->

.github/workflows/ci.yml

@@ -13,8 +13,21 @@ jobs:
           ref: ${{env.GITHUB_REF}}
       - uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20.x'
           cache: 'yarn'
           cache-dependency-path: yarn.lock
       - run: yarn install --frozen-lockfile
       - run: yarn test:ci
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{env.GITHUB_REF}}
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'yarn'
+          cache-dependency-path: yarn.lock
+      - run: yarn install --frozen-lockfile
+      - run: yarn build

.github/workflows/publish.yml

@@ -0,0 +1,19 @@
+name: Publish Package to npmjs
+on:
+  release:
+    types: [published]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      # Setup .npmrc file to publish to npm
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          registry-url: 'https://registry.npmjs.org'
+      - run: yarn install --frozen-lockfile
+      - run: tsc
+      - run: yarn npm publish --provenance --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

src/knave/__mocks__/Gear.ts

@@ -1,8 +1,10 @@
+import type { GearItem, ArmorItem, WeaponItem } from '../Gear'
+
 class Gear {
   public itemSlots: number
-  public items: IGear[]
-  public armor: IArmor[]
-  public weapon: IWeapon
+  public items: GearItem[]
+  public armor: ArmorItem[]
+  public weapon: WeaponItem
 
   constructor(itemSlots: number) {
     this.itemSlots = itemSlots