docs: add featured builder tutorial for Trust Center

docs.json

@@ -268,7 +268,8 @@
                 "group": "Trust Center",
                 "icon": "shield-check",
                 "pages": [
-                  "/phala-cloud/attestation/trust-center-verification"
+                  "/phala-cloud/attestation/trust-center-verification",
+                  "/phala-cloud/attestation/feature-builder"
                 ]
               },
               {

phala-cloud/attestation/feature-builder.mdx

@@ -0,0 +1,72 @@
+---
+description: How to become a Featured Builder on Trust Center and showcase your verified application
+title: Become a Featured Builder
+---
+
+## What is Featured Builder?
+
+Featured Builders are highlighted applications on [trust.phala.com](https://trust.phala.com) that demonstrate excellent use cases of Phala's trusted execution environment. Being featured gives your application increased visibility and credibility within the Phala ecosystem.
+
+<Frame caption="Featured Builder showcase on Trust Center">
+<img src="/images/trust-center-feature-builder.png" alt="Featured Builder section on trust.phala.com homepage" />
+</Frame>
+
+## Requirements
+
+Before applying to become a Featured Builder, ensure your application:
+
+- Is deployed on Phala Cloud with passing Trust Center verification
+- Has a complete workspace profile with proper branding
+- Has enabled public listing for the application
+
+## Step 1: Set Up Your Workspace Profile
+
+A complete workspace profile helps users understand who built the application and establishes trust.
+
+Navigate to your workspace settings in the Phala Cloud dashboard and fill in your profile information:
+
+- **Workspace Name**: Your organization or project name
+- **Description**: A brief description of what you do
+- **Logo**: Upload a clear, recognizable logo
+
+<Frame caption="Workspace profile settings in Phala Cloud dashboard">
+<img src="/images/trust-center-workspace-profile.png" alt="Workspace profile configuration page" />
+</Frame>
+
+## Step 2: Enable Public Listing
+
+Public listing makes your application discoverable on the Trust Center platform. This is required for Featured Builder consideration.
+
+In your application settings, locate and enable the **Public Listing** toggle:
+
+<Frame caption="Enable public listing in application settings">
+<img src="/images/trust-center-public-listing.png" alt="Public listing toggle in application settings" />
+</Frame>
+
+<Note type="info">
+Enabling public listing makes your application's Trust Center verification report publicly accessible. This is designed for transparency and allows users to verify your deployment.
+</Note>
+
+## Step 3: Apply for Featured Builder
+
+Once your workspace profile is complete and public listing is enabled, contact the Phala team to apply for Featured Builder status.
+
+Send an email to **cloud@phala.network** with:
+
+- Your application name and App ID
+- A brief description of your application's use case
+- Why your application would be a good showcase for Phala Cloud
+
+The team will review your application and respond within a few business days.
+
+## Benefits of Being Featured
+
+- **Increased Visibility**: Your application appears on the Trust Center homepage
+- **Credibility**: Featured status signals quality and trust to potential users
+- **Community Recognition**: Join the showcase of leading builders on Phala
+
+## Next Steps
+
+- **View Trust Center**: [trust.phala.com](https://trust.phala.com)
+- **Understand Verification**: [Trust Center Verification](/phala-cloud/attestation/trust-center-verification)
+- **Deploy Your App**: [Getting Started with Phala Cloud](/phala-cloud/getting-started/overview)