feat: install knip, create gh workflow, add knip to workflow

.github/workflows/build.yml

@@ -0,0 +1,51 @@
+name: Lint
+
+on:
+  pull_request:
+    branches:
+      - "*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    env:
+      DATABASE_URL: postgresql://username:password@host:port/database
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Enable Corepack
+        run: corepack enable
+
+      - name: Use Node 20.x
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - uses: actions/cache@v4
+        name: Setup next cache
+        with:
+          path: |
+            ${{ env.STORE_PATH }}
+            ${{ github.workspace }}/.next/cache
+          # Generate a new cache whenever packages or source files change.
+          key: ${{ runner.os }}-nextjs-${{ hashFiles('**/pnpm-lock.yaml') }}-${{ hashFiles('**/*.js', '**/*.jsx', '**/*.ts', '**/*.tsx') }}
+          # If source files changed but packages didn't, rebuild from a prior cache.
+          restore-keys: |
+            ${{ runner.os }}-nextjs-${{ hashFiles('**/pnpm-lock.yaml') }}-
+
+      - name: Run build
+        run: pnpm lint
+
+      - name: Run knip
+        run: pnpm knip

package.json

@@ -8,11 +8,13 @@
     "start": "next start",
     "lint": "next lint",
     "db:push": "drizzle-kit push --config=drizzle.config.ts",
-    "db:studio": "drizzle-kit studio --config=drizzle.config.ts"
+    "db:studio": "drizzle-kit studio --config=drizzle.config.ts",
+    "knip": "knip"
   },
   "dependencies": {
     "@t3-oss/env-nextjs": "^0.10.1",
     "drizzle-orm": "^0.31.1",
+    "knip": "^5.17.4",
     "next": "14.2.3",
     "postgres": "^3.4.4",
     "react": "^18",