refactor: inject CLI I/O and diagnostics

src/apps/cli/services/NodeServiceContext.ts

@@ -1,10 +1,13 @@
 import { eventHub } from "@/common/events";
 import { translateLiveSyncMessage } from "@/common/translation";
-import { ServiceContext } from "@vrtmrz/livesync-commonlib/context";
+import { ServiceContext, type StandardIo } from "@vrtmrz/livesync-commonlib/context";
 
 /** Host capabilities owned by one Self-hosted LiveSync CLI composition. */
 export class NodeServiceContext extends ServiceContext {
-    constructor(readonly databasePath: string) {
+    constructor(
+        readonly databasePath: string,
+        readonly standardIo: StandardIo
+    ) {
         super({ events: eventHub, translate: translateLiveSyncMessage });
     }
 }

src/apps/cli/services/NodeServiceContext.unit.spec.ts

@@ -9,12 +9,19 @@ import {
 } from "../../../../test/contracts/serviceContext";
 import { NodeServiceContext } from "./NodeServiceContext";
 import { NodeServiceHub } from "./NodeServiceHub";
+import type { StandardIo } from "@vrtmrz/livesync-commonlib/context";
 
 const TRANSLATION_KEY = "Replicator.Message.InitialiseFatalError";
 
 describe("NodeServiceContext contract", () => {
     it("preserves the CLI capabilities and host-neutral API results", () => {
-        const context = new NodeServiceContext("/tmp/livesync-context-contract");
+        const standardIo: StandardIo = {
+            readStdin: async () => "input",
+            prompt: async () => "answer",
+            writeStdout: () => undefined,
+            writeStderr: () => undefined,
+        };
+        const context = new NodeServiceContext("/tmp/livesync-context-contract", standardIo);
 
         expect(observeServiceContext(context, TRANSLATION_KEY)).toEqual({
             translation: translateLiveSyncMessage(TRANSLATION_KEY),
@@ -22,6 +29,7 @@ describe("NodeServiceContext contract", () => {
         });
         expect(context.events).toBe(eventHub);
         expect(context.databasePath).toBe("/tmp/livesync-context-contract");
+        expect(context.standardIo).toBe(standardIo);
 
         const hub = new NodeServiceHub(context.databasePath, context);
         const composition = observeServiceComposition(hub, context);

src/apps/cli/services/NodeServiceHub.ts

@@ -86,7 +86,7 @@ class NodeUIService<T extends ServiceContext> extends UIService<T> {
 }
 
 export class NodeServiceHub<T extends NodeServiceContext> extends InjectableServiceHub<T> {
-    constructor(basePath: string, context: T = new NodeServiceContext(basePath) as T) {
+    constructor(basePath: string, context: T) {
         const runtimeDir = nodePath.join(basePath, ".livesync", "runtime");
         const localStoragePath = nodePath.join(runtimeDir, "local-storage.json");
         const keyValueDBPath = nodePath.join(runtimeDir, "keyvalue-db.json");