add callout for AA only transactions in base dev (#733)

* add callout for AA only transactions in base dev

* update language to include retroactive data

Author: hughescoin

docs/base-chain/quickstart/builder-codes.mdx

@@ -13,6 +13,10 @@ Each code has associated metadata. Onchain metadata primarily includes a “payo
 
 Once your app is registered on [Base.dev](http://base.dev/), the Base App will auto-append your Base Builder Code to transactions its users make in your app (e.g. via your mini app, or the Base App's browser). This powers your onchain analytics in [Base.dev](http://base.dev/) and qualifies you for potential future rewards.
 
+<Warning>
+**Builder Code analytics currently only support Smart Account (AA) transactions.** EOA support is coming soon. Your attribution data is preserved and will appear once EOA support is activated.
+</Warning>
+
 
 
 ## For App Developers