docs(nav): surface the business-facing pages at the top of Learn

'What Can It Do?' and 'Build Without Code' were buried inside the
Get Started folder — the exact audience they serve would never expand it.
Promote both to top-level Learn entries (/docs/platform-capabilities,
/docs/build-without-code; new-in-this-PR pages, so no redirects needed),
and lead the docs-home 'Start here' list with them.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: os-zhuang

…s/getting-started/build-without-code.mdx content/docs/build-without-code.mdxcontent/docs/getting-started/build-without-code.mdx renamed to content/docs/build-without-code.mdx content/docs/getting-started/build-without-code.mdx renamed to content/docs/build-without-code.mdx

@@ -14,8 +14,8 @@ Before diving into code, understanding these foundational ideas will make everyt
 Different readers need different doors into this documentation — pick yours:
 
 <Cards>
-  <Card href="/docs/getting-started/platform-capabilities" title="I'm evaluating the platform" description="A business-language tour of what the platform can do — views, automation, approvals, permissions, analytics — no code required to read" />
-  <Card href="/docs/getting-started/build-without-code" title="I build with the visual tools" description="What admins and business analysts can do in Studio, Console, and Setup without writing metadata by hand" />
+  <Card href="/docs/platform-capabilities" title="I'm evaluating the platform" description="A business-language tour of what the platform can do — views, automation, approvals, permissions, analytics — no code required to read" />
+  <Card href="/docs/build-without-code" title="I build with the visual tools" description="What admins and business analysts can do in Studio, Console, and Setup without writing metadata by hand" />
   <Card href="/docs/getting-started/your-first-project" title="I write metadata" description="The developer path: scaffold a project, author typed metadata with an AI agent, validate, and ship" />
   <Card href="/docs/kernel" title="I extend the platform" description="The contributor path: kernel architecture, plugins, services, and the protocol spec" />
 </Cards>

content/docs/concepts/index.mdx

@@ -3,12 +3,10 @@
   "pages": [
     "---Start Here---",
     "index",
-    "platform-capabilities",
     "how-ai-development-works",
     "build-with-claude-code",
     "your-first-project",
     "quick-start",
-    "build-without-code",
     "examples",
     "---Cheatsheets---",
     "common-patterns",

content/docs/getting-started/meta.json

@@ -27,6 +27,8 @@ flowchart LR
 
 ## Start here
 
+- [What Can It Do?](/docs/platform-capabilities) — the platform's capabilities in business language, no code — start here if you're evaluating
+- [Build Without Code](/docs/build-without-code) — what admins and analysts do visually in Console, Studio, and Setup
 - [Build with Claude Code](/docs/getting-started/build-with-claude-code) — the main workflow: an agent builds the app, you verify it in the Console
 - [How AI Development Works](/docs/getting-started/how-ai-development-works) — why AI-builds / human-verifies is fast and safe
 - [What is ObjectStack?](/docs/getting-started) — the protocol model and runtime layers

content/docs/index.mdx

@@ -2,6 +2,8 @@
   "title": "Documentation",
   "pages": [
     "---Learn---",
+    "platform-capabilities",
+    "build-without-code",
     "getting-started",
     "concepts",
     "---Build---",