ci: verify workflow + arm64 cross + Makefile (Task 6)

.github/workflows/verify.yml

@@ -0,0 +1,26 @@
+name: verify
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: "npm"
+      - run: npm ci
+      - run: npm run lint
+      - run: npm run typecheck
+      - run: npm run build
+      - run: npm test
+  cross:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - run: docker buildx build --platform linux/arm64 .

Makefile

@@ -0,0 +1,11 @@
+.PHONY: dev build test run cross
+dev:
+	npm run dev
+build:
+	npm run build
+test:
+	npm test
+run:
+	npm run start
+cross:
+	docker buildx build --platform linux/arm64 .