Add advanced guides for building confidential iApps

- Introduced a new tutorial on end-to-end encryption for iExec applications, detailing the process of encrypting results and managing RSA keys.
- Created an overview page for advanced low-level iApp building, highlighting legacy guides and prerequisites.
- Added a comprehensive quick start guide for developers, covering the creation, deployment, and monetization of decentralized applications on iExec.
- Developed a tutorial on accessing confidential datasets using Intel SGX, including dataset encryption and application preparation.
- Established a guide for building the first application on iExec, detailing the process from Docker image creation to deployment and marketplace publishing.

Author: Le-Caignec

.vitepress/sidebar.ts

@@ -186,40 +186,40 @@ export function getSidebar() {
             link: '/guides/build-iapp/debugging',
           },
           {
-            text: 'Advanced Low-Level iApp Building',
+            text: 'Advanced',
             collapsed: true,
             items: [
               {
                 text: 'Overview',
-                link: '/guides/build-iapp/advanced-low-level/',
+                link: '/guides/build-iapp/advanced/overview',
               },
               {
                 text: 'Quick Start for Developers',
-                link: '/guides/build-iapp/advanced-low-level/quick-start-for-developers',
+                link: '/guides/build-iapp/advanced/quick-start-for-developers',
               },
               {
                 text: 'Build your first application',
-                link: '/guides/build-iapp/advanced-low-level/your-first-app',
+                link: '/guides/build-iapp/advanced/your-first-app',
               },
               {
                 text: 'Build your first SGX app (SCONE)',
-                link: '/guides/build-iapp/advanced-low-level/create-your-first-sgx-app',
+                link: '/guides/build-iapp/advanced/create-your-first-sgx-app',
               },
               {
                 text: 'End-to-end Encryption',
-                link: '/guides/build-iapp/advanced-low-level/end-to-end-encryption',
+                link: '/guides/build-iapp/advanced/end-to-end-encryption',
               },
               {
                 text: 'SGX Encrypted Dataset',
-                link: '/guides/build-iapp/advanced-low-level/sgx-encrypted-dataset',
+                link: '/guides/build-iapp/advanced/sgx-encrypted-dataset',
               },
               {
                 text: 'Access Confidential Assets',
-                link: '/guides/build-iapp/advanced-low-level/access-confidential-assets',
+                link: '/guides/build-iapp/advanced/access-confidential-assets',
               },
               {
                 text: 'Build Intel TDX app',
-                link: '/guides/build-iapp/advanced-low-level/create-your-first-tdx-app',
+                link: '/guides/build-iapp/advanced/create-your-first-tdx-app',
               },
             ],
           },

…-low-level/access-confidential-assets.md …p/advanced/access-confidential-assets.mdsrc/guides/build-iapp/advanced-low-level/access-confidential-assets.md renamed to src/guides/build-iapp/advanced/access-confidential-assets.md src/guides/build-iapp/advanced-low-level/access-confidential-assets.md renamed to src/guides/build-iapp/advanced/access-confidential-assets.md

@@ -7,8 +7,9 @@ description:
 
 # ⚙️ Advanced Low‑Level iApp Building
 
-::: warning Important This section contains legacy, low-level material. Please
-note:
+::: warning Important
+
+This section contains legacy, low-level material. Please note:
 
 - Terminology and some concepts may have changed in the current documentation.
 - These topics are intentionally advanced and can be complex to understand.
@@ -17,7 +18,9 @@ note:
 
 If you believe you truly need these advanced flows or you’re unsure which path
 to take, please contact our support so we can understand your use case and help
-you efficiently: [Join our Discord](https://discord.gg/9h25DQFSCU). :::
+you efficiently: [Join our Discord](https://discord.gg/9h25DQFSCU).
+
+:::
 
 - **[Quick Start for Developers](./quick-start-for-developers)**
 - **[Build your first application](./your-first-app)**