refactor: move StackBlitz starter to dedicated repo

Author: chrisbbreuer

README.md

@@ -55,7 +55,7 @@ Pantry executes Buddy in an isolated environment and provisions the generated pr
 
 For frontend experiments in the browser, open the live stx starter:
 
-[![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz.svg)](https://stackblitz.com/fork/github/stacksjs/stacks/tree/main/examples/stackblitz?startScript=dev&title=Stacks%20Starter)
+[![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz.svg)](https://stackblitz.com/fork/github/stacksjs/stackblitz?startScript=dev&title=Stacks%20Starter)
 
 ## Usage
 

docs/guide/stackblitz.md

@@ -6,9 +6,9 @@ description: Stacks provides a browser-native stx starter for quick frontend exp
 
 Stacks provides a browser-native stx starter for quick frontend experiments and reproducible examples.
 
-[Open the Stacks starter in StackBlitz](https://stackblitz.com/fork/github/stacksjs/stacks/tree/main/examples/stackblitz?startScript=dev&title=Stacks%20Starter)
+[Open the Stacks starter in StackBlitz](https://stackblitz.com/fork/github/stacksjs/stackblitz?startScript=dev&title=Stacks%20Starter)
 
-The starter compiles `.stx` files with `@stacksjs/stx`, serves the result from a zero-dependency Node.js server, and reloads the preview when a view or stylesheet changes.
+The dedicated [stacksjs/stackblitz](https://github.com/stacksjs/stackblitz) starter installs, compiles, serves, and tests the preview with Bun. It reloads automatically when a view or stylesheet changes.
 
 ## Supported in StackBlitz
 
@@ -18,9 +18,9 @@ The starter compiles `.stx` files with `@stacksjs/stx`, serves the result from a
 - shareable bug reproductions
 - live preview and reload
 
-## Local development remains the full runtime
+## Full projects still run locally
 
-StackBlitz WebContainers provide Node.js, not Bun. Full Stacks projects also use SQLite, rpx, and tlsx, so database, backend, cloud, and pretty local domain development run locally:
+The browser starter is intentionally frontend-scoped. Full Stacks projects also use SQLite, rpx, and tlsx, so database, backend, cloud, and pretty local domain development run locally:
 
 ```bash
 panx @stacksjs/buddy new my-app

docs/marketing/product-hunt.md

@@ -62,5 +62,5 @@ We would especially value feedback on onboarding, framework conventions, and the
 - Website: https://stacksjs.com
 - Documentation: https://stacksjs.com/docs
 - GitHub: https://github.com/stacksjs/stacks
-- StackBlitz: https://stackblitz.com/fork/github/stacksjs/stacks/tree/main/examples/stackblitz?startScript=dev&title=Stacks%20Starter
-- Whitepaper: https://whitepaper.stacksjs.dev
+- StackBlitz: https://stackblitz.com/fork/github/stacksjs/stackblitz?startScript=dev&title=Stacks%20Starter
+- Whitepaper: https://whitepaper.stacksjs.com