ci: added typecheck workflow

.github/workflows/typecheck.yml

@@ -0,0 +1,30 @@
+name: Typecheck
+on:
+  workflow_dispatch:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - ready_for_review
+    paths:
+      - "**.ts"
+      - "**.tsx"
+      - "**.js"
+      - "**.json"
+      - "**.lock"
+
+jobs:
+  typecheck:
+    name: Typecheck
+    runs-on: ubuntu-latest
+    if: ${{ !github.event.pull_request.draft }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Yarn install
+        uses: ./.github/actions/yarn-install
+
+      - name: Typecheck
+        run: yarn typecheck

package.json

@@ -10,7 +10,8 @@
     "lint": "eslint . --ext .js,.jsx,.ts,.tsx --ignore-path .gitignore",
     "eas-build-pre-install": "echo $GOOGLE_SERVICES_ANDROID_BASE64 | base64 --decode > ./google-services.json",
     "prepare": "husky install",
-    "start-be": "cd ../api-ping-4-gitlab && pnpm dev"
+    "start-be": "cd ../api-ping-4-gitlab && pnpm dev",
+    "typecheck": "tsc --noEmit"
   },
   "dependencies": {
     "@expo-google-fonts/source-sans-pro": "^0.2.2",