fix: remove workflow-util dependency on workflow-protocol

Inline Result type and ok/err helpers into workflow-util to break
dependency on the now-archived workflow-protocol package.

Also add explicit @uncaged/json-cas dep to uwf-protocol (was only
available as transitive dep via json-cas-fs).

小橘 🍊（NEKO Team）

packages/workflow-util/package.json

@@ -14,9 +14,7 @@
       "import": "./dist/index.js"
     }
   },
-  "dependencies": {
-    "@uncaged/workflow-protocol": "workspace:^"
-  },
+  "dependencies": {},
   "devDependencies": {
     "typescript": "^5.8.3"
   },

packages/workflow-util/src/base32.ts

@@ -1,4 +1,5 @@
-import { err, ok, type Result } from "@uncaged/workflow-protocol";
+import { err, ok } from "./result.js";
+import type { Result } from "./types.js";
 
 /** Crockford Base32 alphabet (no I, L, O, U) — exactly 32 symbols. */
 export const CROCKFORD_BASE32_ALPHABET = "0123456789ABCDEFGHJKMNPQRSTVWXYZ";

packages/workflow-util/src/index.ts

@@ -1,4 +1,4 @@
-export { err, ok } from "@uncaged/workflow-protocol";
+export { err, ok } from "./result.js";
 export { encodeUint64AsCrockford } from "./base32.js";
 export { env } from "./env.js";
 export {

packages/workflow-util/src/result.ts

@@ -0,0 +1,9 @@
+import type { Result } from "./types.js";
+
+export function ok<T>(value: T): Result<T, never> {
+  return { ok: true, value };
+}
+
+export function err<E>(error: E): Result<never, E> {
+  return { ok: false, error };
+}

packages/workflow-util/src/types.ts

@@ -1,4 +1,4 @@
-export type { Result } from "@uncaged/workflow-protocol";
+export type Result<T, E = Error> = { ok: true; value: T } | { ok: false; error: E };
 
 export type LoggerSink = { kind: "stderr" } | { kind: "file"; path: string };
 

packages/workflow-util/tsconfig.json

@@ -5,5 +5,5 @@
     "outDir": "dist"
   },
   "include": ["src"],
-  "references": [{ "path": "../workflow-protocol" }]
+  "references": []
 }