feat: enforce hard test-tier requirement across all DevPlace workflow agents and feature-builder docs

Update the feature-builder agent prompt, test-maintainer agent, and all four workflow JS files (devii-tool, endpoint, feature, job-service) to codify the DevPlace test standard as a non-optional project requirement: one test file per endpoint, directory tree mirroring the URL/source path, split into three tiers (unit, api, e2e). Add explicit Test phases to devii-tool, endpoint, feature, and job-service workflows, and embed tier-specific test instructions (path mapping, fixture choice, coverage scope) directly in each workflow's meta description and TESTS constant.

devplacepy/static/js/Application.js

@@ -27,6 +27,7 @@ import { DeviiTerminal } from "./DeviiTerminal.js";
 import { ZipDownloader } from "./ZipDownloader.js";
 import { ProjectForker } from "./ProjectForker.js";
 import { IssueReporter } from "./IssueReporter.js";
+import { PlanningGenerator } from "./PlanningGenerator.js";
 import { MediaGallery } from "./MediaGallery.js";
 import WindowManager from "./components/WindowManager.js";
 import { ContainerTerminalManager } from "./ContainerTerminalManager.js";
@@ -67,6 +68,7 @@ class Application {
         this.zipDownloader = new ZipDownloader();
         this.projectForker = new ProjectForker();
         this.issueReporter = new IssueReporter();
+        this.planningGenerator = new PlanningGenerator();
         this.mediaGallery = new MediaGallery();
         this.pubsub = new PubSubClient();
     }