feat: implement native hooks runtime

examples/policies/pi-native-hooks-verification.ts

@@ -0,0 +1,8 @@
+import type { VerificationPolicy } from "pi-native-hooks/policy";
+const manifests = new Set(["package.json", "package-lock.json", "tsconfig.json"]);
+const behavior = (path: string) => /^(extensions|src|tests|examples|skills)\//.test(path) || manifests.has(path);
+const types = (path: string) => /\.tsx?$/.test(path) || manifests.has(path);
+export default { kind: "verification", id: "pi-native-hooks-verification", project: { matches: (project) => project.packageName === "pi-native-hooks" }, requirements: [
+  { id: "tests", command: "npm test", cwd: "project-root", affects: behavior },
+  { id: "typecheck", command: "npm run typecheck", cwd: "project-root", affects: types },
+] } satisfies VerificationPolicy;