feat: Add GitHub Actions workflows

.github/workflows/lint.yml

@@ -0,0 +1,44 @@
+name: Lint & Type Check
+
+on:
+  push:
+    branches: ['**']
+  pull_request:
+    branches: ['**']
+
+jobs:
+  lint:
+    name: Lint & Type Check
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+      
+      - name: Install dependencies
+        run: bun install
+      
+      - name: Run ESLint
+        run: bun run lint
+        continue-on-error: false
+      
+      - name: TypeScript Check (Frontend)
+        run: bunx tsc --noEmit
+        continue-on-error: false
+      
+      - name: TypeScript Check (API)
+        working-directory: ./api
+        run: bunx tsc --noEmit --module node16 --moduleResolution node16 --target ES2022 --lib ES2022 **/*.ts
+        continue-on-error: false
+      
+      - name: Notify Vercel
+        if: always()
+        uses: vercel/repository-dispatch/actions/status@v1
+        with:
+          name: 'Vercel - thrillwiki: lint'
+          status: ${{ job.status }}