ci: Add type-checking step

Author: rschristian

.github/workflows/main.yml

@@ -19,3 +19,4 @@ jobs:
           cache-dependency-path: "**/package-lock.json"
       - run: npm ci
       - run: npm test
+      - run: npm run test:types

jsconfig.json

@@ -3,12 +3,15 @@
 		"target": "ES2019",
 		"strict": true,
 		"strictNullChecks": true,
+		"noImplicitAny": true,
 		"esModuleInterop": true,
 		"module": "node20",
 		"moduleResolution": "node16",
 		"noEmit": true,
 		"allowJs": true,
 		"checkJs": true,
-		"skipLibCheck": false
-	}
+		"skipLibCheck": false,
+		"maxNodeModuleJsDepth": 0
+	},
+	"include": ["src/**/*"],
 }

package.json

@@ -14,7 +14,8 @@
 		"dev": "vite demo",
 		"dev:build": "vite build demo",
 		"dev:preview": "vite preview demo",
-		"test": "premove demo/node_modules && node --test test"
+		"test": "premove demo/node_modules && node --test test",
+		"test:types": "tsc -p jsconfig.json"
 	},
 	"keywords": [
 		"preact",