feat: add CI/CD workflows and EAS build config (Sprint 5)

.gitea/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - dev
+      - 'sprint/**'
+
+jobs:
+  lint-and-typecheck:
+    name: Lint & TypeScript Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run ESLint
+        run: npx eslint . --ext .ts,.tsx --max-warnings 0
+
+      - name: Run TypeScript check
+        run: npx tsc --noEmit