docs: add yellow-sdk-codemod reference to compat SDK pages

docs/build/sdk/typescript-compat/migration-overview.mdx

@@ -12,6 +12,10 @@ This guide explains how to migrate your Nitrolite dApp from the v0.5.3 SDK to th
 
 A direct migration from v0.5.3 to v1.0.0 touches **20+ files** per app with deep, scattered rewrites. The compat layer reduces this to **~5 file changes** per app.
 
+:::tip Automate with Codemod
+Before migrating manually, try the [yellow-sdk-codemod](https://github.com/layer-3/yellow-sdk-codemod). It rewrites imports, renames auth fields, migrates client constructors, updates `package.json`, and flags RPC patterns with `// TODO [codemod]` comments for the remaining manual steps.
+:::
+
 ## Installation
 
 ```bash

docs/build/sdk/typescript-compat/overview.mdx

@@ -8,6 +8,27 @@ sidebar_position: 1
 
 Compatibility layer that bridges the Nitrolite SDK **v0.5.3 API** to the **v1.0.0 runtime**, letting existing dApps upgrade to the new protocol with minimal code changes.
 
+<details>
+<summary><strong>Already integrated with <code>@erc7824/nitrolite</code> or <code>@layer-3/nitrolite</code>?</strong></summary>
+
+If your app is already built on `@erc7824/nitrolite` (v0.4 through v0.5.3) or `@layer-3/nitrolite`, you can speed up the migration using the [yellow-sdk-codemod](https://github.com/layer-3/yellow-sdk-codemod) tool. It handles the repetitive parts of the upgrade automatically: rewriting imports, migrating client constructors, renaming auth fields, and updating your `package.json`. Where the change requires context (collapsing RPC call chains, removing manual WebSocket setup), the codemod leaves a `// TODO [codemod]` comment with the exact replacement so you know what to do.
+
+```bash
+# Clone the codemod and install its dependencies
+git clone https://github.com/layer-3/yellow-sdk-codemod.git
+cd yellow-sdk-codemod && npm install
+
+# Scan your project to see what needs changing (no files are modified)
+npx tsx src/cli.ts scan --path /path/to/your-app/src
+
+# Apply all transforms and update dependencies
+npx tsx src/cli.ts run --path /path/to/your-app --update-deps
+```
+
+After running, search for `TODO [codemod]` in your codebase and work through the remaining items. See the [codemod README](https://github.com/layer-3/yellow-sdk-codemod#readme) for the full list of transforms and CLI options.
+
+</details>
+
 ## Why Use the Compat Layer
 
 The v1.0.0 protocol introduces breaking changes across 14 dimensions — wire format, authentication, WebSocket lifecycle, unit system, asset resolution, and more. A direct migration touches 20+ files per app with deep, scattered rewrites.