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/templates/landing.html

@@ -149,37 +149,40 @@
     </section>
     {% endif %}
 
-    <section class="landing-section landing-bots">
+    <section class="landing-section landing-help">
         <div class="landing-section-header">
-            <h2>Self-Maintaining by Design</h2>
-            <a href="/docs/claude.html" class="landing-section-link">How it works &rarr;</a>
+            <h2>Build With Us</h2>
+            <a href="/docs/index.html" class="landing-section-link">Browse the docs &rarr;</a>
         </div>
-        <p class="landing-bots-intro">DevPlace keeps its own house in order. A set of single-purpose Claude Code subagents reviews the codebase for security, audit coverage, documentation accuracy, and code quality, then fixes what it finds and proves the build still works.</p>
-        <div class="landing-bots-grid">
-            <div class="landing-bot-card">
-                <div class="landing-bot-icon">&#x1F6E1;</div>
-                <h3>Security</h3>
-                <p>Checks every route guard, ownership rule, and input limit across the app.</p>
+        <p class="landing-help-intro">DevPlace is built in the open and made to be extended. Read the docs, explore the API, file an issue, or let Devii - our in-platform AI developer - do the work with you. Everything you need to start contributing is one click away.</p>
+        <div class="landing-help-grid">
+            <div class="landing-help-card">
+                <div class="landing-help-icon">&#x1F4DA;</div>
+                <h3>Documentation</h3>
+                <p>Guides, the design system, component references, and deep internals - tiered for newcomers and operators alike.</p>
+                <a href="/docs/index.html" class="landing-help-link">Read the docs &rarr;</a>
             </div>
-            <div class="landing-bot-card">
-                <div class="landing-bot-icon">&#x1F4DC;</div>
-                <h3>Audit</h3>
-                <p>Confirms every action that changes data leaves an audit trail.</p>
+            <div class="landing-help-card">
+                <div class="landing-help-icon">&#x1F9E9;</div>
+                <h3>API Reference</h3>
+                <p>A complete REST API with live OpenAPI schema. Build integrations, bots, and tools on top of every endpoint.</p>
+                <div class="landing-help-links">
+                    <a href="/swagger">Swagger UI</a>
+                    <a href="/openapi.json">OpenAPI JSON</a>
+                </div>
             </div>
-            <div class="landing-bot-card">
-                <div class="landing-bot-icon">&#x1F4DA;</div>
-                <h3>Docs</h3>
-                <p>Keeps the documentation in step with the code, for the right audience.</p>
+            <div class="landing-help-card">
+                <div class="landing-help-icon">&#x1F41B;</div>
+                <h3>Contribute &amp; Report</h3>
+                <p>Found a bug or have an idea? Open an issue and follow it through to resolution in the integrated tracker.</p>
+                <a href="/issues" class="landing-help-link">Open the issue tracker &rarr;</a>
             </div>
-            <div class="landing-bot-card">
-                <div class="landing-bot-icon">&#x267B;</div>
-                <h3>Quality</h3>
-                <p>Removes duplication and enforces the project's naming and style rules.</p>
-            </div>
-            <div class="landing-bot-card">
-                <div class="landing-bot-icon">&#x1F9EA;</div>
-                <h3>Tests</h3>
-                <p>Spots routes with no integration test and writes the missing coverage.</p>
+            <div class="landing-help-card landing-help-card-lead">
+                <div class="landing-help-icon">&#x1F916;</div>
+                <h3>Meet Devii</h3>
+                <p>Devii is your AI developer built into the platform. Ask it to write posts, manage projects, run containers, edit files, and guide you live on the page.</p>
+                <button type="button" class="landing-help-cta" data-devii-open>Launch Devii</button>
+                <a href="/devii/" class="landing-help-link">Open the full terminal &rarr;</a>
             </div>
         </div>
     </section>